Anatomy (Anterior Forearm - 11/5) Flashcards Preview

Skin MS: Week 2 > Anatomy (Anterior Forearm - 11/5) > Flashcards

Flashcards in Anatomy (Anterior Forearm - 11/5) Deck (39)
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1

Head of Radius articulates with _____ of ulna

Radial notch

2

Head of radius articulates with ------ of humerus

capitulum

3

the _________ connects the radius and ulna

Interosseous membrane

4

The ______ process of the ulna articulates with the _______ of the humerus

Olecranon process of ulna with trochlea of humerus

5

Styloid process of radius articulates with _______

Scaphoid and lunate carpal bones

6

Ulna styloid process with _____

articular disc

7

Lateral cutaneous antebrachial nerve

Sensory nerve, continuation of musculocutaneous nerve (that supplied flexors)
Supplies lateral anterior/posterior of forearm

8

Superficial branch of radial nerve

Supplies posterior arm, forearm and back of hand

9

Median nerve

3.5 digits (thumb) of palm of hand (flexors)

10

Ulnar nerve

Little finger + half next

11

Medial cutaneous nerve of forearm (antebrachial)

Arises from posterior cord in brachial plexus
Anterior arm + medial part of forearm

12

Brachioradialis

Lateral supracondylar ridge of humerus --> radius (proximal to styloid process)
Radial nerve
Forearm flexor

13

5 superficial flexors in forearm

Pronator teres, Flexor carpi radialis, palmaris longus, flexor digitorum superficialis, flexor carpi ulnaris

All originate from medial epicondyle
All innervated by median nerve EXCEPT FCU (ulnar nerve)

14

Pronator Teres

Medial epicondyle humerus & ulnar head --> radius

Pronate and flex forearm
Median nerve

15

Flexor carpi radialis

Medial epicondyle humerus --> base of 2nd metacarpal

Flex and abduct hand (pull towards thumb)
Median nerve

16

Palmaris Longus

Medial epicondyle humerus --> palmar aponeurosis
Flex hand at wrist
Median nerve

17

Flexor digitorum superficialis

Medial epicondyle humerus, coronoid process of ulna, radius --> middle phalange of medial 4 digits
Note: deeper than other muscles of superficial group
Flex phalanges and wrist
Median nerve

18

Flexor carpi ulnaris

Medial epicondyle humerus --> base of 5th metacarpal
Flex and ulnar deviation (adduct) hand
Ulnar nerve

19

Which tendons of 5 superficial flexors pass through carpal tunnel? Which nerve?

Flexor digitorum superficialis (4), median nerve

20

3 muscles attached to radius and ulna (deep group)

Flexor digitorum profundus, flexor pollicis longus, pronator quadratus

Median nerve innervates all but ulnar half of flexor digitorum profundus (ulnar nerve)

21

Flexor digitorum profundus

Proximal anterior ulna/interosseous membrane --> through carpal tunnel --> distal phalanx of 2-5
Median nerve for 2 and 3, ulnar 4 and 5
Flex 2-5

22

Flexor pollicis longus

Anterior radial surface/interosseous membrane---> carpal tunnel --> terminal phalanx of thumb

Anterior interosseous nerve (branch of median nerve)

Flex thumb

23

Pronator quadratus

Distal radius/ulna
Anterior osseous nerve (median nerve)
Pronates radius

24

Anterior interosseous nerve

Branch of median nerve
Supplies radial half of FDP, FPL and pronator quadratus

25

Median nerve supplies ________ of forearm except _______

Median nerve supplies ALL flexor muscles of forearm except Flexor carpi ulnaris (ulnar nerve) and ulnar half of Flexor digitorum produndus (ulnar nerve)

26

Locations of median nerve

Deep to flexor digitorum superficialis, above FDP

27

Pronator syndrome

Compression of median nerve by pronator teres muscle
After repetitive elbow motions
Chronic aching sensation localized to forearm with pain occasionally radiating into elbow

28

Ulnar nerve

Medial cord --> ulnar nerve --> located deep to flexor carpi ulnaris

Innervates flexor carpi ulnaris and ulnar half of flexor digitorum profundus

29

Brachial artery divides in _________ to _____ and _____ arteries

BA divides at cubital fossa into ulnar and radial arteries

30

Radial artery

From brachial artery, goes to radial side and runs under brachioradialis with superficial branch of radial nerve

Common site to take pulse