Page 3 (Forearm) Flashcards
Palmaris longus - insertion
Palmar aponeurosis
Palmaris longus - origin
Medial epicondyle of humerus
Palmaris longus - action
Flexes the wrist
Palmaris longus - innervation
Median nerve (C7, C8)
Flexor carpi ulnaris - origin - humeral head
Medial epicondyle of humerus
Flexor carpi ulnaris - ulnar head - origins (2)
Medial border of olecranon and proximal 2/3 of ulna
Flexor carpi ulnaris - insertions (3)
Pisiform, hook of hamate, and base of 5th metacarpal
Flexor carpi ulnaris - nerve
Ulnar nerve (C7, C8)
Flexor carpi ulnaris - actions (2)
Flex wrist, adducts hand (ulnar deviation)
Flexor digitorum superficialis - insertion
Shafts of the middle phalanges of digits 2-5
Flexor digitorum superficialis - origins (2)
Humeroulnar head - medial epicondyle of humerus
Radial head - middle 1/3 of radius
Flexor digitorum superficialis - action
Flexes proximal interphalangeal (PIP) joint
Flexor digitorum profundus - insertion
Base of the distal phalanx of digits 2-5
Flexor digitorium superficialis - innervation
Median nerve (C7, C8, T1)
Flexor digitorum profundis - origins (2)
Ulna and interosseous membrane
Flexor digitorum profundus - action
Flexes the distal interphalangael (DIP) joint
Flexor pollicis longus - insertion
Base of distal phalanx of thumb
Flexor digitorum profundus - innervation
- Lateral portion
- Medial portion
Lateral: anterior interosseous nerve (AIN, median; C8, T1)
Medial: ulnar nerve (C8, T1)
Flexor pollicis longus - origins (2)
Anterior surface of radius and interosseous membranes
Flexor pollicis longus - action
Flex interphalangael joint of thumb
Pronator quadratus - origin
Distal 1/4 of ulna
Flexor pollicis longus - innervation
Anterior interosseous nerve (AIN, median nerve) (C8, T1)
Pronator quadratus - action
Pronates the forearm
Pronator quadratus - insertion
Distal 1/4 of radius
Pronator quadratus - innervation
Anterior interosseous nerve (AIN; median nerve) (C8, T1)
Brachialradialis - insertion
Lateral side of distal end of radius
Brachioradialis - action
Flexes the elbow
Brachioradialis - innervation
Radial nerve (C5, C6, C7)
Brachioradialis - origin
Proximal 2/3 of lateral supracondylar ridge of humerus
Extensor carpi radialis longus - insertion
Base of second metacarpal bone
Extensor carpi radialis longus - actions (2)
Extends the wrists and abducts the hand (radial deviation)
Extensor carpi radialis longus - innervation
Deep radial nerve (C6, C7)
Extensor carpi radialis brevis - origin
Lateral supracondylar ridge of the humerus (Common extensor tendon)
Extensor carpi radialis longus - origin
Distal 1/3 of lateral supracondylar ridge of humerus
Extensor carpi radialis brevis - insertion
Base of third metacarpal bone
extensor carpi radialis brevis - innervation
Radial nerve (C7, C8)
Extensor carpi radialis brevis - actions (2)
Extends wrists and abducts hand (radial deviation)
Extensor digitorum - origin
Lateral epicondyle of humerus (common extensor tendon)
Extensor digitorum - insertion
Extensor expansion of middle and distal phalanges of 2-5
Extensor digitorum - action
Extends the MCP, PIP, and DIP joints of the 2nd - 5th digit
Extensor digitorum - innervation
Deep radial nerve (C7, C8)
Extensor digiti minimi - origin
Lateral epicondyle of the humerus (common extensor tendon)
Extensor digiti minimi - insertion
Extensor expansion of the 5th digit
Extensor digiti minimi - action
Extends the MCP, PIP, and DIP joints of the 5th digit
Extensor digiti minimi - innervation
Deep radial nerve (C7, C8)