Podcast
Questions and Answers
What are the names of the two joints that make up the shoulder?
What are the names of the two joints that make up the shoulder?
- Scapulohumeral joint and Acromial joint
- Humeral joint and Glenoid joint
- Acromioclavicular joint and Glenohumeral joint (correct)
- Humeroulnar joint and Shoulder joint
Which muscle is NOT part of the rotator cuff?
Which muscle is NOT part of the rotator cuff?
- Supraspinatus
- Subscapularis
- Teres minor
- Pectoralis major (correct)
What is the function of the labrum in the shoulder joint?
What is the function of the labrum in the shoulder joint?
- It strengthens the ligaments surrounding the joint
- It connects the humerus to the scapula
- It lubricates the joint through fluid
- It creates a deeper socket for the humeral head (correct)
What role do tendons play in muscle movement?
What role do tendons play in muscle movement?
What surrounds the shoulder joint and serves to lubricate it?
What surrounds the shoulder joint and serves to lubricate it?
Flashcards
Acromioclavicular joint
Acromioclavicular joint
The joint where the acromion (part of the shoulder blade) and the clavicle (collarbone) meet.
Glenohumeral joint
Glenohumeral joint
The joint where the humeral head (ball) fits into the glenoid (socket).
Rotator cuff
Rotator cuff
A group of four muscles (supraspinatus, infraspinatus, teres minor, subscapularis) that connect the humerus to the scapula, responsible for shoulder stability and rotation.
Tendon
Tendon
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Ligament
Ligament
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Study Notes
Shoulder Anatomy
- The shoulder has two joints: the acromioclavicular joint and the glenohumeral joint.
- The acromioclavicular joint connects the acromion (part of the scapula) and the clavicle.
- The glenohumeral joint connects the humeral head (ball) to the glenoid (socket).
- The rotator cuff consists of four muscles: supraspinatus, infraspinatus, teres minor, and subscapularis.
- These muscles' tendons connect the humerus to the scapula.
- Muscles move bones by pulling on tendons.
- The rotator cuff muscles stabilize the humerus in the glenoid socket.
- The glenoid (socket) is shallow and flat.
- The glenoid labrum, a soft tissue, deepens the socket and helps mold it to the humeral head.
- The joint capsule surrounds the shoulder joint.
- The joint capsule is a fluid-filled sac that lubricates the joint and has ligaments that connect bones.
- Ligaments are soft tissues connecting bones.
- Shoulder injuries can affect any part of the shoulder complex.
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Description
Test your knowledge of the anatomy of the shoulder, including its joints and muscles. This quiz covers the acromioclavicular and glenohumeral joints, the rotator cuff, and the function of various shoulder structures. Challenge yourself to understand how these elements work together to facilitate movement and stability in the shoulder region.
