Chapter 1 General Function And Components

Question 1

What is blood?

Answer 1

Blood is a vital fluid tissue that circulates within the cardiovascular system.

Question 2

What is the total blood volume in a 70kg man?

Answer 2

5600ml

Question 3

What are the main functions of the blood?

Answer 3

1. Transportation
2. Defense.
3. Hemostatic
4. Homeostatic

Question 4

What happens in transportation?

Answer 4

Blood acts as a carrier medium for many substances such as glucose, oxygen (O2), carbon dioxide (Co2), hormones, and final metabolism products.

Question 5

What happens in defense?

Answer 5

White blood cells provide the body with powerful defenses against invading microorganisms and tumors.

Question 6

What happens in Hemostatic?

Answer 6

Substances in the blood that act together to stop bleeding when a blood vessel is injured.

Question 7

What happens in Homeostatic

Answer 7

Blood performs an important function in keeping the composition of the internal environment constant.

Question 8

Blood is composed of two main parts:

Answer 8

Plasma and Cellular elements.

Question 9

What is plasma?

Answer 9

It is the fluid part of the blood around 55% of total blood volume.

Question 10

What are Cellular Elements?

Answer 10

It is the remaining 45% of the blood volume.

Question 11

What do the cellular elements consist of?

Answer 11

Red blood cells or corpuscles, white blood cells (wbc’s), and plasma (thrombocytes).