Musculoskeletal 2

Question 1

What are the boundary of the axilla?

Answer 1

The boundaries are the clavicle and the lower border of the pectoralis major and teres major.

Question 2

What does the axilla contain?

Answer 2

Brachial plexus, axillary artery, fat and lymph nodes

Question 3

What are the two compartments of the arm and what do they do?

Answer 3

Anterior and posterior, flexion and extension.

Question 4

What passes through the cubital fossa?

Answer 4

Median nerve, brachial artery

Question 5

What are the joints of the pectoral girdle and their movements.

Answer 5

The joints are:
Stenoclavicular joint - only bony joint in the pectoral girdle and is an passive joint, mainly moving when the scapula moves
Glenohumeral joint - joint with most movement in the body, for place,ent of the hand and maximixing manipulation
Acromioclavicular joint - acts as a strut, static stability, keeeps upper arm away from thorax without much effort from muscles
Scapulothoracic joint - stabilize and actively move the scapula

Question 6

What are the muscles that act on the shoulder girdle?

Answer 6

1. Extrinsic (attaches scapula to trunk)
   serratus anterior, Levator scapulae, trapezius, rhomboid major and minor, pec minor
2. Intrinsic (attaches scapula to humerus)
   Teres major, Deltoid, rotator cuff muscles ( supraspinatus, infraspinatous, subscapularis, teres minor )
3. Attaches trunk to humerus
   Pec major and latissimus dorsi

Question 7

What muscles attach to the greater trochanter of the femur?

Answer 7

Internal and external obturator, gluteus minimus and medius, trochanteric bursa (which can get inflamed - trochanteric bursitis

Question 8

What are the contents of the popliteal fossa?

Answer 8

Popliteal artery, popliteal vein, tibial nerve;

Question 9

What are the branches of the fibular artery?

Answer 9

Fibular artery
Circumflex fibular artery
Medial and lateral plantar artery