Ch 21 - Blood Flashcards

1
Q

What is hematocrit?

A

Percentage of volume of all formed elements in blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What makes up the buffy coat in a whole blood centrifugation?

A

Platelets and leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is hemopoiesis/hematopoiesis?

A

Production of formed elements occurring in red marrow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Define Rouleau

A

The single file lining up of red blood cells as they pass through small blood vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How long do RBC’s live?

A

120 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is anemia?

A

Below normal oxygen carrying capacity of the blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What measure indicates anemia?

A

Low hematocrit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is pernicious anemia?

A

body doesn’t make enough RBC’s due to lack of B12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is hemolytic anemia?

A

RBC’s are destroyed faster than the bone marrow can produce them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is polycythemia?

A

A high number of RBCs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What types of cells are Granulocytes?

A

Neutrophils
Eosinophils
Basophils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What types of cells are Agranulocytes?

A

Lymphocytes
Monocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Characteristic of Neutrophils

A

First to appear at an infection, and phagocytize bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Characteriistic of Eosinophils

A

Protect against infections by parasitice worms, and increase in numbers during allergic reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Describe Basophils

A

Release histamines in damaged tissues causing vasodilation, also release heparin an anticoagulant.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the two types of lymphocytes?

A

T lymphocytes
B lymphocytes

17
Q

Describe T lymphocytes

A

Kill infected or cancerous cells

18
Q

Describe B lymphocytes

A

Produce antibodies against specific antigens and deactify toxins

19
Q

Describe monocytes

A

Very mobile agranulocytes which phagocytose bacteria, viruses, and virus infected cells

20
Q

What is leukemia

A

Cancer that causes overproduction of abnormal WBCs which accumulate and cause organs to stop functioning

21
Q

What is a thrombus?

A

A blood clot