Where does pronator teres attach?

Pronator quadratus muscle

Origins Distal anterior surface of ulna
Insertion Distal anterior surface of radius
Actions Proximal radioulnar joint: Forearm pronation
Innervation Median nerve (anterior interosseous nerve, C7, C8)
Blood supply Anterior interosseous artery

What are the attachments of the pronator quadratus?

Pronator quadratus muscle

Origins Distal anterior surface of ulna
Insertion Distal anterior surface of radius
Actions Proximal radioulnar joint: Forearm pronation
Innervation Median nerve (anterior interosseous nerve, C7, C8)
Blood supply Anterior interosseous artery


Where does the pronator flexor muscle group originate?

It mainly originated from the anterior edge of the sublime tubercle, while the upper part of ulnar head transitioned directly into the thickened joint capsule just anterior to the AOL.

What is the insertion of the flexor carpi ulnaris?

Flexor carpi ulnaris muscle

Origin Medial epicondyle of humerus, olecranon and posterior border of ulna
Insertion Pisiform bone, hamate bone, base of metacarpal bone 5
Action Wrist joint: Wrist flexion, wrist adduction
Innervation Ulnar nerve (C7-T1)
Blood Supply Posterior ulnar recurrent artery, ulnar artery


What passes between heads of pronator teres?

the median nerve

The pronator teres (PT) muscle is a forearm flexor with radial and ulnar heads. It is innervated by the median nerve (MN), which passes between these heads. Nerve entrapment, known as “PT syndrome”, may occur in this passage.

Where does flexor pollicis longus attach?

Flexor pollicis longus muscle

Origin Anterior surface of radius and interosseous membrane
Insertion Palmar surface of distal phalanx of thumb
Action Metacarpophalangeal and interphalangeal joint 1; Thumb flexion
Innervation Median nerve (anterior interosseous nerve C7, C8)

How do you test pronator teres and pronator quadratus?


Position she's going to turn her hand all the way over into a fully pronated. Position like so so again that action of pronation at the radial ulnar joints for the length.

What is the origin and insertion of flexor digitorum superficialis?

Based on its origin sites, flexor digitorum superficialis is divided into two heads; a humeroulnar head and radial head. Its large muscular belly courses distally towards the wrist, where it splits into four tendons and attaches to the middle phalanges of the second through fifth digits of the hand.

What is the origin and insertion of the flexor carpi radialis?

Flexor carpi radialis is a fusiform muscle located in the anterior forearm.



Flexor carpi radialis muscle.

Origin Medial epicondyle of humerus
Insertion Bases of metacarpal bones 2-3
Action Wrist joint: Wrist flexion, wrist abduction
Innervation Median nerve (C6, C7)
Blood supply Anterior/posterior recurrent ulnar artery, radial artery


What muscle attaches to the medial epicondyle?

The medial epicondyle gives attachment to the ulnar collateral ligament of elbow joint, to the pronator teres, and to a common tendon of origin (the common flexor tendon) of some of the flexor muscles of the forearm: the flexor carpi radialis, the flexor carpi ulnaris, the flexor digitorum superficialis, and the …

What artery supplies the pronator teres?

Ulnar artery

Pronator Teres
Origin Medial epicondyle of humerus and coronoid process of ulna
Action Pronates and flexes forearm (at elbow)
Innervation Median nerve (C6, C7)
Arterial Supply Ulnar artery, anterior recurrent ulnar artery

Does pronator teres pass through carpal tunnel?

Anatomy. The median nerve passes through the cubital fossa and passes between the two heads of pronator teres muscle into the forearm. It then runs between flexor digitorum superficialis and flexor digitorum profundus muscles and enters the hand through the carpal tunnel.

Where is the Palmaris longus muscle located?

forearm

The Palmaris longus (PL) muscle is a long, slender muscle which is usually present in the superficial volar compartment of the forearm, interposed between the Flexor Carpi Ulnaris and the Flexor Carpi Radialis muscles.

What is the proximal skeletal attachment of the palmaris longus?

The palmaris longus belongs to the anterior forearm flexor group in the human upper extremity. The muscle attaches proximally to the medial humeral epicondyle and distally to the palmar aponeurosis and flexor retinaculum.

What is the origin and insertion of the pronator teres?

Pronator teres is a fusiform muscle found in the anterior forearm.



Pronator teres muscle.

Origin Humeral head: medial supracondylar ridge of humerus Ulnar head: Coronoid process of ulna
Insertion Lateral surface of radius (distal to supinator)

Where is the extensor pollicis longus?

forearm

Extensor pollicis longus (EPL) is a long muscle located at the deep layer with extensor pollicis brevis, abductor pollicis longus, extensor indicis, and supinator muscle in the posterior compartment of the forearm.

Where does extensor digitorum insertion?

Extensor digitorum muscle

Origin Lateral epicondyle of humerus (common extensor tendon)
Insertion Extensor expansions of digits 2-5
Action Metacarpophalangeal / Interphalangeal joints 2-5: Finger extension
Innervation Posterior interosseous nerve (C7, C8)

What is the insertion of the extensor pollicis brevis?

Extensor pollicis brevis muscle

Origin Posterior surface of distal third of radius and interosseus membrane
Insertion Posterior aspect of base of proximal phalanx of thumb
Action Carpometacarpal and metacarpophalangeal joint 1: Thumb extension
Innervation Posterior interosseous nerve (C7, C8)