Axilla & Femoral Triangle

Question 1

What shape is the axilla?

Answer 1

3D pyrimidal

Question 2

What forms the apex of the axilla?

Answer 2

clavicle, scapula and first rib.

Question 3

What forms the anterior wall of the axilla?

Answer 3

Pectoralis major + minor, clavicle and subclavius muscle.

Question 4

What forms the posterior wall of the axilla?

Answer 4

scapula, subscapularis and teres major muscles (with tendon of latissimus dorsi)

Question 5

What forms the medial wall of the axilla?

Answer 5

upper ribs and intercostals, covered by serratus anterior

Question 6

What forms the lateral wall of the axilla?

Answer 6

Bicipital groove containing long head of biceps tendon

Question 7

What forms the base of the axilla?

Answer 7

deep fascia of the arm attached to the axillary folds.

Question 8

What nerves are within the axilla?

Answer 8

Brachial plexus and some of its branches to the upper limb

Question 9

What artery is in the axilla?

Answer 9

Axillary Artery (from subclavian artery, goes into the brachial artery). From Lateral border of 1st rib to inferior border of teres major

Question 10

What vein is in the axilla?

Answer 10

Axillary vein. (from basilic vein, going into subclavian vein). Inferior boder of teres major to lateral border of 1st rib.

Question 11

What lymphatics are within the axilla?

Answer 11

SCALP (subscapular, central, apical, lateral and pectoral groups). Drain lymph from upper limb, breast and thoracoabdominal walls.

Question 12

What does the axillary sheath enclose?

Answer 12

Axillary artery, vein and cords of the brachial plexus. NOTE - NOT THE LYMPHATICS.

Question 13

What shape is the femoral triangle.

Answer 13

Triangle - idiot.

Question 14

Where is the femoral triangle located?

Answer 14

Anterior superomedial 1/3 of the thigh.

Question 15

What forms the superior border of the femoral triangle?

Answer 15

inguinal ligament

Question 16

What forms the medial border of the femoral triangle?

Answer 16

adductor longus muscle

Question 17

What forms the lateral border of the femoral triangle?

Answer 17

sartorius muscle

Question 18

What forms the apex of the femoral triangle?

Answer 18

where sartorius meets adductor longus muscle

Question 19

What forms the floor of the femoral triangle?

Answer 19

adductor longus, pectineus and iliopsoas mucles

Question 20

What forms the roof of the femoral triangle?

Answer 20

deep fascia.

Question 21

What are the contents of the femoral triangle?

Answer 21

Femoral nerve (L2-L4), Femoral artery, Femoral Vein (receives profunda femoris and great saphenous veins), Lymphatics (superficial and deep) and Femoral sheath (encloses femoral artery, vein and lymphatics).

Question 22

In what order do the contents of the femoral triangle lie?

Answer 22

NAVL (lateral –> medial)