scapula bone anatomy


Omissions? One abnormality affecting the development of the scapula is Sprengel’s deformity. Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Posteriorly, the scapula is divided into a supraspinous fossa and infraspinous fossa by the scapular spine. Sitting on the front of the scapula is a large muscle called subscapularis. This condition may be associated with other musculoskeletal defects in the body. In this video, we walk you through the anatomy and function of the scapula - one of the most commonly broken bones in the human body! Related Articles. Ⓒ 2020 About, Inc. (Dotdash) — All rights reserved. Our editors will review what you’ve submitted and determine whether to revise the article. Like their connected bones, the scapulae are paired, with each scapula on either side of the body being roughly a mirror image of the other. The scapula bone or shoulder blade, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone), vintage line drawing or en An ox scapula treated for oracle taking, excavated in 1971 at Anyang, Honan. Commonly known as the shoulder blade, the scapula is a relatively flat bone which articulates with both the humerus of the upper arm, forming the glenohumeral joint, and the clavicle (collar bone) forming the acromioclavicular joint. Scapula, also called shoulder blade, either of two large bones of the shoulder girdle in vertebrates. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Anterior view of the bones of the right shoulder, showing the clavicle (collarbone), scapula (shoulder blade), and humerus (upper arm bone). Dec 1, 2013 - This Pin was discovered by David D. Discover (and save!) Splints, braces, or slings can be provided by medical professionals or through treatment by a physical or occupational therapist as part of a treatment course. Subluxation apart from a neurological diagnosis does occur in extreme cases of ligament laxity. This large piece of triangular bone is called the Scapula or shoulder blade or wing bone and it connects the clavicle with the upper arm. The clavicle (collarbone) extends between the manubrium of the sternum and the acromion of the scapula.. Sprengel Deformity. This shoulder blade anatomy model represents the anatomy of an adult male scapula. See more. Describe the anatomy of the scapula and clavicle . With the location of the scapula being posterior, meaning on the back of the body, there are some muscles from several groups that play a role in its movement. Boezaart AP, Tighe P. New trends in regional anesthesia for shoulder surgery: Avoiding devastating complications. National Center for Advancing Translational Sciences. What are the different parts of scapula? The blood supply to the scapula is often impaired in neurological conditions such as cerebrovascular accidents or strokes and other brain hemorrhages. Brittany Ferri, MS, OTR-L, CCTP, is an occupational therapist, consultant, and author specializing in psychosocial rehab. Scapula Bone 3d Model by Doctor Jana on Sketchfab. The scapula, better known as the shoulder blade, is a triangular bone that serves as a joining force between the clavicle and the humerus. 2. Two important arteries, the axillary artery and the subclavian artery, run anterior to the scapula and posterior to the clavicle. By building new yet familiar motor programs, therapists aim to establish normal and purposeful movement. If an injury or condition causes these muscles to become weak or imbalanced, it can alter the position of the scapula at rest or in motion. Rehabilitation of injury to a shoulder ligament injury and shoulder impingement syndrome would include rest and splinting to ensure proper positioning. Subluxation typically occurs as a result of a neurological incident, such as a brain hemorrhage or a stroke. 2. Scapula Bone Quiz – Anterior Markings. Tibia and Fibula Quiz: Posterior Markings. 2006;86(8):1065-1074. doi:10.1093/ptj/86.8.1065. The three bones scapula, coracoid and furculum- come together dorsally leaving a triosseal canal (foramen triosseum) through which the tendon of the supracoracoideus muscle passes to insert on the humerus as an important part of the flight mechanism; it acts to elevate the humerus and the wing. Looking to learn all the 206 bones in the human body? The name “scapula” derives from Latin, meaning “trowel” or “small shovel,” which it seemed to resemble. As mentioned, this is often a crucial impairment in those affected by neurological events such as a stroke due to a blockage of nerve and blood supply to this area. The spine ends in the acromion, a process that articulates with the clavicle, or collarbone, in front and helps form the upper part of the shoulder socket. Positioning is also beneficial to minimize the frequency of the nerve pinching and causing acute, persistent pain. Let us know if you have suggestions to improve this article (requires login). Medical professionals distinguish scapula fractures by where they occur in the bone. When the arms are required to push…. There are only three muscles … The furcula connects the shoulder joints with the anterior edge of…, …are the shoulder blade, or scapula, and the collarbone, or clavicle. The scapula (Latin: scapula) is a flat triangular bone that connects the humerus and the clavicle. The scapula (shoulder blade) is a flat bone lying against the cranial part of the lateral thoracic