Chapter 23

Question 1

Cardiac Cycle:

Answer 1

Heart contracts and relaxes rhythmically

Question 2

Heart relaxes blood flows from veins into all 4 heart chambers during

Answer 2

diastole

Question 3

Systole:

Answer 3

heart contracts and blood flows from atria into ventricles

Question 4

The basic tempo of the heartbeat is set by

Answer 4

the SA node

Question 5

Why do we need oxygen?

Answer 5

Required to harvest energy from food effeciently

Question 6

Circulatory systems receive

Answer 6

nutrients, exchange gases, and remove wastes.

Question 7

Mammals have a # Chamber heart?

Answer 7

4

Question 8

How many types of vessels are there?

Answer 8

3

Question 9

What are the different types of vessels?

Answer 9

Arteries
Veins
Capillaries

Question 10

Arteries

Answer 10

carry blood away from the heart

Question 11

Veins

Answer 11

return blood to the heart

Question 12

Capillaries

Answer 12

convey blood between arteries and veins

Question 13

Name two types of cardiovascular diseases:

Answer 13

Stroke

Atherosclerosis

Question 14

Open circulatory systems

Answer 14

bugs- consist of

heart

open-ended vessels

blood that directly bathes the cells

Question 15

Blood Flow:

Answer 15

Body -> Right Atrium -> Right Ventricle -> Lungs -> Left Atrium -> Left Ventricle -> Body

Question 16

Body ->

Answer 16

Right Atrium

Question 17

Right Atrium ->

Answer 17

Right Ventricle

Question 18

Right Ventricle ->

Answer 18

Lungs

Question 19

Lungs ->

Answer 19

Left Atrium

Question 20

Left Atrium ->

Answer 20

Left Ventricle

Question 21

Left Ventricle ->

Answer 21

Body

Question 22

deoxygenated Blood comes into the heart through:

Answer 22

superior or inferior vena cava

Question 23

deoxygenated Blood leaves the heart and goes to lungs thru the

Answer 23

pulmonary arteries

Question 24

Oxygenated blood returns to the heart via the

Answer 24

left atrium through the PULMONARY VEIN

Question 25

oxygenated blood leaves thru the

Answer 25

aorta

Question 26

heart rate is the number of heart beats per

Answer 26

minute

Question 27

heart murmur

Answer 27

defect in heart valves that permits a backflow of blood

Question 28

what sets the tempo of the heartbeat

Answer 28

SA (sinoartrial) node

Question 29

death of brain tissue from bad arteries

Answer 29

stroke

Question 30

fatty deposits in the walls of arteries narrow the blood vessels and restrict flow

Answer 30

atherosclerosis

Question 31

Blood pressure is measured as

Answer 31

systolic pressure/diastolic

Question 32

Blood pressure is persistent at or above 140 systolic &/ 90 diastolic

Answer 32

Hypertension

Question 33

Typical blood pressure for a healthy young adult is

Answer 33

120/70

Question 34

Plasma:

Answer 34

is about 90% water

Question 35

white blood cells or leukocytes

Answer 35

fight infections and cancer

Question 36

leukocytes is another name for

Answer 36

white blood cells

Question 37

Red blood cells or erythrocytes

Answer 37

transport O2 bound to hemoglobin

Question 38

erythrocytes is another name for

Answer 38

red blood cells

Question 39

Plasma is primarily

Answer 39

water

Question 40

multipotent stem cells

Answer 40

unspecialized and replace themselves & can become leukocytes