Upper Limb Muscles Overview - Medium

<p>Flexor pollicis longus (B)</p> Signup and view all the answers

<p>Extensor retinaculum (A)</p> Signup and view all the answers

<p>Abduction and upward rotation of the scapula (D)</p> Signup and view all the answers

<p>Rhomboid major (C)</p> Signup and view all the answers

<p>Abduction of the glenohumeral joint (A)</p> Signup and view all the answers

<p>Levator scapulae (C)</p> Signup and view all the answers

<p>Depression and ventral tilt (B)</p> Signup and view all the answers

<p>Adduction and downward rotation of the scapula (C)</p> Signup and view all the answers

<p>Clavicle, acromion process, and scapula spine (A)</p> Signup and view all the answers

<p>Serratus anterior (B)</p> Signup and view all the answers

<p>Latissimus dorsi (A)</p> Signup and view all the answers

<p>Adduction of the wrist (A)</p> Signup and view all the answers

<p>Flexor digitorum superficialis (A)</p> Signup and view all the answers

<p>Pronation and flexion of the arm (A)</p> Signup and view all the answers

<p>Medial epicondyle of the humerus (C)</p> Signup and view all the answers

<p>Transverse carpal ligament (D)</p> Signup and view all the answers

<p>Flexor digitorum superficialis (A)</p> Signup and view all the answers

The serratus anterior muscle originates from the first to ninth ribs.

The serratus anterior muscle inserts into the medial border of the scapula.

The trapezius muscle has three parts: descending, transverse, and ascending.

The trapezius muscle originates from the occipital bone and spinous processes of C7 to T12.

The deltoid muscle inserts into the deltoid tuberosity of the humerus.

Pectoralis minor originates from ribs 2-5.

The levator scapulae elevates and downward rotates the scapula.

Rhomboids (minor and major) insert into the medial border of the scapula.

The latissimus dorsi muscle performs external rotation, extension, and adduction of the glenohumeral joint, and also scapular depression.

The supinator muscle and biceps brachii are the motor muscles responsible for supination.

Pronator quadratus and pronator teres are the motor muscles of pronation.

Connective tissue band that holds the tendons of flexor muscles on the palm.

Originates from the medial epicondyle of the humerus (part of the common flexor attachment tendon) and performs pronation and flexion of the arm.

Flexes and abducts the wrist, inserting at the base of the second metacarpal bone.

Flexes the middle phalanges at the proximal interphalangeal joint, and also flexes the proximal phalanges at the metacarpophalangeal joint.

Flexes and adducts the wrist, attaching to the pisiform, hook of the hamate, and fifth metacarpal bones.

The flexor digitorum profundus muscle flexes the distal interphalangeal (DIP) joint of the fingers.

The flexor pollicis longus muscle flexes the distal phalanx of the thumb.

The pronator quadratus muscle pronates the forearm, making the palm face downwards.

The extensor retinaculum holds the extensor tendons in place on the dorsal (back) side of the wrist.

Extensors that insert into the radius are primarily abductors (moving away from the midline), while those that insert into the ulna are primarily adductors (moving towards the midline).