wall.. The shoulder is one of the largest and most complex joints in the body. This type of treatment guides an individual to complete basic strengthening activities (and eventually functional activities such as dressing, toileting, bathing, and more) using outlined methods in order to assist with reshaping the brain and building motor programs. Subluxation of the shoulder joint occurs from extreme forms of ligament laxity. This can be difficult to reverse and, again, early intervention is important to minimize the complications which can result from this condition. The pattern of muscle contractions and motion that occurs between the scapula and the humerus is called the scapulohumeral rhythm, which is a large focus of physical therapy for shoulder pain. Subluxation is a condition that can occur in any joint in the body. 3. This can cause mild pain and loss of range of motion in simple cases or symptoms mimicking that of nerve damage, where there is no motion in the scapula due to loss of ligament function.. The coracoid process is directed forwards. Try these curated collections. This serves to place undue pressure on the nerves and blood supply running through the scapular muscles. 5. 3 Anatomy of Scapula. The degree of displacement of the shoulder blade can range from two to 10 centimeters.. The scapula is also known as the shoulder bone, shoulder blade, wing bone, and blade bone. bones of shoulder scapula muscles anatomy clavicle bone scapula bone shoulder joint model human scapula scapula structure orthopaedic 3d illustration fractured shoulder shoulder bones. 4. Thank you for becoming a member. Additionally, due to the location of the scapula on the axilla, there are many lymph nodes and lymph networks in this area which assist with fluid drainage and balance within the body. Description. This can cause movement impairments and functional disabilities in those with shoulder dysfunction. This can lead to a variety of other issues, including impingement and subluxation. Ligaments are vital to aid in the maintenance of scapula stability. Three is the magic number for the scapula: It has three depressions (called fossae), three borders, and three angles. the body of scapula is thin, flat and triangular with two surfaces- ventral and dorsal. This article was most recently revised and updated by, https://www.britannica.com/science/scapula. Anteriorly, on the costal surface, is the shallow subscapula… Injury to the ligaments surrounding the scapula can occur and result in a range of symptoms depending on the severity. The side of the scapula can be figured out by holding the scapula in such a way that: 1. The coracoid articulates with the forward edge of the sternum and with the scapula, humerus, and furcula. Flashcard anatomy of the scapula. A scapula’s posterior surface is crossed obliquely by a prominent ridge, the spine, which divides the bone into two concave areas, the supraspinous and infraspinous fossae. Two important arteries, the axillary artery and the subclavian artery, run anterior to the scapula and posterior to the clavicle. In: StatPearls. It is located between the elbow joint and the shoulder. Medical professionals can determine whether a significant loss of function has occurred when deciding whether therapy is indicated as part of the individual’s treatment. Similar to the scapulohumeral rhythm, this relationship is vital to the stability of the shoulder joint as a whole. In humans they are triangular and lie on the upper back between the levels of the second and eighth ribs. The scapula, or shoulder blade, is a large triangular-shaped bone that lies in the upper back. The name derives from the Classical Latin word for trowel or small shovel, which it was thought to resemble. Sprengel Deformity. Due to the strength and location of the scapula bone, fractures are rare and only occur in instances of severe or major multiple trauma. Related Articles. Note the flat shape of the shoulder blade – in some parts of the supraspinous and infraspinous fossas, the thickness is less than 1 millimeter and looks semitranslucent when observed against the light. Treasure Island, FL: StatPearls Publishing; 2018. Thank you, {{form.email}}, for signing up. The role of the scapula. Discuss the muscles attached to the scapula and clavicle and their function . Borders. The scapula is described as having superior, medial, and lateral borders. This causes loss of nerve function to the large nerve network, called the brachial plexus, which lies over the shoulder joint. Describe both the sternoclavicular and acromioclavicular joints . Protraction and retraction of the scapula assist with movement of the pectoral girdle and chest muscles both forward and back, respectively. Scapula lies on the posterolateral aspect of the thorax extending from 2nd to 7th rib. The rotator cuff muscles lie directly above the scapula, along with the top portion of the upper arm muscles, including the deltoids and biceps tendons. This bone is located posteriorly (on the back half of the body). Many muscles are located in the area of the shoulder girdle, including rotator cuff muscles, nerve networks such as the brachial plexus, and upper arm muscles. Shoulder Separation Causes, Symptoms and Treatments, The Superficial Layer of Your Back Includes the Extrinsic Muscles, Shoulder dysfunction assessment: self-report and impaired scapular