Chapter 3: The Internal Environment

Question 1

___________ - The body’s internal environment is maintained relatively constant and changes occur within narrow boundaries or limits. This is important for proper functioning and ultimately, survival of the body.

Answer 1

Homeostasis

Question 2

_________ - Consists of two compartments Plasma and nterstitial fluid.

Answer 2

ECF or Extracellular Fluid

Question 3

ISF is also called:

Answer 3

Intercellular Fluid

Question 4

___________ - Is the fluid within or outside the cells.

Answer 4

ICF or Intracellular Fluid

Question 5

What is the total body fluid of ICF?

Answer 5

2/3 of total body fluid

Question 6

What is the total body fluid of ECF?

Answer 6

1/3 of total body fluid

Question 7

What is the percentage of plasma in the the Extracellular Fluid compartment?

Answer 7

Plasma 20 - 25 %

Question 8

What is the percentage of Interstitial Fluid in the Extracellular fluid compartment?

Answer 8

Interstitial Fluid 75 - 80 %

Question 9

The fluid within cells is called:

Answer 9

intracellular fluid (ICF)

Question 10

The fluid outside body cells is called:

Answer 10

extracellular fluid (ECF)

Question 11

What is the narrow spaces between cells of tissues that fills with ECF?

Answer 11

interstitial fluid

Question 12

ECF within blood vessels is termed as:

Answer 12

blood plasma

Question 13

ECF within lymphatic vessels it is called:

Answer 13

lymph

Question 14

ECF that is in and around the brain and spinal cord is known as:

Answer 14

cerebrospinal fluid

Question 15

ECF in joints it is referred to as:

Answer 15

synovial fluid

Question 16

The ECF of the eyes is called:

Answer 16

aqueous humor and vitreous body

Question 17

Interstitial fluid is also called:

Answer 17

the body’s internal environment