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Physiology Exam 5 > Exam 5 Fill in Blank (Chpt 16-18) > Flashcards

Exam 5 Fill in Blank (Chpt 16-18) Flashcards

1
Q

The __________ node has an intrinsic rate of about 80-100 action potentials/min

A

SA

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2
Q

__________ activates beta-1 receptors in the heart and causes rate to __________

A

epinephrine, increase

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3
Q

__________ activates Muscarinic M2, GPCRs in the heart and causes the heart to __________

A

acetylcholine, decrease

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4
Q

Stroke volume )SV) equals _____-_____

A

EDV-ESV

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5
Q

Low arterial pressure will cause a reflex __________ in heart

A

increase

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6
Q

Blood flow equals pressure in minus pressure out, divided by __________ __________

A

vascular resistance

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7
Q

As blood vessels get smaller, the resistance of those vessels get __________

A

greater

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8
Q

Norepinephrine leads to vasoconstriction due to activation of __________ receptors

A

alpha-1

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9
Q

CO x TPR = __________

A

MAP

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10
Q

__________ __________ __________ respond to changes in arterial pressure to the head

A

Carotid Sinus Baroreceptors

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11
Q

As capillary blood pressure increases, fluid movement into the __________ __________

A

interstitial space

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12
Q

increased capillary osmotic pressure enhances capillary _________ (fluid movement)

A

absorption

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13
Q

__________ converts fibrinogen to fibrin

A

Thrombin

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14
Q

Fibrinolysis involves cleaving of plasminogen to __________ and the dissolving of clots

A

plasmin

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15
Q

Blood type O+ typically has antibodies to the __________ proteins

A

AB

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16
Q

Lancets and needles must be placed in a __________ __________ before disposal

A

sharps, container

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17
Q

lancets and needles must NOT be placed into a __________ __________ or into a trash can

A

biohazard bag

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18
Q

The aortic valve closes when the left __________(chamber) __________(action)

A

ventricle, relaxes

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19
Q

The right AV valve opens when the right __________(chamber) __________(action)

A

ventricle, relaxes

20
Q

__________ binds to adrenergic Beta-1 receptors in the heart and causes heart rate to __________

A

Epinephrine, increase

21
Q

__________ binds to cholinergic muscarinic-2 receptors in the heart and causes heart rate to __________

A

Acetylcholine, decrease

22
Q

Given an RR interval in the EKG of 0.80 sec, the heart rate would be __________ beats/min

A

75

23
Q

Given an RR interval in the EKG of 0.667 sec, the heart rate would be __________ beats/min

A

90

24
Q

Stroke volume (SV) equals __________ - __________

A

EDV, ESV

25
Q

An increase in EDV will usually __________ stroke volume

A

increase

26
Q

A decrease in ESV will usually __________ stroke volume

A

increase

27
Q

A longer __________ interval suggests a partial AV heart block caused by damage to the AV node

A

PR

28
Q

Given an arterial pressure of 100/85, the mean arterial pressure would be __________ mmHg

A

90

29
Q

Given an arterial pressure of 130/70, the mean arterial pressure would be __________ mmHg

A

90

30
Q

Cardiac output (CO) = SV x __________

A

HR

31
Q

Given a HR of 80/min and a SV of 80 mL, the CO would be __________ L/min

A

6.4

32
Q

Cardiac output (CO) = (__________ - __________)/VR

A

MAP, CVP

33
Q

Given (MAP-CVP) of 90 mmHg anda VR of 20 mmHg/L/min, the CO would be __________ mmHg

A

130

34
Q

Low arterial pressure will stimulate a reflex __________(change) in heart rate

A

increase

35
Q

High arterial pressure will stimulate a reflex __________ (change) in heart rate

A

decrease

36
Q

When the size of our arteries increases, the vascular resistance will __________

A

decrease

37
Q

When the size of our arteriers decreases, the vascular resistance will __________

A

increase

38
Q

Drugs that prevent the action of norepinephrine on the heart will usually __________ cardiac output

A

decrease

39
Q

Angiotensin I is produced from the cleavage of angiotensinogen by __________

A

renin

40
Q

Drugs that prevent the action of angiotensin II on blood vessels will usually _________ arterial pressure

A

decrease

41
Q

The plasma protein__________ plays a major role in control of blood osmolarity and volume

A

albumin

42
Q

__________ capillary blood pressure enhances fluid movement into the capillaries

A

low

43
Q

Blood with a hematocrit of 42 will have a hemoglobiin concentration of about __________ g/dl

A

14

44
Q

Blood with a hematocrit of 48 will have a hemoglobin concentration of about __________ g/100 mL

A

16

45
Q

Blood type B+ most commonly contains antibodies to the __________ protein

A

A

46
Q

Blood type A - is most commonly contains antibodies to the __________ protein

A

B

47
Q

Tissue plasminogen activator (TPA) converts plasminogen to __________ to dissolve blood clots

A

plasmin

Physiology Exam 5 (2 decks)

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