Blood supply to the cavities

Question 1

Can you identify the

Answer 1

descending thoracic aorta
subclavian artery
internal thoracic artery
posterior intercostal arteries
anterior intercostal arteries

SVC
anterior intercostal veins
posterior intercostal veins
internal thoracic vein
azygous vein
hemiazygous vein
accessory hemiazygous vein

Question 2

What major blood vessel gives rise to the posterior intercostal arteries?

Answer 2

Thoracic aorta

Question 3

What major blood vessel gives rise to the anterior intercostal arteries?

Answer 3

internal thoracic artery

Question 4

What major blood vessel gives rise to the internal thoracic artery?

Answer 4

Subclavian artery

Question 5

Where does the azygous vein drain into?

Answer 5

SVC

Question 6

Where do the anterior intercostal veins drain into?

Answer 6

internal thoracic

Question 7

Where do the posterior intercostal veins drain into?

Answer 7

azygous system

Question 8

Where does blood flow if the inferior vena cava is blocked?

Answer 8

Through the azygous system

Question 9

What do the lymphatic vessels generally follow?

Answer 9

The arterial system but in the opposite direction

Question 10

What is the main channel that returns lymph from the body to the venous system?

Answer 10

Thoracic duct - can you locate it #/

Question 11

What is the cisterna chylii?

Answer 11

where many lymphatic ducts converge in the upper lumbar vertebrae, its the origin of the thoracic duct.
locate it

Question 12

What is the journey of the thoracic duct?

Answer 12

Cisterna chylii, ascends thoracic cavity through the aortic hiatus in the diaphragm . in the thoracic cavity it can be found anterior to the thoracic vertebrae, to the right of the midline, between thoracic aorta and azygous vein, it does move to the left and ultimately drains into the left internal jugular on the subclavian veins.

Question 13

Where is it common for breast cancer to metastasise?

Answer 13

to the axillary lymph nodes

Question 14

Where is it common for testicular cancer to metastisise?

Answer 14

para-aortic / lumbar lymph noes

Question 15

What are the three main branches of the abdominal aorta that supply the gut tube?

Answer 15

-coeliac trunk
-superior mesenteric artery
-inferior mesenteric artery

Question 16

What arteries arise from the abdominal aorta to supply the abdominal viscera?

Answer 16

suprarenal (hard to see)
renal
gonadal

Question 17

Which vein does the left gonadal vein drain blood into?

Answer 17

left renal vein

Question 18

Which vein does the right gonadal vein drain blood into?

Answer 18

IVC

Question 19

At what vertebral level is the aoritc hiatus

Answer 19

t12

Question 20

At what vertebral level does the abdominal aorta bifurcate?

Answer 20

L4

Question 21

What deos the coelic trunk supply?

Answer 21

foregut - The foregut organs are the stomach, the first half of the duodenum, and the liver, gallbladder, pancreas, and spleen.

Question 22

what does the superior mesenteric artery supply?

Answer 22

midgut - The midgut consists of the distal half of the duodenum, jejunum, ileum, cecum, ascending colon, and the proximal half of the transverse colon

Question 23

what does the inferior mesenteric artery supply?

Answer 23

hindgut- cecum, large colon, small colon and the rectum

Question 24

what does the common iliac artery supply?

Answer 24

Pelvis and lower limbs

Question 25

Can you identify an abdominal CT?

Answer 25

do it

Question 26

What abdominal organs drain via the portal system?

Answer 26

gut tube, gall baldder, pancreas, spleen

Question 27

What abdominal organs drain via the caval system?

Answer 27

kidneys, suprarenal glands

Question 28

How does the portal system differ from the systemic system?

Answer 28

blood that drains via the portal system does not go straight to the heart as it does in the caval system it goes to the liver for detoxification and metabolism

Question 29

What are the 4 regions of the body that are portal-caval anatamosis?

Answer 29

anal canal distal oesophagus peri-umbilical region posterior aspect of retroperitoneal visecera

Question 30

If there was an obstruction in the portal vein what are the consequences to the portal-caval anatomosis>

Answer 30

if blood can't return via the portal system it returns via the systemic circulation - this is possible due to the lack of valves in the portal venous system. it results in an enlargement of ceins in hte systemic circulation, especially at the sites of anastomoses, this causes clincal features like anorectal or oesophageal varices and enlargement of periumbilical veins = caput medusae

Question 31

do quiz on handout sheet

Answer 31

done?

Question 32

Add brain and head supply

Answer 32

?

Question 33

add arms and leg supply plus features for big ones

Answer 33

? brachiocephalic subclavia axillary brachial radial and deep ulnar interosseus superficial palmar branch and deep dorsal veins cephalic basilic median cubital vein deltopectoral groove abdominal aorta common iliac internal and external iliac femoral artery profunda femoris popliteal posterior tibial anterior tibial fibular artery genicular branches medial plantar anterior tibial dorsalis pedis superior gluteal obturator inferior gluteal dorsal venous arch small saphenous popliteal fossa great saphenous

Question 34

What are the margins of the subclavian artery?

Answer 34

the origin is the medial border of the anterior scalene last part is the lateral border of the anterior scalene

Question 35

What are the margins of the axillary artery?

Answer 35

first - proximal to pectoralis minor lastp distal to pectoralis minor

Question 36

What are the marigins of the brachial artery?

Answer 36

distal to teres major