Vessels and Circulation

Question 1

What is found in blood?

Answer 1

Plasma, White blood cells, red blood cells, and platelets

Question 2

What are the different types of blood vessels and their functions?

Answer 2

Arteries carry blood away from the heart.
Veins carry blood towards the heart.
Capillaries are the exchange location for blood and tissues.

Question 3

What are the three different layers of a blood vessel’s walls?

Answer 3

Tunica Intima: inner lining of single layered cells
Tunica Media: middle layer of smooth muscle
Tunica Adventitia: connective tissue layer

Question 4

Describe the differences between an artery and a vein.

Answer 4

Artery:
Carry oxygenated blood, more muscular, thicker walled, narrow lumen
Vein:
Carry deoxygenated blood, less muscular, thinner walled, wide lumen

Question 5

What is the significance of an anastomoses?

Answer 5

Communication between branches of an artery in case blood needs to be rerouted - Collateral Circulation

Question 6

What is the azygos system and its function?

Answer 6

Venous network that drains blood from the body walls and viscera into the superior vena cava

Question 7

What is the function of the lymphatic system.

Answer 7

Drainage of surplus tissue fluids/plasma proteins.
Removal of disease/infection.
Helps reduce swelling.

Question 8

What are the main lymphatic ducts of the body and where to they drain lymph from?

Answer 8

Right Lymphatic Duct: drains lymph from the upper right quadrant of the body of the body.
Thoracic Duct: larger and drains lymph from the rest of the body.
Cisternae Chyli: receives lymph from abdominal viscera.