Axillary Fossa

Question 1

Up and down

Answer 1

Up: Subclavian artery
Down: Axillary sheath (Vagina axillaries)

Question 2

Answer 2

Up: Anterior Axillary fold
Down:Posterior Axillary fold

Question 3

Apex and floor

Answer 3

Apex: (cervico-axillary canal)
Floor: Armpit skin &axillary fascia

Question 4

Answer 4

Up: Costocoracoid membrane
Down: Axillary membrane

Question 5

What’s at the Anterior wall of Axillary fossa

Answer 5

Clavipectoral fascia

Question 6

Answer 6

Up: Costocoracoid ligament
Down left to right: Suspensory lig of axilla(pulls skin up), Pectoralis minor, Costocoracoid memb, Pectoralis major.

Question 7

Answer 7

Up: Subscapularis
Down: Latismus dorsi

Question 8

Answer 8

Right up: Pectoralis major
Right down: Pectoralis minor
Arrow: Serattus Anterior
Left: Intertubercular groove of humerus

Question 9

Answer 9

Left up: Short head of bicep
Left down: Long head of bicep
Down: Cords of brachial plexus

Question 10

Axilla content

Answer 10

Axillary a-v-lymph nodes
Cords of brachial plexus
Biceps-coracobrachialis
Loose connective tissue
Axillarysheath (cont. w prevertebral fascia)
Axillary process of breast – tail of Spence
Branches from intercostal nerves

Question 11

Question 12

Answer 12

Up: Cephalic vein
Down: Lateral pectoral nerve

Question 13

Answer 13

Subclavian vein

Question 14

Answer 14

Catheterisation for central venous pressure

Question 15

Part of Axillary Artery

Answer 15

Branch 1– Above muscle
Branch 2– Below muscle
Branch 3

Question 16

Branch 1 of Axillary artery

Answer 16

Superior (highest)(supreme) thoracic a

Question 17

Branch 2 of Axillary artery

Answer 17

Thoraco-acromial trunk
pectoral, acromial, clavicular, deltoid brr
Lateral thoracic a

Question 18

Branch 3 of Axillary artery

Answer 18

Anterior circumflexhumeral a
Posterior circumflexhumeral a
Subscapular a (thickest branch)
Thorocodorsal a
Circumflex scapular a

Question 19

Right

Answer 19

Up: Superior thoracic artery
Down: Coracoacromial trunk

Question 20

Left

Answer 20

Up: Subscapular artery
Under: CIrcumflex lateral artery
Down: Thoracodorsal artery

Question 21

What is the scapular network

Answer 21

Rete scapulae

Question 22

Up to down

Answer 22

Subclavian artery, superior thoracic artery, lateral thoracic artery, Long thoracic nerve, Serratus anterior muscle

Question 23

Answer 23

Right: Branches to breast
Left: Lateral mammary artery

Question 24

Answer 24

Right: Branches to breast
Left: Lateral mammary artery

Question 25

Down left to right (Axillary spaces)

Answer 25

Medial/ Triangular space Quadrangular/ Lateral space Triangular interval transmitting: Anastomotic atery and exposing radial nerve

Question 26

Question 27

Answer 27

Cephalic vein

Question 28

Answer 28

Right: Ariolar vein Left: Thorcoaxillary

Question 29

Axillary Vein Tributaries

Answer 29

Subscapular v Circumflex scapular v Thoracodorsal v Anterior humeral circumflex v Posterior humeral circumflex v Lateral thoracic v Thoraco-epigastric vv Areolar vv  Cephalic v

Question 30

Drainage of subclavian trunk (right)

Answer 30

Jugular trunk Subclavian trunk Left superior intercostal vein

Question 31

Drainage of subclavian trunk (left)

Answer 31

Jugular trunk Subclavian trunk Superior vena cava

Question 32

Left and right

Answer 32

Left: Anterior axillary lymph nodes Right: Posterior axillary lymph nodes

Question 33

Answer 33

Lateral group of axillary lymph nodes

Question 34

Sentinel Lymph node dissection

Answer 34

If you remove the mass you inject a dye around the location of the mass through lymphatics the dye goes to 1 of the axillary nodes. Next, you dissect the axilla. If you find cancer cells in axillary lymph node-- dissect more. If not-- treated. Node where dye goes is called sentinel node.

Question 35

What is the network of nerves in the Axilla

Answer 35

Brachial plexus

Question 36

What happens if during birth if you pull the head laterally too much?

Answer 36

The upper cords of the brachial plexus will be damaged. Known as Fetal dystocia

Question 37

What forms the spinal nerve?

Answer 37

Dorsal- Ventral root and Spinal cord

Question 38

Answer 38

Right: Spinal cord Dorsal root (ganglion) Ventral root Left: (spinal nerve division) Dorsal ramus Ventral ramus

Question 39

What forms a plexus?

Answer 39

Ventral rami (before intervening body parts) Dorsal rami doesnt

Question 40

What plexuses does the ventral rami form?

Answer 40

Cervical plexus,Lumbar plexus and sacral plexus

Question 41

Do thoracal spinal nerve form plexuses?

Answer 41

No

Question 42

Number of pairs of spinal cord? (spinal nerves)

Answer 42

C8 T12 L5 S5 Co1 31 spinal nerves

Question 43

Answer 43

Skin area of pair of spinal nerves

Question 44

Dermatomes

Answer 44

Sensory areas for each pair of spinal nerves Usually parallel to each other

Question 45

Question 46

Roots

Answer 46

Between scalene muscles

Question 47

Trunks

Answer 47

Posterior triangle of neck

Question 48

Division

Answer 48

Behind clavicle