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Flashcards in wednesday lecture Deck (51):
1

Radiocarpal joint

-distal radius with the scaphoid, lunate and TFCC
-Condyloid, synovial joint
-All motions (Flexion, Extension, Radial and Ulnar deviation)

2

Intercarpal joint

-plane synovial joint
-between the two rows of carpal bones
-one third of wrist extension occurs here, half of wrist flexion occurs here

3

Ligaments of the wrist joint

-anterior and posterior ligament
-collateral ligament (Ulnar and Radial)

4

The ulnar and radial collateral ligament of the wrist

-ulnar collateral: attaches to the ulnar styloid process and triquetrum
-radial collateral: attaches to radial styloid process to scaphoid

5

What is ulnar deviation limited by?

Radial collateral ligament

6

What is radial deviation limit by?

Ulnar collateral ligament

7

Ligaments of the midcarpal joint

-anterior and posterior
-interosseous

8

Antebrachial fasica

-posterior thickening (Extensor retinaculum)
-anterior thickening (Flexor Retinaculum and palmar fascia)

9

Fracture of the scaphoid

-from a fall on an outstretched hand
-The blood supply to this bone is bad (decreased) so it takes longer to heal

10

Colles fracture

-"dinner fork deformity"
-fracture of the distal radius with posterior displacement of the fragment

11

function of the wrist

provide stable base for the hand

12

what 9 tendons are in the carpal tunnel? what nerve?

-Flexor Pollici Longus (1)
-Flexor Digitorum Superificalis (4)
-Flexor Digitorum Profundus (4)
-Median nerve

13

Proximal row of carpals:

Scaphoid, Lunate, Triquetrum, Pisiform

14

Distal Row of carpals:

Trapezuim, Trapezoid, Capitate, Hamate

15

Phalanges Parts

Distal, Middle and Proximal

16

Metacarpal parts

head, shart and base
(head is by the base of the phalanges

17

Superifical layer of the flexors

Pronator Teres
Flexor Carpi Radials
Palmaris Longus
Flexor Carpi Ulnaris

18

Pronator Teres origin

Coronoid Process of Ulna
Medial epicondly of humerus

19

Pronator Teres insertion

lateral surface of the radius

20

Pronator teres innervation

Median Nerve

21

Pronator teres action

pronates and flexes forearm

22

Flexor Carpi Radialis origin

Medial epicondyle of the humerus

23

Flexor carpi radialis insertion

base of 2nd metacarpal

24

flexor carpi radialis innervation

median nerve

25

flexor carpi radialis action

flexes and abducts the wrist

26

palmaris longus origin

medial epicondyle of the humerus
-not everyone has this muscle

27

Palmaris longus insertion

Palmar aponeurosis

28

Palmaris longus innervation

Median Nerve

29

Palmaris longus action

flexes hand at wrist

30

Intermediate layer of the flexors

-anterior side
-flexor digitorum superficials

31

Flexor Digitorum Superficials Origin

Medial Epicondyle of humerus and coronoid process of ulna

32

Flexor Digitorum Superficial Insertion

Shafts of middle phalanges of medial four digits

33

Flexor Digitorum Superficials innervation

Median Nerve

34

Flexor Digitorum Supericials action

Flexes wrist joint

35

Deep layer of the flexors

Flexor digitorum profundus
Flexor Pollicus Longus
Pronator Quadratus

36

Flexor Digitorum profundus origin

Promixal three quarters of medial surface of ulna and interosseous membrane

37

Flexor Digitorum profundus insertion

bases of the distal phalanges of 2nd, 3rd, 4th and 5th digit

38

Flexor Digitorum profundus innervation

Two parts:
Medial part: Ulnar Nerve
Lateral part: Median Nerve

39

Flexor Digitorum profundus action

-flexes wrist joint
-flexes distal interphalangeal joints of digit 2.3.4.5

40

Flexor Pollicis longus origin

anterior surface of radius and interosseous membrane

41

Flexor Pollicis longus insertion

base of distal phalanx of thumb

42

Flexor Pollicis longus innervaton

anterior interosseous nerve from medial nerve

43

Flexor Pollicis longus action

-flexes wrist
-flexes metacarpophalangeal and interpharangeal joint of thumb

44

Pronator quadratus origin

distal quarter of anterior surface of ulna

45

pronator quadratus insertion

distal quarter of anterior surface of radius

46

Pronator quadratus innervation

anterior interosseous nerve from medial nerve

47

pronator quadratus action

pronates the forearm, deep fibers bind radius and ulna together

48

Flexor carpi ulnaris origin

Olecranion and medial border of the ulna

49

Flexor carpi ulnaris insertion

Pisiform
Hook of the hamate
5th metacarpal

50

Flexor carpi ulnaris innervation

Ulnar nerve

51

Flexor carpi ulnaris action

Ulnar deviation
Flexes the wrist