Anatomy - Upper Limb Intro

Question 1

How are both the upper and lower limbs connected to the body

Answer 1

By a girdle

Question 2

Bones making up pelvic girdle

Answer 2

Innominate bones:
Ilium
Ischium
Pubis

Question 3

Bones making up shoulder girdle

Answer 3

Scapula

Clavicle

Question 4

What allows the shoulder girdle to move freely

Answer 4

Shoulder girdle is made of relatively delicate bones that only have one attachment to the body

Question 5

Gleno-humeral joint

Answer 5

Articulation of humeral head and glenoid fossa of the scapula

Question 6

Similarities between hip and shoulder joint

Answer 6

Ball and socket synovial joints

Question 7

Similarities between knee and elbow joint

Answer 7

Both huge joints - allow flexion and extension

Both supported by collateral ligaments

Question 8

Main difference between foot and hand

Answer 8

In the foot, all 5 digits lie next to each other w/ the same orientation. However, the 1st digit in the hand (thumb or pollux) is rotated 90 degrees to face the other digits - allows us to grip structures by posing our thumb and fingers

Question 9

Differences between knee and elbow joint

Answer 9

No intracapsular ligaments or menisci in elbow

Question 10

Depth of acetabulum vs glenoid fossa

Answer 10

Deep vs shallow

Question 11

Strength of hip vs shoulder ligaments

Answer 11

Strong vs weak

Question 12

What is the shoulder joint adapted for

Answer 12

Mobility

Question 13

Ulnaris

Answer 13

On the ulnar (medial) aspect of the forearm

Question 14

Radialis

Answer 14

On the radial (lateral) aspect of the forearm

Question 15

Digitorum

Answer 15

Of the digits

Question 16

Carpi

Answer 16

Of the wrist

Question 17

Brachii

Answer 17

In the arm

Question 18

Superficial

Answer 18

Closer to the skin

Question 19

Profundus

Answer 19

Deep inside the body

Question 20

Pollicis

Answer 20

Of the thumb (pollux)

Question 21

Muscle compartments of the upper limb

Answer 21

Deltoid 
Anterior arm 
Hands 
Anterior Chest 
Anterior Forearm 
Posterior forearm
Posterior arm 
Back

Question 22

Function of muscles in deltoid compartment

Answer 22

Abduction of shoulder

Question 23

Nerve supply of deltoid compartment

Answer 23

Axillary

Question 24

Function of muscles in anterior arm compartment

Answer 24

Flexion of elbow

Question 25

Nerve supply of anterior arm compartment

Answer 25

Musculocutaneous nerve

Question 26

Function of muscles in hand compartment

Answer 26

Abduction of fingers

Adduction of fingers

Question 27

Nerve supply of hand compartment

Answer 27

Ulnar/ median nerve

Question 28

Function of muscles in anterior forearm compartment

Answer 28

Flexion of wrist
Flexion of fingers
Pronation

Question 29

Nerve supply of anterior forearm

Answer 29

Median/ ulnar nerve

Question 30

Function of muscles in anterior chest compartment

Answer 30

Flexion of shoulder

Question 31

Function of muscles in posterior forearm compartment

Answer 31

Extension of wrist
Extension of finger
Supination

Question 32

Nerve supply of anterior chest compartment

Answer 32

Pectoral nerves

Question 33

Nerve supply of posterior forearm compartment

Answer 33

Radial nerve

Question 34

Function of muscles in back compartment

Answer 34

Extension of shoulder

Shoulder girdle actions

Question 35

Nerve supply of back compartment

Answer 35

Misc nerves

Question 36

Function of muscles in posterior arm compartment

Answer 36

Extension of elbow

Question 37

Nerve supply in posterior arm compartment

Answer 37

Radial nerve

Question 38

What can reduce distal motor function

Answer 38

Division of muscle belly
Division of muscle tendon
Pain of movement
Division of nerve innervating muscle