Unit 6 - Cardiovascular System Key Terms

Question 1

myocardium

Answer 1

heart muscle; thicker on the left side

Question 2

endocardium

Answer 2

lining of the heart chambers

Question 3

atria

Answer 3

two upper chambers of the heart; responsible for receiving blood

Question 4

ventricles

Answer 4

two lower chambers of the heart; responsible for pumping blood away from the heart

Question 5

superior and inferior vena cava

Answer 5

largest veins in the body

Question 6

aorta

Answer 6

largest artery in the body

Question 7

tricuspid valve

Answer 7

between the right atrium and right ventricle

Question 8

bicuspid valve

Answer 8

between the left atrium and left ventrcle

Question 9

EKG

Answer 9

electrocardiogram; tracing of the electrical activity of the heart

Question 10

arteries

Answer 10

carry blood away from the heart; thicker, to withstand pressure during systole

Question 11

veins

Answer 11

carry blood toward the heart; layers are much thinner than arteries

Question 12

pulse site - temporal

Answer 12

side of the forehead

Question 13

pulse site - carotid

Answer 13

at the neck

Question 14

pulse site - brachial

Answer 14

the crease of the elbow

Question 15

pulse site - radial

Answer 15

on the thumb side of the inner wrist

Question 16

pulse site - femoral

Answer 16

on the medial side of the upper thigh

Question 17

systole

Answer 17

contraction of the heart

Question 18

diastole

Answer 18

relaxation of the heart

Question 19

normal blood pressure

Answer 19

systolic: 100-140
diastolic: 60-90

Question 20

hypotension

Answer 20

systolic < 90

Question 21

hypertension

Answer 21

systolic > 150 or diastolic >90