QUIZ

Question 1

Closed circulatory system

Answer 1

Cardiovascular system consists of strong muscular heart and blood
vessels
* Blood is always contained within vessels and normally never runs
freely through the body cavity

Question 2

Three types of vessels

Answer 2

arteries, veins, and capillaries

Question 3

Lymphatic system will___ returns it to blood

Answer 3

pick up excess tissue fluid

Question 4

The heart ___ blood into ___

Answer 4

pumps, arteries

Question 5

Arteries take oxygenated blood ___ from heart to ____ in the body where ___ exchange takes place

Answer 5

away, capillaries, gas

Question 6

Human heart is ___

Answer 6

double pump

Question 7

Double pump: right side pumps ____ blood to lungs

Answer 7

O2-Poor

Question 8

Double pump: left side pumps ____ blood to the body

Answer 8

O2-Rich

Question 9

___ separates
sides and prevents mixing.

Answer 9

Complete septum

Question 10

two chambers

Answer 10

Atria (upper, thin-walled
chambers receiving blood)
Ventricles (lower, thick-walled
chambers pumping blood.)

Question 11

Arteries take blood ___ from the heart.
Veins take blood __ the heart.

Answer 11

AWAY, TO

Question 12

Valves ___ after blood moves through
them. Why?

Answer 12

close, * Keeps blood moving in one direction!

Question 13

Atrioventricular (AV) valves are ____

Answer 13

between atria
and ventricles

Question 14

tricuspid

Answer 14

right AV

Question 15

bicuspid/mitral

Answer 15

left AV

Question 16

Heart ____ is often due to ___ atrioventricular valve allowing blood to
___ back into atrium.

Answer 16

murmur, leaky, leak

Question 17

Semilunar valves

Answer 17

between ventricles and
attached vessels, Aortic and Pulmonary
valves that take blood to the body and
lungs, respectively

Question 18

Pulmonary circuit

Answer 18

Venae cavae (#11) bring O2-poor blood from the body to the right atrium (#1)
* Poor blood then goes Right atrium (#1) through right atrioventricular valve (the tricuspid valve)
into right ventricle (#2)
* Then through the Right ventricle through pulmonary semilunar valve (#3) into pulmonary trunk
and pulmonary arteries (#4)
* Then through Pulmonary arteries to the lungs (#5)

Question 19

Systemic circuit

Answer 19

From lungs, pulmonary vein brings O2-rich blood to left atrium (#6)
* Left atrium through left atrioventricular valve (the bicuspid valve) into left ventricle (#7)
* Left ventricle through aortic semilunar valve into aorta (#9, #8 is a contraction)
* Aorta out to the tissues (#10)

Question 20

Systole

Answer 20

contraction

Question 21

Diastole

Answer 21

relaxation

Question 22

Lub-dub sound caused by ____

Answer 22

valves closing

Question 23

Lub:

Answer 23

Atrioventricular valves closing (Tricuspid and Bicuspid)

Question 24

Dub:

Answer 24

Semilunar valves closing (aortic and pulmonary)

Question 25

The heartbeat or cardiac cycle

Answer 25

Step 1: Atria contract / Ventricles are relaxed Step 2: Atria relax / Ventricles contract Step 3: Atria and Ventricles relax (to refill with blood)

Question 26

Pulse

Answer 26

pressure wave that passes from heart to arteries

Question 27

___ pulse per ventricular systole

Answer 27

One

Question 28

* SA (sinoatrial) node is ___

Answer 28

pacemaker for rhythm * Every 0.85 seconds sends out signal to atria to contract * Picked up at AV (atrioventricular) node causes ventricles to contract * Nervous system and hormones can modify rhythm

Question 29

Time Atria Ventricles 0.15 sec Systole Diastole 0.30 sec Diastole Systole 0.40 sec Diastole Diastole

Answer 29

Heartbeat cycles: Phase 1: artial systole Phase 2: ventricular systole Phase 3: artial and ventricular diastole

Question 30

Systolic value

Answer 30

(ventricular contraction)

Question 31

Diastolic value

Answer 31

(ventricular relaxation)

Question 32

Blood pressure is the ___

Answer 32

force of blood against the inside of blood vessel walls.

Question 33

Blood will move from ___ to ___ pressure

Answer 33

high to low

Question 34

Blood pressure can be influenced primarily by:

Answer 34

cardiac output, peripheral resistance, and blood volume. Body position, exercise, and other factors may affect some of these variables.

Question 35

Systolic pressure

Answer 35

the maximum pressure in an artery during ventricular contraction.

Question 36

Diastolic pressure

Answer 36

the minimum pressure in an artery during ventricular relaxation.

Question 37

Best pulse site

Answer 37

Brachial (upper forearm) can also be radial (wrist) temporal (temples)

Question 38

A pulse is felt as the ___

Answer 38

expansion of the arteries during ventricular systole (contraction)

Question 39

Pulse rate is the number of ____

Answer 39

heart beats per minute, is one way heart rate (HR) is measured. As a result, pulse rate equals heart rate.

Question 40

* A pulse can be detected in

Answer 40

several superficial arteries in the body.

Question 41

Pulse rate can be influences by

Answer 41

body position, activity, and emotions.

Question 42

Pulse is felt as the ____

Answer 42

expansion of the arteries during ventricular systole

Question 43

SA (sinoatrial) node is ____ for rhythm

Answer 43

pacemaker

Question 44

Electrocardiogram (ECG)

Answer 44

Recording of electrical changes that occur in heart wall during cardiac cycle.

Question 45

Ventricular fibrillation is due to _____

Answer 45

uncoordinated contraction of the ventricles. * Type of arrhythmia * May be stopped using a defibrillator and CPR

Question 46

ECG is used to

Answer 46

to determine the health of the heart and, when present, diagnose disorders of the heart.

Question 47

Components of ECG

Answer 47

1. wave 2. segment 3. interval 4. complex