Anatomy - Upper Limb Intro Flashcards Preview

MBBS - Year 1 > Anatomy - Upper Limb Intro > Flashcards

Flashcards in Anatomy - Upper Limb Intro Deck (38)
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1
Q

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

A

By a girdle

2
Q

Bones making up pelvic girdle

A

Innominate bones:
Ilium
Ischium
Pubis

3
Q

Bones making up shoulder girdle

A

Scapula

Clavicle

4
Q

What allows the shoulder girdle to move freely

A

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

5
Q

Gleno-humeral joint

A

Articulation of humeral head and glenoid fossa of the scapula

6
Q

Similarities between hip and shoulder joint

A

Ball and socket synovial joints

7
Q

Similarities between knee and elbow joint

A

Both huge joints - allow flexion and extension

Both supported by collateral ligaments

8
Q

Main difference between foot and hand

A

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

9
Q

Differences between knee and elbow joint

A

No intracapsular ligaments or menisci in elbow

10
Q

Depth of acetabulum vs glenoid fossa

A

Deep vs shallow

11
Q

Strength of hip vs shoulder ligaments

A

Strong vs weak

12
Q

What is the shoulder joint adapted for

A

Mobility

13
Q

Ulnaris

A

On the ulnar (medial) aspect of the forearm

14
Q

Radialis

A

On the radial (lateral) aspect of the forearm

15
Q

Digitorum

A

Of the digits

16
Q

Carpi

A

Of the wrist

17
Q

Brachii

A

In the arm

18
Q

Superficial

A

Closer to the skin

19
Q

Profundus

A

Deep inside the body

20
Q

Pollicis

A

Of the thumb (pollux)

21
Q

Muscle compartments of the upper limb

A
Deltoid 
Anterior arm 
Hands 
Anterior Chest 
Anterior Forearm 
Posterior forearm
Posterior arm 
Back
22
Q

Function of muscles in deltoid compartment

A

Abduction of shoulder

23
Q

Nerve supply of deltoid compartment

A

Axillary

24
Q

Function of muscles in anterior arm compartment

A

Flexion of elbow

25
Q

Nerve supply of anterior arm compartment

A

Musculocutaneous nerve

26
Q

Function of muscles in hand compartment

A

Abduction of fingers

Adduction of fingers

27
Q

Nerve supply of hand compartment

A

Ulnar/ median nerve

28
Q

Function of muscles in anterior forearm compartment

A

Flexion of wrist
Flexion of fingers
Pronation

29
Q

Nerve supply of anterior forearm

A

Median/ ulnar nerve

30
Q

Function of muscles in anterior chest compartment

A

Flexion of shoulder

31
Q

Function of muscles in posterior forearm compartment

A

Extension of wrist
Extension of finger
Supination

32
Q

Nerve supply of anterior chest compartment

A

Pectoral nerves

33
Q

Nerve supply of posterior forearm compartment

A

Radial nerve

34
Q

Function of muscles in back compartment

A

Extension of shoulder

Shoulder girdle actions

35
Q

Nerve supply of back compartment

A

Misc nerves

36
Q

Function of muscles in posterior arm compartment

A

Extension of elbow

37
Q

Nerve supply in posterior arm compartment

A

Radial nerve

38
Q

What can reduce distal motor function

A

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

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