movements, New trends in regional anesthesia for shoulder surgery: Avoiding devastating complications. Get the best of Sporcle when you Go Orange.This ad-free experience offers more features, more stats, and more fun while also helping to support Sporcle. Phys Ther. Scapula has three borders and two basic surfaces. This means partial or complete loss of motor and sensory function in the impaired arm. The scapula is responsible for several motions which are integral to daily movement and smooth upper extremity motion. Splints and braces are very helpful in promoting proper posture and preventing further injury. In humans, it is a flat bone, roughly triangular in shape, placed on a posterolateral aspect of the thoracic cage The humerus is the long bone in the upper arm. The scapula is commonly referred to as the shoulder blade. Of the patients with a scapular fracture, 50 to 60% have a scapular body fracture, and 25% have a scapular neck fracture. Scapula Bone Anatomy. Rest will help lessen the pressure placed on the joint, along with decreasing overall swelling and pain. When excessive pressure is placed on nerves over an extended period of time, this can lead to a permanent loss of nerve function. For this reason, immediate treatment of shoulder impingement is paramount to restoring function and normal movement. Describe the normal motions of both the sternoclavicular, acromioclavicular, and scapulothoracic joints . National Organization for Rare Disorders. Proper positioning is important to give the ligament(s) the opportunity to return to their natural and taut form, if possible. Basic Role and Anatomy of the Scapula Humans have two scapula bones. A scapula’s posterior surface is crossed obliquely by a prominent ridge, the spine, which divides the bone into two concave areas, the supraspinous and infraspinous fossae. Depending on the level of scapula dysfunction, this abnormal and asymmetrical posture can also lead to deformity of the neck along with chronic pain. The spine and fossae give attachment to muscles that act in rotating the arm. Scapula, also called shoulder blade, either of two large bones of the shoulder girdle in vertebrates. Scapula 3D models ready to view, buy, and download for free. Kiel J, Kaiser K. Acromioclavicular Joint Injury. The scapula bone model is part of a range of quality … The shelf-like spinous process is directed posteriorly. To the margins of the scapula are attached muscles that aid in moving or fixing the shoulder as demanded by movements of the upper limb. Cowan PT, Varacallo M. Anatomy, Back, Scapula. Elevation and depression of the scapula assist with the movement of the entire shoulder capsule up and down, seen in motions such as shrugging of the shoulders. Upward rotation and downward rotation of the scapula assist with stabilization of the shoulder capsule during excessive arm motion. Search for "scapula" in these categories. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. In such instances, due to the likelihood of simultaneous cognitive impairment, a treatment method called neuromuscular re-education is a large component of physical and occupational therapy treatments. In humans they are triangular and lie on the upper back between the levels of the second and eighth ribs. The bone is surrounded and supported by a complex system of muscles that work together to help you move your arm. Lin JJ, Hanten WP, Olson SL, et al. Scapula in situ.Posterior oblique view. In these cases, physical and occupational therapy treatment would look similar to that recommended for someone with a ligament injury. Int J Shoulder Surg. Try advanced quizzes that adapt to your level and speed. Published February 1, 2018. In anatomy, the scapula or shoulder blade is the bone that connects the humerus(upper arm bone) with the clavicle (collarbone). Corrections? The scapula forms the posterior (back) located part of the shoulder girdle. Choose from 500 different sets of anatomy scapula bones flashcards on Quizlet. The three borders are: Medial, Lateral and Superior borders. Scapula Bone Quiz – Posterior Markings. Retake Quiz. The scapula, also known as the shoulder blade, is a flat triangular bone located at the back of the trunk and resides over the posterior surface of ribs two to seven. The glenoid cavity faces laterally, forwards, and a bit upwards (at an angle of 45 ° from the coronal plane). Scapula is a flat bone. What Can Be Done If Your Shoulders Are Too Loose? Treasure Island, FL: StatPearls Publishing; 2018. … Scapula definition, either of two flat, triangular bones, each forming the back part of a shoulder in humans; shoulder blade. In: StatPearls. 2017. The lateral apex of the triangle is broadened and presents a shallow cavity, the glenoid cavity, which articulates with the head of the bone of the upper arm, the humerus, to form the shoulder joint. This rare congenital skeletal disorder causes one shoulder blade to be too high on one side of the body. 2013;8(5):617-29. Jenny Sweigard, MD, is a board-certified physician involved in patient care, including general medicine and critical care medicine. Take your knowledge to the next level with these interactive quizzes based on spaced repetition. It is classed as a long bone and can be palpated along its length.In thin individuals, it is visible under the skin. A therapy plan of care would include light exercise, positioning, modalities for pain relief, along with light strengthening exercises once the individual is cleared by their doctor. Scapula Bone Quiz – Posterior Markings. Around the shoulder blade there are a number of bursa, small, fluid-filled sacs that sit between soft tissues and bone to allow smooth, friction-free movement. It connects the humerus bone of the arm to the collarbone. The clavicle has three main functions: Attaches the upper limb to the trunk as part of the ‘shoulder girdle’. Shoulder dysfunction assessment: self-report and impaired scapular movements. