Exam 3 Flashcards

1
Q

Which blood vessels have valves

A

Veins

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2
Q

One cell thick

A

Capillaries

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3
Q

Largest artery in the heart

A

Aorta

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4
Q

Wide lumen

A

Veins

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5
Q

Average volume of blood in the human body is:

3 liters

5 liters

8 liters

10 liters

A

5 liters

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6
Q

Arterial blood is ________ and venous blood is ________.

oxygenated; oxyhemoglobin

deoxygenated; oxyhemoglobin

oxygenated; deoxygenated

deoxygenated; oxygenated

A

Oxygenated, Deoxygenated

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7
Q

What is plasma made of?

A

Solutes, plasma proteins and water

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8
Q

What are the formed elements made of?

A

Thrombocytes
Leukocytes
Erythrocytes

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9
Q

90% of blood plasma is made of what?

A

Water

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10
Q

Red blood cells are efficient oxygen transport cells. Which is the major contributor to the significant oxygen-carrying capacity of the red blood cell?

A

Biconcave discs

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11
Q

Each hemoglobin molecule can transfer how many oxygen atoms
A) 1
B) 4
C) 250
E) 1 billion

A

4

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12
Q

What contains hemoglobin?

A

Erthrocytes

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13
Q

Functions to aid in defense against infections by microorganisms

A

Leukocytes

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14
Q

Cytoplasmic granules stain specifically with Wright’s stain

A

Granulocytes

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15
Q

Referred to as the “bacteria slayers”

A

Neutrophils

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16
Q

Most numerous leukocyte

A

Neutrophils

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17
Q

Digest parasitic worms that are too large to be phagocytized

A

Eosinophils

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18
Q

Least numerous leukocyte

A

Basophils

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19
Q

Lack visible cytoplasmic granules

A

Agranulocytes

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20
Q

Are cell fragments of megakaryocytes

A

Thrombocytes

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21
Q

Two types, T cells and B cells, play a crucial role in immunity

A

Lymphocytes

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22
Q

They leave circulation to enter tissues, differentiates into macrophages

A

Monocytes

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23
Q

Granules contain histamine

A

Basophils

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24
Q

Function is to assist the blood clotting mechanisms

A

Thrombocytes

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25
An elevated neutrophil count would be indicative of ________.
an acute bacterial infection
26
Vasodilation is a step in Hemostasis T or F
F
27
Platelets need to chemically react with exposed collagen fibbers to stick and form a glue like scene True or false
False
28
What is vasodilation
When the blood vessels widen allowing more blood to flow through them and lowering your blood pressure
29
Platelets need to chemically react with exposed collagen fibers to stick and form a glue-like scene False or true
True
30
Hypoxic meaning oxygen sufficient
False
31
Hematopoiesis is cell formation that occurs in the red bone marrow True False
True
32
Formation of white blood cells?
Leukopoisesis
33
Formation of red blood cells
Erythropoiesis
34
Formation of platelets
Thrombopoiesis
35
Formed by the lymphoid stem cell
Lymphocyte
36
Interleukins & CSFs= ?
White blood cells
37
Thrombopoietin= ?
Platelets
38
Erythropoietin=?
Red blood cells
39
Surface markers on erythrocytes are called:
Antigen’s
40
Our blood type is based on the presences or absences of two antigens known as agglutinogens on our RBCs
True
41
Universal donor?
O
42
Universal recipient
AB
43
Rh + blood can accept both positive and negative blood.
True
44
You have A+ blood type; what blood types can you accept?
O- and A-
45
You have B- blood type; what blood types can you accept?
O- & B-
46
Large impact on preload/stretch of ventricles before contraction
Venous Return
47
Volume of blood pumped each beat (EDV – ESV)
Stoke volume Middle
48
The amount of blood pumped each minute (SV x HR)
Cardiac output -5 liters
49
The proportion of EDV pumped out w/ each beat (SV/EDV x 100)
Ejection Fraction Good function heart is anything that is 50 % Higher means its higher <40% heart failure
50
The number of cardiac cycles each minute
Heart rate
51
Extrinsic response (ANS) that strengthens the heart contraction
Contractility
52
The degree of stretch on ventricles BEFORE contraction
Preload
53
The pressure the ventricles must overcome during contraction
After load
54
Nervous system that speeds up HR
Sympathetic
55
Nervous system that slows down HR
Parasympathetic
56
Has a higher cardiac output
Trained individual
57
Has a lower cardiac output
Untrained individual
58
“Blood reservoirs”
Veins
59
“Resistance vessels”
Aterioles
60
"Functional unit"
Capillaries
61
Pressure reservoirs
Arteries
62
Holds 60-65% of our blood volume
Veins
63
Low pressure vessels
Veins
64
High pressure. Vessels
Arteries
65
Contain one way valves
Veins
66
Thick tunica media
Arteries
67
Away
Arteries
68
Back to the heart
Veins
69
Controls blood flow into capillary beds
arterioles
70
Contains smooth muscle and sheets of elastin; critical in regulating the circulatory system.
Tunica media
71
Inner most layer contains endothelium
Tunica Intima
72
Contains collagen fiber that protects and reinforces the vessels.
Tunica externa
73
What vessel is considered the "Functional Unit"?
Capillaries
74
Smaller arteries that lead to capillary beds.
Arterioles
75
Porous, allow fluids and WBCs into tissues; an extension of the capillary beds that lead into veins
Venules
76
Has thin walls and larger lumen diameters; carries blood under low pressure.
Veins
77
In comparison to arteries, veins have ________ amount of smooth muscle.
A smaller
78
In comparison to arteries, veins have ________ capacity to hold blood.
A larger
79
In comparison to arteries, veins have ________ resistance to blood flow.
A smaller
80
Can contain about 60-65% of total blood volume:
Veins
81
Have the lowest velocity of blood flow:
Capillaries
82
Considered to be capacity vessels
Veins
83
Contains only the tunica intima tissue layer (endothelial cells):
Capillaries
84
Only blood vessels contain the presence of valves
Veins
85
The tunica media is the thickest in this vessel
Arteries
86
If blood pressure increases, blood flow____.
Increases
87
If resistance increases, blood flow
Decreases
88
Blood resistance increases if:
Blood vessel lengthens,blood viscosity increases,blood vessels diameter decreases
89
Blood pressure between 15-35mmHg
capillary blood pressure
90
Blood pressure between ~15mmHg
Venous blood pressure
91
What blood pressure is what vessel?
Aorta
92
Lowest blood pressure in what vessel
Venue cavae