Week 3 Lecture 4

Question 1

Interosseous

Answer 1

a strong tissue that holds the ulna and the radius together

Question 2

What are the Carpal bones in the wrist? (8) Wrist Osteology

Answer 2

So Long To Pinky, Here Comes the Thumb

Scaphoid: boat
Lunate: crescent
Pisiform: pea
Hamate: hook
Capitate: head-shaped
Trapezoid: quadrilateral
Trapezium: table

Question 3

What are the bones of the hand? Hand Osteology

Answer 3

Carpals
Metacarpals (1-5)
Proximal Phalages (1-5)
Intermediate Phalanges (2-5)
Distal Phalanges (1-5)

Question 4

What are the types of joints in the upper arm?

Answer 4

Elbow Joint, Radioulnar Joint, Radiocarpal Joint, Metacarpophalangeal (MP) joints: Interphalangeal (IP) Joints (proximal and distal)

Question 5

Do the metacarpophalangeal abduction and adduction using your hands?

Answer 5

.

Question 6

Do the flexion and extension (metacarpophalangeal and interphalangeal joints)?

Answer 6

.

Question 7

What are the 3 layers of the forearm ?

Answer 7

Superficial, Intermediate, Deep

Question 8

What are the muscles in the superficial layer?

Answer 8

Pronator Teres, Flexor Carpi Radialis, Palmaris Longus, Flexor Carpi Ulnaris

Question 9

What is the function of the Pronator Teres?

Answer 9

Pronation and elbow flexion

Question 10

Pronator Teres Orgin?

Answer 10

Medical epicondyle of humerus

Question 11

Pronator Teres Insertion

Answer 11

Middle lateral surface of radius

Question 12

Flexor Carpi Radialis Function

Answer 12

Wrist Flexion and abduction (radial deviation)

Question 13

Flexor Carpi Radialis Origin

Answer 13

Medial epicondyle

Question 14

Flexor Carpi Radialis Insertion:

Answer 14

Base of 2nd metacarpal

Question 15

Palmaris Longus Function

Answer 15

Tightens Palmar aponurosis and flexes wrist
- vestigial structure

Question 16

Palmaris Longus Origin

Answer 16

Medial Epicondyle of Humerus

Question 17

Palmaris Longus Insertion

Answer 17

Distal half of flexor retinaculum and palmar aponeurosis

Question 18

Flexor Carpi Ulnaris Function

Answer 18

Wrist Flexion and adduction (ulnar deviation)

Question 19

Flexor Carpi Ulnaris Origin

Answer 19

CFO: Medial Epicondyle of Humerus

Question 20

Flexor Carpi Ulnaris Insertion

Answer 20

Pisiform, Hamate, 5th metacarpal

Question 21

Flexor Digitorium Superficialis Function

Answer 21

Flexion of phlanges at the proximal IP joint and the MP joint

Question 22

Flexor Digitorium Superficialis Origin

Answer 22

Humero-ulnar division: CFO: medial epicondyle, coronoid process of ulnar, ulnar collateral ligament
Radial division: proximal half of anterior border of radius

Question 23

Flexor Digitorum superficialis Insertion

Answer 23

Bodies of middle phalanges 2-5
* it forks and does not go to tips or fingers

Question 24

Deep Layer Muscles

Answer 24

Flexor Digitorium Profundus, Flexor Pollicus Longus, Pronator Quadratus

Question 25

Flexor Digitorum Profundus Function

Answer 25

Flexion of the phalanges at the Metacarpophalangeal joint and proximal and distal interphalangeal joints

Question 26

Flexor Digitorum Profundus Origin

Answer 26

Proximal 3/4 of medial and anteriro surface of ulna and the interosseus membrane

Question 27

Flexor Digitorum Profundus Insertion

Answer 27

Bases of the distal phalanges of digits 2-5

Question 28

Flexor Pollicis Longus Function

Answer 28

Flexion of the thumb

Question 29

Flexor Pollicis Longus Origin

Answer 29

Anterior surface of radius and adjacent interosseous membrane

Question 30

Flexor Pollicis Longus Insertion

Answer 30

Bases of distal phalanx of thumb

Question 31

Pronator Quadratus Function

Answer 31

Pronates forearm, deep fibers bind radius and ulna together

Question 32

Pronator Quadratus Origin

Answer 32

Distal 1/4 of anterior surface of radius

Question 33

3 wrist flexors:

Answer 33

Flexor carpi radialis, Palmaris Longus, Flexor Carpi Ulnaris

Question 34

3 finger flexors

Answer 34

Flexor Digitorum Superficialis, Flexor Digitorum Profoundus, Flexor Pollicis Longus

Question 35

2 Pronators

Answer 35

Protantor Quadratus, Protonator Teres

Question 36

Median Nerve (6.5)

Answer 36

Protonator Teres, Palmaris Longus, Flexor Carpi Radialis, Flexor Digitorum Superficialis, Flor Pollicus Longus, Pronator Quadratus, Flexor Digitorum Profundus

Question 37

Ulnar Nerve

Answer 37

Flexor Carpi Ulnaris, Flexor Digitorum Profundus

Question 38

What is the Carpal Tunnel?

Answer 38

A space in the wrist where tendons and nerves pass through. Narrow Pathway found on the anterior portion of the wrist * ulnar nerve does not go through here

Question 39

What is the Flexor Retinaculum?

Answer 39

A band of tissue that covers the carpal tunnel and keeps the tendons in place. * responsible for holding the tendons of the Flexor Digitorum Superficialis and Flexor Digitorum Profundus

Question 40

Carpal Tunnel Syndrome

Answer 40

Inflammation of tendons may cause median nerve compression and irritation