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Human Physiology lab > Lab 9 > Flashcards

Lab 9 Flashcards

1
Q

Plasma made out of

A

90% water
Organic and inorganic substances

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2
Q

Percent volume of whole blood occupied by formed elements

A

Hematocrit

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3
Q

How much hermatocrit do males have

A

40-52%

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4
Q

How much hematocrit do females have

A

36-48%

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5
Q

What are platlets called

A

Thrombocytes

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6
Q

What are red blood cells called

A

Erythrocytes

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7
Q

What are white blood cells called

A

Leukocytes

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8
Q

Type of cell?
Bioncave disk shaped cells
No nucleus
Contain hemoglobin
Function is carbon dioxide and oxygen transport

A

Erythrocytes

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9
Q

Type of cell?
Types are grandulocytes and agranulocytes
Function is immune defense, detoxification, and inflammatory response

A

Leukocytes

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10
Q

Type of cell?
Cytoplasmic fragments from megakaryocytes
2-4 micrometers
Function is important in hemostasis

A

Platlets

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11
Q

Heart chamber sequence

A

Atrial systole
Ventricular systole
Diastole in all four chambers

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12
Q

Pulse formation

A

Left ventricular contraction creates wave of pressure in the aorta

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13
Q

Heart rate may not always match pulse rate

A

Arrhythmia

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14
Q

What is normal blood pressure

A

120/80

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15
Q

MAP

A

DBP+1/3(PP)

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16
Q

What components affect MAP

A

Heart rate
Stroke volume
Total peripheral resistance

17
Q

Gravity on blood pressure equation

A

MAP- [0.77 x cm above]= pressure above heart

18
Q

Sustained elevation of systemic arterial pressure

A

Hypertension

19
Q

Criteria for hypertension

A

SBP above 140
DBP above 90

20
Q

Causes of hypertension

A

Increased cardiac output or peripheral resistance

21
Q

Response to low blood pressure

A

Increase CO and/ or increase resistance

22
Q

Response to high blood pressure

A

Decrease CO and/ or decrease resistance

23
Q

Parasympathetic or sympathetic increase BP?

A

Sympathetic

24
Q

Parasympathetic or sympathetic decrease BP?

A

Parasympathetic

25
Q

Does cold stimulus increase or decrease blood pressure

A

Increase

Human Physiology lab (5 decks)

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