Quiz 2

Question 1

the cardiovascular system has how many chambers?

Answer 1

4. 2 upper and 2 lower

Question 2

the upper chambers are what?

Answer 2

receiving chambers

Question 3

which side services the whole body?

Answer 3

left

Question 4

what is it called when 1 pump services the whole body?

Answer 4

systemic circulation

Question 5

what are the functions of the right atrium?

Answer 5

1. receive blood from venous side of system
2. move/contract final 30% of blood into right ventricle

Question 6

what is a heart murmur?

Answer 6

when some of the blood flows backwards back into the right atrium

Question 7

arteries carry blood —- from heart, veins carry blood —- heart

Answer 7

away, to

Question 8

why is high BP bad?

Answer 8

makes heart work harder and difficult to push blood through system

Question 9

PAT (paraxysmal atrial tachycardia)

Answer 9

atria contracts very rapidly. feel in chest

Question 10

tachycardia

Answer 10

fast HR

Question 11

bradycardia

Answer 11

slow HR

Question 12

ejection fraction

Answer 12

when you fill up ventricles they do not empty completely

Question 13

what is typical ejection fraction?

Answer 13

65-70%

Question 14

cardiac output

Answer 14

amount of blood pumped out each minute

Question 15

cardiac output is a combination of

Answer 15

1. how many times your heart beats
2. HR
3. SV

Question 16

cardiac output =

Answer 16

HR x SV

Question 17

what does it mean if there is a huge SV?

Answer 17

huge cardiac output. can circulate a lot more blood and deliver more oxygen which makes more energy

Question 18

why would you take BP at ankle?

Answer 18

to see if pressure in ankle is same as pressure in arm

Question 19

when glucose in blood stream gets too high what happens?

Answer 19

it randomly attaches to proteins, which is destructive

Question 20

arterioles operate with

Answer 20

vasomotor tone

Question 21

what is vaso motor tone

Answer 21

always contricted 50% half open half closed to give most rapid response

Question 22

purpose of cardiovascular system

Answer 22

get blood into capillaries

Question 23

purpose of respiratory system

Answer 23

get oxygen into alveoli

Question 24

what occurs in capillaries

Answer 24

gas exchange and nutrient exchange

Question 25

kcal equivalent table is driven by the

Answer 25

fuel mix

Question 26

kcal equivalent table tells

Answer 26

how many kcal you are producing per L of oxygen consumed

Question 27

systole means

Answer 27

heart is beating and contracting, it is active

Question 28

diastole means

Answer 28

heart is resting

Question 29

what is arteriole pressure typically

Answer 29

120/80

Question 30

precapillary sphincter

Answer 30

open this if you want to push blood into capillaries

Question 31

in the venous side, what is the pressure?

Answer 31

0-10

Question 32

when taking BP, interested in

Answer 32

the 1st and 5th sounds

Question 33

1st sound represents what

Answer 33

systolic pressure

Question 34

the pacemaker is also called

Answer 34

sinoatrial node

Question 35

what does the pacemaker do

Answer 35

sets the pace, triggers electrical impulse

Question 36

what is automericity?

Answer 36

every cell can generate electrical impulses

Question 37

where is the pacemaker located?

Answer 37

the R atrium

Question 38

what is the P wave?

Answer 38

depolarization.

Question 39

what is QRS wave

Answer 39

depolarization of ventricles

Question 40

what is T wave

Answer 40

repolarization of ventricles

Question 41

what does EEG measure

Answer 41

brain waves

Question 42

what is the job of the atria?

Answer 42

squeeze blood and push down

Question 43

what is the job of the R ventricle?

Answer 43

lungs and back

Question 44

what is the job of the L ventricle?

Answer 44

everywhere

Question 45

what happens in skeletal muscle?

Answer 45

every fiber is surrounded by insulation of connective tissue. has its own nerve supply

Question 46

what happens in cardiac muscle?

Answer 46

generates as much force as it can and all fibers contract at the same time

Question 47

sympathetic nervous system

Answer 47

fight or flight. save your life

Question 48

parasympathetic nervous system

Answer 48

rest and digest

Question 49

parasympathetic operates from

Answer 49

vagus nerve

Question 50

vagal escape is what

Answer 50

find parasympathetic/vagus nerve, put electrode and stimulate. if strong enough stop pacemaker and stop heart

Question 51

cardiovascular control center does what

Answer 51

influence what goes on with the 2 nervous systems

Question 52

what do proprioceptors do

Answer 52

tell what is going on in body and positioning, how much tension in muscles