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Exercise Physiology > Quiz 2 > Flashcards

Quiz 2 Flashcards

1
Q

the cardiovascular system has how many chambers?

A
  1. 2 upper and 2 lower
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2
Q

the upper chambers are what?

A

receiving chambers

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3
Q

which side services the whole body?

A

left

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4
Q

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

A

systemic circulation

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5
Q

what are the functions of the right atrium?

A
  1. receive blood from venous side of system
  2. move/contract final 30% of blood into right ventricle
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6
Q

what is a heart murmur?

A

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

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7
Q

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

A

away, to

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8
Q

why is high BP bad?

A

makes heart work harder and difficult to push blood through system

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9
Q

PAT (paraxysmal atrial tachycardia)

A

atria contracts very rapidly. feel in chest

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10
Q

tachycardia

A

fast HR

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11
Q

bradycardia

A

slow HR

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12
Q

ejection fraction

A

when you fill up ventricles they do not empty completely

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13
Q

what is typical ejection fraction?

A

65-70%

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14
Q

cardiac output

A

amount of blood pumped out each minute

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15
Q

cardiac output is a combination of

A
  1. how many times your heart beats
  2. HR
  3. SV
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16
Q

cardiac output =

A

HR x SV

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17
Q

what does it mean if there is a huge SV?

A

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

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18
Q

why would you take BP at ankle?

A

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

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19
Q

when glucose in blood stream gets too high what happens?

A

it randomly attaches to proteins, which is destructive

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20
Q

arterioles operate with

A

vasomotor tone

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21
Q

what is vaso motor tone

A

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

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22
Q

purpose of cardiovascular system

A

get blood into capillaries

23
Q

purpose of respiratory system

A

get oxygen into alveoli

24
Q

what occurs in capillaries

A

gas exchange and nutrient exchange

25
Q

kcal equivalent table is driven by the

A

fuel mix

26
Q

kcal equivalent table tells

A

how many kcal you are producing per L of oxygen consumed

27
Q

systole means

A

heart is beating and contracting, it is active

28
Q

diastole means

A

heart is resting

29
Q

what is arteriole pressure typically

A

120/80

30
Q

precapillary sphincter

A

open this if you want to push blood into capillaries

31
Q

in the venous side, what is the pressure?

A

0-10

32
Q

when taking BP, interested in

A

the 1st and 5th sounds

33
Q

1st sound represents what

A

systolic pressure

34
Q

the pacemaker is also called

A

sinoatrial node

35
Q

what does the pacemaker do

A

sets the pace, triggers electrical impulse

36
Q

what is automericity?

A

every cell can generate electrical impulses

37
Q

where is the pacemaker located?

A

the R atrium

38
Q

what is the P wave?

A

depolarization.

39
Q

what is QRS wave

A

depolarization of ventricles

40
Q

what is T wave

A

repolarization of ventricles

41
Q

what does EEG measure

A

brain waves

42
Q

what is the job of the atria?

A

squeeze blood and push down

43
Q

what is the job of the R ventricle?

A

lungs and back

44
Q

what is the job of the L ventricle?

A

everywhere

45
Q

what happens in skeletal muscle?

A

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

46
Q

what happens in cardiac muscle?

A

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

47
Q

sympathetic nervous system

A

fight or flight. save your life

48
Q

parasympathetic nervous system

A

rest and digest

49
Q

parasympathetic operates from

A

vagus nerve

50
Q

vagal escape is what

A

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

51
Q

cardiovascular control center does what

A

influence what goes on with the 2 nervous systems

52
Q

what do proprioceptors do

A

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

53
Q
A

Exercise Physiology (3 decks)

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