the physiology of the cardiovascular system (chap13)

Question 1

What are Arteries?

Answer 1

• large branching vessels sending blood to the body
• 98% OXYGENATED blood

Question 2

define arterioles

Answer 2

• small branching vessels with high resistance

Question 3

what is the simple definition of capillaries

Answer 3

• site of exchange between blood and tissue

Question 4

what is the simple definition of venules

Answer 4

• small converging vessels

Question 5

What are Veins

Answer 5

• relatively large converging vessels that send blood to the heart
• 75% DEOXYGENATED blood

Question 6

define erythrocytes

Answer 6

• red blood cells
• transport o2 and CO2

Question 7

define leukocytes

Answer 7

• white blood cells
• important for immune system as they fight pathogens

Question 8

define platelets

Answer 8

• cell fragments
• important for healing and blood clotting

Question 9

define plasma

Answer 9

• made from fluid and solutes
• many functions (carrying nutrients, waste, proteins, ect)

Question 10

what side of the heart supplies the pulmonary circuit?

Answer 10

• SUPPLIED BY THE RIGHT HEART
• blood vessels from the heart to the lungs and from the lungs to the heart

Question 11

what side of the heart supplies the systemic circuit?

Answer 11

• SUPPLIED BY THE LEFT SIDE OF THE HEART
• blood vessels from the heart to systemic tissues and back

Question 13

How does blood get oxygenated?

Answer 13

• exchange between blood and tissue occurs in capillaries

Question 14

How does blood get oxygenated in the pulmonary capillaries?

Answer 14

• blood entering the lungs = DEOXYGENATED blood
• o2 diffuses from tissues to blood
• blood leaving lungs = OXYGENATED blood