LAB FINAL - VASCULAR LABS

Question 1

What are the 3 layers of a blood vessel?

Answer 1

1) Tunica Interna 2) Tunica Media 3) Tunica Externa

Question 2

What does the Tunica Interna layer consist of?

Answer 2

Endothelium, Collagen fibers, elastin fibers

Question 3

What does the Tunica Externa layer consist of?

Answer 3

Elastin and collagen fibers, nerves and vasa vasorum (Small vessels which supply walls of large vessel)

Question 4

What does the Tunica Media layer consist of?

Answer 4

Smooth muscle cells and elastin fibers

Question 5

List the flow of blood through the systemic vascular tree…

Answer 5

Heart, Elastic arteries, muscular arteries, arterioles, capillaries, venules, muscular venuals, veins, heart

Question 6

Which blood vessels DO NOT consist of 3 layers?

Answer 6

Capillaries and post capillary venules. This is to allow a smaller diffusion distance to permit the movement of nutrients and wastes.

Question 7

What are the 3 types of capillaries?

Answer 7

Continuous, Fenestrated and Sinusoids

Question 8

Structure of Continuous capillary …

Answer 8

Plasma membrane is continuous and only interrupted by intercellular clefts

** Found in central nervous system, lungs, muscle tissue and skin **

Question 9

Structure of Fenestrated capillaries…

Answer 9

Plasma membrane contains multiple pores

** Found in Kidneys, microvilli of small intestine, most endocrine glands **

Question 10

Structure of Sinusoid capillaries…

Answer 10

Contains large pores and large intercellular clefts

**Found in Liver, Anterior Pituitary, parathyroid gland, Adrenal glad **

Question 11

Systemic circulation refers to…

Answer 11

Blood vessels carrying oxygenated and deoxygenated blood to/from the tissues throughout the body EXCEPT for the lungs

Question 12

Pulmonary circulation refers to…

Answer 12

Blood vessels which carry deoxygenated blood from the heart to the lungs, and oxygenated blood back to the heart

Question 13

Following the ascending aorta, the major branches of the aorta include…

Answer 13

1) Aortic Arch
2) Thoratic Aorta
3) Abdominal Aorta

Question 14

What is the circle of Willis?

Answer 14

A circle of arteries in the brain

Question 15

Which 3 veins drain the head?

Answer 15

Internal jugular vein, External jugular vein and vertebral vein

Question 16

Which major veins do the Internal jugular vein, External jugular vein and vertebral vein, drain into?

Answer 16

Superior Vena cava

Question 17

From which vein is blood often drawn from?

Answer 17

Median Cubital vein

Question 18

What tissue does the Pericardial branch supply?

Answer 18

Pericadial Sac surrounding the heart

Question 19

What tissue does the Bronchial branch supply?

Answer 19

Lung tissues

Question 20

What tissue does the Esophageal branch supply?

Answer 20

Esophagus tissues

Question 21

What tissue does the Mediastinal branch supply?

Answer 21

Tissues of the mediastinum including connective tissues and lymph nodes

Question 22

What tissue does the Posterior intercostal branch supply?

Answer 22

Upper thoratic wall, Majority of thoartic vertebra

Question 23

What tissue does the Subcostal branch supply?

Answer 23

Lower thoratic wall, 12th thoratic vertebra

Question 24

What tissue does the Superior Phrenic branch supply?

Answer 24

Diaphragm and its pleura

Question 25

Venous blood from the thorax drains into which major vein?

Answer 25

Superior Vena Cava.

Question 26

Which vein drains into the hapatic vein? From what organs does this vein receive blood flow from?

Answer 26

Hepatic portal vein. From Stomach, liver, gallbladder, spleen, pancreas, small and large intestine and rectum.