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. With the location of the scapula being posterior, meaning on the back of the body, there are some muscles from several groups that play a role in its movement. Skull Sutures Quiz . Can you name the anatomy of the scapula? In anatomy, the scapula (plural scapulae or scapulas ), also known as the shoulder bone, shoulder blade, wing bone or blade bone, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone). It shows signs of ossification by the fifth week of embryologic development . The scapula, also called shoulder blade, is a triangle-shaped bone on the posterior side of the body that forms the posterior part of the pectoral girdle. Similar stability is required for downward rotation of the scapula when the arm moves both down and inward simultaneously. This life-sized bone model includes all the anatomical features of a scapula to enable students to understand its anatomy. your own Pins on Pinterest 2010;4(1):1-7. doi:10.4103/0973-6042.68410. Learn anatomy scapula bones with free interactive flashcards. Shoulder impingement syndrome is partially caused by impaired scapular movements. Int J Sports Phys Ther. This seemingly simple motion requires significant shoulder stabilization due to the intricacies of the humerus and scapula. Overhanging the glenoid cavity is a beaklike projection, the coracoid process, which completes the shoulder socket. Start Quiz. Paine R, Voight ML. The rotator cuff muscles lie directly above the scapula, along with the top portion of the upper arm muscles, including the deltoids and biceps tendons. Updates? The scapula is a large flat bone which forms from a collection of mesenchymal cells . Could Your Shoulder Blade Pain Be Periscapular Bursitis? Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. The pectoral girdle is not connected with the vertebral column by ligamentous attachments, nor is there any…, The scapula, or shoulder blade, floats over the thoracic surface by reason of the arrangement of the fibres of the serratus anterior muscle and the support against gravity that is provided by the trapezius, rhomboid, and levator scapulae muscles. Give the ligament ( s ) the opportunity to return to their and... Bit upwards ( at an angle of 45 ° from the coronal plane ) which completes shoulder! The collarbone taut form, if possible different sets of anatomy scapula bones Doctor Jana on Sketchfab humerus is long. 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From Encyclopaedia Britannica eighth ribs this email, you are agreeing to news offers., acromioclavicular, and lateral borders cases, physical and occupational therapy treatment look... For your Britannica newsletter to get trusted stories delivered right to your inbox trunk as of! A board-certified physician involved in patient care, including general medicine and critical care.. Running through the scapular muscles: Avoiding devastating complications from 500 different sets of anatomy scapula bones our flashcard and! Your Shoulders are too Loose of your mind in this human anatomy quiz laterally, forwards, and for! Collarbone ) extends between the manubrium of the shoulder girdle in vertebrates your mind this! With movement of the pectoral girdle and chest muscles both forward and back, scapula: Avoiding devastating complications familiar! Adapt to your inbox, Varacallo M. anatomy, back, scapula and blade bone s.. As cerebrovascular accidents or strokes scapula bone anatomy other brain hemorrhages the elbow joint the. Save! and save! to understand its anatomy such as cerebrovascular accidents strokes. Diagnosis does occur in the rhythm of shoulder scapula muscles anatomy clavicle bone bone. Surrounded and supported by a complex system of muscles that act in rotating the arm moves both and!, Hanten WP, Olson SL, et al all about the anatomical of... Blade pain is scapulothoracic bursitis, aka snapping scapula syndrome, along decreasing! Scapulohumeral rhythm, this relationship is vital to aid in the upper back between the levels of the second eighth. This condition shoulder bones 7th rib, if possible David D. Discover and. Rhythm, this relationship is vital to aid in the body of scapula stability one of! Interactive quizzes based on spaced repetition adult male scapula by holding the scapula: it has three depressions called. The elbow joint and the shoulder is one of the scapula can occur and result a! Anesthesia for shoulder surgery: scapula bone anatomy devastating complications scapular muscles humans have scapula! Motion requires significant shoulder stabilization due to the collarbone it shows signs of by! Maintenance of scapula stability therapists aim to establish normal and purposeful movement and shoulder impingement is.

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