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Skeletal Muscles

Appendicular Skeletal Muscles

QuestionAnswer
What are the 4 joints that make up the shoulder muscle? Scapulothoracic, glenohumeral, acromioclavicular, and sternoclavicular joints.
What are the 4 muscles that make up the scapulothoracic joint? Pectoralis minor, Serratus Anterior, Trapezius, and Levator Scapulae muscles.
Pectoralis Minor: Location and Motion? Location: Anterior thoracic cage Motion: Protracts and downwardly rotates- depresses Scapula
Serratus Anterior: Location and Motion? Location: Lateral thoracic cage Motion: Upward rotation, protraction, and depression of scapula.
Trapezius(upper, middle, lower): Location and Motion? Location: Superior/posterior thoracic cage Motion: Upper-upward rotation, elevation, and retraction of scapula Middle/ Lower- upward rotation, depression, and retraction of scapula.
Levator Scapulae: Location and Motion? Location: Posterior and lateral side of neck Motion: Elevates and abducts scapula
Serratus Anterior: Location and Motion? Location: Lateral thoracic cage Motion: Upward rotation, protraction, and depression of scapula.
Trapezius(upper, middle, lower): Location and Motion? Location: Superior/posterior thoracic cage Motion: Upper-upward rotation, elevation, and retraction of scapula Middle/ Lower- upward rotation, depression, and retraction of scapula.
Levator Scapulae: Location and Motion? Location: Posterior and lateral side of neck Motion: Elevates and abducts scapula
What are the 5 muscles the make up the Glenohumeral joint? Deltoid, Coracobrachialis, Pectoralis Major, Latissimus Dorsi, and Teres Major.
Deltoid: Location, Motion, and Innervation? Location: Superior and Posterior Brachium(upper arm) Motion: Arm Abduction Innervation: Axillary Nerve
Coracobrachialis: Location, Motion, and Innervation? Location: Anterior brachium Motion: Flexor and Abductor Innervation: Musculocutaneous Nerve
Pectoralis Major: Location and Motion? Location: Anterior Thoracic Cage Motion: Adducts and Rotates arm
Latissimus Dorsi: Location and Motion? Location: Posterior Lumbar Region Motion: Extension, internal rotation, and adduction. (aids in rowing)
Teres Major: Location and Motion? Location: Posterior thoracic cage Motion: Extension, internal rotation, and adduction (aids in rowing).
What are the 4 scapular muscles that comprise the rotator cuff? Supraspinatus, Infraspinatus, Teres Minor, and Subscapularis.
The glenohumeral and scapulothoracic joints are involuntary movements. True of False? False
The sternoclavicular and acromioclavicular are involuntary movements. True or false? True
Together the rotator cuff muscles function to approximate the head of the _______ into the _____ fossa. Humerus , Glenoid
Supraspinatus: Location and Motion? Location: Supraspinous Fossa Motion: Abductors
Infraspinatus: Location and Motion? Location: Infraspinous Fossa Motion: External Rotator
Teres Minor: Location, Motion, and Innervation? Location: Posterior thoracic cage Motion: External Rotator Innervation: Axillary Nerve
Subscapularis: Location and Motion? Location: Anterior thoracic cage Motion: Internal Rotator
The humeroulnar and humeroradial joints are comprised of what 4 muscles? Biceps Brachii, Brachialis, Triceps Brachii, and Brachioradialis.
Biceps Brachii: Location, Motion, and Innervation? Location: Anterior brachium Motion: Elbow flexor and supinator of forearm Innervation: Musculocutaneous Nerve
Brachialis: Location, Motion, and Innervation? Location:Anterior brachium Motion: Elbow felxion Innervation: Musculocutaneous Nerve
Triceps Brachii: Location, Motion, and Innervation? Location:Posterior brachium Motion: Elbow Extensor and shoulder extension and adduction Innervation: Radial Nerve
Brachioradialis: Location, Motion, and Innervation? Location: Antibrachium Motion:Forearm supination and pronation/ elbow flexion Innervation: Radial nerve
Created by: Anniemal