Circulatory & Lymphatic & Immune Systems Flashcards Preview

Phlebotomy for Macie > Circulatory & Lymphatic & Immune Systems > Flashcards

Flashcards in Circulatory & Lymphatic & Immune Systems Deck (16)
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1

In the circulatory system, gas exchange occurs in the

Capillaries

2

Which blood vessels are a single cell in thickness?

Capillaries

3

Veins and arteries are composed of how many layers?

3

4

A characteristic of arteries is

They have a thick muscle layer lining the lumen

5

An average adult has _______ L of blood.

5-6

6

Plasma constitutes _______ % of total blood volume.

55% (always little over half)

7

Another name for a WBC is

Leukocyte

8

The main function of leukocytes is to

Protect body against infection

9

Which leukocyte is known as a phagocyte?

Neutrophil

10

Platelets remain in the circulation for

9-12 days

11

Which cellular component is responsible for the transport of hemoglobin?

RBCs

12

Which laboratory test does assist in diagnosing HIV infection?

aPTT

13

A group of inherited disorders marked by increased bleeding times is known as

Hemophilias

14

Which organs are included in the lymphatic system?

Spleen, Thymus, Tonsils

15

Helper T cells are needed to make

Antibodies

16

Platelets are also called?

Thrombocytes