5. the cardiovascular system

Question 1

narrowing of the arteries, which restricts blood flow to the heart muscle, may manifest first as:

Answer 1

angina pectoris

Question 2

renal factor

Answer 2

when kidneys alter the amount of salt in the blood, therefore the amount of water (diffusion)

Question 3

how does diet and exercise affect blood pressure?

Answer 3

by altering the thickness of blood vesssel walls

Question 4

2 controlling systems of the heart and their role

Answer 4

ANS(beating) and the nodal system (pacemaker)

Question 5

consequences of plaque build up in the arteries

Answer 5

coronary arterial disease, ischemia (lack of oxygen), angina pectoris, heart attack, stroke, thrombosis

Question 6

the ANS can do what to the heart?

Answer 6

can increase or decrease the heart rate

Question 7

all veins are______ to the heart

Answer 7

returning

Question 8

all arteries are_______ to the heart

Answer 8

leaving

Question 9

everything comes into the heart where?

Answer 9

the right atrium