Respiration And Circulation

Question 1

Phases of respiration

Answer 1

Ventilation, diffusion, transportation and utilization

Question 2

Functions of the oral-nasal cavities

Answer 2

Filters ingested air
Humidifies and heats air
Protects lungs from dryness or cooling

Question 3

Function of the trachea

Answer 3

Divides into two passages serving as air passages to the lungs

Question 4

Functions of the lungs

Answer 4

Moves oxygen into the capillaries

Removes C02 from capillaries

Question 5

Function of the alveoli

Answer 5

Tiny air sacs in the lungs which serve as a gas exchange through diffusion. Provide excellent blood supply

Question 6

Pressure breathing

Answer 6

Passive inhalation

Activate exhalation

Question 7

OBOGS

Answer 7

Onboard oxygen generating system

94.5% oxygen at the Max setting and 60 to 70% and the normal setting

Question 8

Normal breathing

Answer 8

Active inhalation

Passive exhalation

Question 9

Tidal volume

Amount of gas inhaled or exhaled with each breath

Answer 9

500 mm

Question 10

The heart

Answer 10

4 chambers with two pumps (to lungs (pulmonary) and to other tissues (systemic))

Question 11

Blood composition

Answer 11

55 % plasma

45% red/white cells and platelets

Question 12

Purpose of red blood cells

Answer 12

Transport O2 and C02

Question 13

Factors affecting delivery of oxygen to tissues

Answer 13

Altitude
G’s
Toxic gases

Question 14

Normal breathing rate

Answer 14

12-16 times per minute