Chapter 19 Flashcards Preview

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Flashcards in Chapter 19 Deck (15):
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Artery

Blood vessel that carries blood away from the heart, and has thick, elastic walls made of connective tissue and smooth muscle tissue.

1

Atriums

Two upper chambers of the heart that contract at the same time during a heartbeat.

2

Capillary

Microscopic blood vessel that connects arteries and veins; has walls one cell thick, through which nutrients and oxygen diffuse into body cells, and waste materials and carbon dioxide diffuse out of body cells.

3

Coronary Circulation

Flow of blood to and from the tissues of the heart.

4

Hemoglobin

Chemical in red blood cells that carries oxygen from the lungs to body cells, and carries oxygen from the lungs to body cells back to the lungs.

5

Lymph

Tissue fluid that has diffused into lymphatic capillaries.

6

Lymphatic System

Carries lymph through a network of lymph capillaries and vessels, and drains it into large veins near the heart; helps fight infections and diseases.

7

Lymph Nodes

Bean-shaped organs found throughout the body that filter out microorganism and foreign materials taken up by the lymphocytes.

8

Lymphocyte

A type of white blood cell that fights infections.

9

Plasma

Liquid part of blood, made mostly of water, in which oxygen, nutrients, and minerals, are dissolved.

10

Platelet

Irregularly shaped cell fragment that helps clot blood and releases chemicals, that help form fibrin.

11

Pulmonary Circulation

Flow of blood through the heart to the lungs and back to the heart.

12

Systemic Circulation

Largest part of the circulatory system, in which oxygen rich blood flows to all the organs and body tissues, except the heart and lungs, and oxygen-poor blood is returned to the heart.

13

Vein

Blood vessel that carries blood back to the heart, and has one-way valves that keep blood moving toward the heart.

14

Ventricles

Two lower chambers of the heart, that contract at the same time, during a heartbeat.