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BU Anatomy > Forearm and Wrist > Flashcards

Flashcards in Forearm and Wrist Deck (58):
1

Where does the axillary artery become the brachial artery?

Inferior border of teres major

2

Brachial artery produes a branch that is the deep artery of the arm?

Brachial profunda artery

3

The brachial artery divides again where?

Elbow region distal to the cubital fossa

4

At the elbow, the brachial artery divides into?

Ulnar and Radial artery

5

The ulnar artery divides further into?

Anterior and posterior interosseous arteries

6

Ulnar Artery goes on to supply what structure in the palm?

Superficial palmar arch

7

The superficial palmar arch produces what arteries?

Common palmar digital arteries

8

The common palmar digital arteries split into two what?

Proper palmar digital arteries - supply digits

9

Which artery supplies the DEEP palmar arch?

Radial artery

10

Name the 3 branches to the deep palmar arch?

Palmar metacarpal arteries
Princeps pollicis artery
Radialis indicis

11

Describe the Allen test for collateral circulation.

Occlude both radial and ulnar arteries at wrist and then test each side independently and observe rate of refill

12

Name the (3) branches of median n.

Anterior interosseous n.
Palmar cutaneous n.
Recurrent median n.

13

Name the (2) branches of the radial n.

Deep radial n.
Posterior interossesus n.

14

Name the muscles receiving innervation from the AIN?

Radial portion of FDP
Flexor Pollicis Longus
Pronator quadratus

15

What innervates the skin of the central palm?

Palmar cutaneous branch of the Median Nerve

16

Innervation of the thenar muscles?

Recurrent branch of the median n.

17

Where does the radial nerve divide?

Cubital fossa

18

Name the (2) divisions of the radial n.?

Deep radial N.
Superficial sensory N.

19

Name the muscles supplied by the deep radial N.?

Supinator
Extensor carpi radialis brevis

20

The posterior interosseous nerve is actually a continuation of which branch of the radial nerve?

The deep branch of the radial n.

21

Which spinal cord segments does Biceps Reflex Testing assess?

C5-C6

22

Name the proximal row of carpal bones? (Lat->Med)

Scaphoid, Lunate, Triquetrum, Pisiform

23

Name the distal row of carpal bones? (Med-> Lat)

Hamate, Capitate, Trapezoid and Trapezium

24

The pisiform carpal bone is only visible from which position of the hand?

The Palmar (anterior view)

25

Colles' Fracture is what type of radius fracture?

DORSAL displacement of distal fragment

26

What is the mechanism of injury for a Colles' fracture?

FOOSH

27

Smith fractures are what exactly?

PALMAR displacement of distal radius fragment

28

MOI of a Smith fracture?

Fall on dorsum of hand with wrist flexion

29

Name the articulations of the wrist joint (3)?

Radiocarpal, Midcarpal and Distal Radioulnar Joint

30

Which bones are involved in radiocarpal joint?

Radius and Scaphoid/Lunate

31

What type of joint is the radiocarpal joint?

Condyloid - biaxial
F/E and ADd/ABduction

32

Which bones are involved in the midcarpal joint?

Both proximal and distal row carpals

33

What type joint is the midcarpal joint?

Plane - synovial joint
Gliding motions

34

Classify the distal radioulnar joint?

Pivot type -synovial joint
Sup/Pronation

35

Describe the functions of the retinaculums.

Prevent bowstringing of tendons

36

Location of the flexor retinaculum?

On the anterior side above the carpal arch

37

Locate the radial collateral ligament.

On the volar surface;
protects against excessive ulnar deviation

38

Locate the ulnar collateral ligament.

On the dorsal surface;
protects against excessive radial deviation

39

Name the structures contributing to the carpal tunnel.

Flexor retinaculum - forms the roof
Carpal arch forms the floor

40

Contents of the carpal tunnel include...?

Median N.
Tendons of FDP
Tendons of FDS
Tendon of FPL

41

F/E and ABduction/ADduction occur at which joints?

Radiocarpal and Midcarpal joints

42

Name 3 extensors of the wrist?

Extensor Carpi Ulnaris
Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis

43

Name 2 flexors of the wrist?

Flexor carpi ulnaris
Flexor carpi radialis

44

What is the common proximal attachment for extensors of the wrist?

Lateral epicondyle of the humerus

45

Name the distal attachment for ECRL?

Base of 2nd Metacarpal

46

Name the distal attachment for ECRB?

Base of 3rd Metacarpal

47

Name the distal attachment for ECU?

Base of 5th Metacarpal

48

Innervation of ECU?

Posterior Interosseous Nerve

49

Innervation of ECRB?

Deep radial N.

50

Innervation of ECRL?

Radial N.

51

Lateral epicondylitis

Repeated forceful flexion/extension strains attachment of common extensor tendon

52

Flexors of the wrist share which common proximal attachment?

Medial epicondyle of humerus

53

Distal attachment of FCR?

Base of 2nd Metacarpal

54

Distal attachment of FCU?

Base of 5th Metacarpal and Pisiform

55

Distal attachment of Palmaris Longus?

Palmar Aponeurosis/Fascia

56

Innervation of FCR and Palmaris Longus?

Median N.

57

Innervation of FCU?

Ulnar N.

58

Dupuytren's Contracture

benign, slowly progressive condition causing contracture of palmar fascia