wednesday lecture

Question 1

Radiocarpal joint

Answer 1

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

Question 2

Intercarpal joint

Answer 2

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

Question 3

Ligaments of the wrist joint

Answer 3

• anterior and posterior ligament

- collateral ligament (Ulnar and Radial)

Question 4

The ulnar and radial collateral ligament of the wrist

Answer 4

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

Question 5

What is ulnar deviation limited by?

Answer 5

Radial collateral ligament

Question 6

What is radial deviation limit by?

Answer 6

Ulnar collateral ligament

Question 7

Ligaments of the midcarpal joint

Answer 7

• anterior and posterior

- interosseous

Question 8

Antebrachial fasica

Answer 8

• posterior thickening (Extensor retinaculum)

- anterior thickening (Flexor Retinaculum and palmar fascia)

Question 9

Fracture of the scaphoid

Answer 9

• from a fall on an outstretched hand

- The blood supply to this bone is bad (decreased) so it takes longer to heal

Question 10

Colles fracture

Answer 10

• “dinner fork deformity”

- fracture of the distal radius with posterior displacement of the fragment

Question 11

function of the wrist

Answer 11

provide stable base for the hand

Question 12

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

Answer 12

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

Question 13

Proximal row of carpals:

Answer 13

Scaphoid, Lunate, Triquetrum, Pisiform

Question 14

Distal Row of carpals:

Answer 14

Trapezuim, Trapezoid, Capitate, Hamate

Question 15

Phalanges Parts

Answer 15

Distal, Middle and Proximal

Question 16

Metacarpal parts

Answer 16

head, shart and base

(head is by the base of the phalanges

Question 17

Superifical layer of the flexors

Answer 17

Pronator Teres
Flexor Carpi Radials
Palmaris Longus
Flexor Carpi Ulnaris

Question 18

Pronator Teres origin

Answer 18

Coronoid Process of Ulna

Medial epicondly of humerus

Question 19

Pronator Teres insertion

Answer 19

lateral surface of the radius

Question 20

Pronator teres innervation

Answer 20

Median Nerve

Question 21

Pronator teres action

Answer 21

pronates and flexes forearm

Question 22

Flexor Carpi Radialis origin

Answer 22

Medial epicondyle of the humerus

Question 23

Flexor carpi radialis insertion

Answer 23

base of 2nd metacarpal

Question 24

flexor carpi radialis innervation

Answer 24

median nerve

Question 25

flexor carpi radialis action

Answer 25

flexes and abducts the wrist

Question 26

palmaris longus origin

Answer 26

medial epicondyle of the humerus | -not everyone has this muscle

Question 27

Palmaris longus insertion

Answer 27

Palmar aponeurosis

Question 28

Palmaris longus innervation

Answer 28

Median Nerve

Question 29

Palmaris longus action

Answer 29

flexes hand at wrist

Question 30

Intermediate layer of the flexors

Answer 30

- anterior side | - flexor digitorum superficials

Question 31

Flexor Digitorum Superficials Origin

Answer 31

Medial Epicondyle of humerus and coronoid process of ulna

Question 32

Flexor Digitorum Superficial Insertion

Answer 32

Shafts of middle phalanges of medial four digits

Question 33

Flexor Digitorum Superficials innervation

Answer 33

Median Nerve

Question 34

Flexor Digitorum Supericials action

Answer 34

Flexes wrist joint

Question 35

Deep layer of the flexors

Answer 35

Flexor digitorum profundus Flexor Pollicus Longus Pronator Quadratus

Question 36

Flexor Digitorum profundus origin

Answer 36

Promixal three quarters of medial surface of ulna and interosseous membrane

Question 37

Flexor Digitorum profundus insertion

Answer 37

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

Question 38

Flexor Digitorum profundus innervation

Answer 38

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

Question 39

Flexor Digitorum profundus action

Answer 39

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

Question 40

Flexor Pollicis longus origin

Answer 40

anterior surface of radius and interosseous membrane

Question 41

Flexor Pollicis longus insertion

Answer 41

base of distal phalanx of thumb

Question 42

Flexor Pollicis longus innervaton

Answer 42

anterior interosseous nerve from medial nerve

Question 43

Flexor Pollicis longus action

Answer 43

- flexes wrist | - flexes metacarpophalangeal and interpharangeal joint of thumb

Question 44

Pronator quadratus origin

Answer 44

distal quarter of anterior surface of ulna

Question 45

pronator quadratus insertion

Answer 45

distal quarter of anterior surface of radius

Question 46

Pronator quadratus innervation

Answer 46

anterior interosseous nerve from medial nerve

Question 47

pronator quadratus action

Answer 47

pronates the forearm, deep fibers bind radius and ulna together

Question 48

Flexor carpi ulnaris origin

Answer 48

Olecranion and medial border of the ulna

Question 49

Flexor carpi ulnaris insertion

Answer 49

Pisiform Hook of the hamate 5th metacarpal

Question 50

Flexor carpi ulnaris innervation

Answer 50

Ulnar nerve

Question 51

Flexor carpi ulnaris action

Answer 51

Ulnar deviation | Flexes the wrist