ch3

Question 1

systemic circuit

Answer 1

left side of the heart, pumps blood high in O2 and low in CO2 (oxygenated) to rest of body

Question 2

arteries

Answer 2

carry blood away from heart

largest = aorta, carries blood away from heart

A=arteries=away

Question 3

veins

Answer 3

transport blood back to the heart

Question 4

arterioles

Answer 4

small branches of arteries, end in capillaries

Question 5

capillaries

Answer 5

smallest blood vessels, site of gas, chemical, ands water exchange

Question 6

venules

Answer 6

very small veins, connect capillaries to larger veins

Question 7

order blood travels through heart

Answer 7

1- right atrium receives deoxygenated blood from body and pumps to right ventricle

2-right ventricle pumps deoxygenated blood to lungs through pulmonary valve

3-left atrium receives oxygenated blood from lungs and pumps to left ventricle

4-left ventricle pumps oxygenated blood through aortic valve out to rest of body

Question 8

largest chamber

Answer 8

left ventricle

Question 9

stroke volume

Answer 9

total amount of blood pumped out of the heart with each contraction

avg for adult = 77mL

Question 10

heart rate

Answer 10

rate at which heart beats; 70-80bpm

Question 11

cardiac output

Answer 11

volume of blood pumped by heart per minute

heart rate times stroke volume

Question 12

3 functions of blood in body

Answer 12

transportation, regulation, protection

Question 13

conducting airways

Answer 13

structures that air travels though before entering respiratory airways

nasal and oral cavities, mouth, pharynx, larynx, trachea, bronchioles

Question 14

respiratory airways

Answer 14

alveoli, alveolar sacs

collect channeled air coming from conducting airways