RESPIRATORY SYSTEM

Question 1

sustains tissue functions in the human body by facilitating the efficient exchange of oxygen and carbon dioxide with the external environment.

Answer 1

Respiratory System

Question 2

Also called breathing, this process is the mechanical movement of the air into and out of the lungs.

Answer 2

Pulmonary Ventilation

Question 3

This phase refers to the exchange of gases that occurs between the alveoli and the pulmonary capillaries.

Answer 3

External Respiration

Question 4

This phase refers to the exchange of gases that occurs between the blood and body tissues.

Answer 4

Internal Respiration

Question 5

This phase involves the circulatory system, which transports gases between the lungs and tissues.

Answer 5

Transport of Gases

Question 6

serves as the passageway of air into the lungs.

Answer 6

Conducting zone

Question 7

consists of structures that facilitate the actual gas exchange

Answer 7

Respiratory zone

Question 8

This structure serves as the primary entrance of air into the respiratory tract.

Answer 8

NOSE

Question 9

Its primary opening, the _____, lead to the nasal cavity, the inner
chamber.

Answer 9

nostrils

Question 10

consists of nasal hairs (vibrissae) and cilia, both of which filter the air.

Answer 10

NASAL CAVITY

Question 11

The throat serves as a passageway for both air and food into the
esophagus.

Answer 11

PHARYNX

Question 12

This cartilaginous structure helps close the entrance to the trachea
when swallowing food.

Answer 12

EPIGLOTTIS

Question 13

This structure helps in sound production and also protects the trachea from food aspiration.

Answer 13

LARYNX

Question 14

The windpipe connects the larynx to the rest of the lungs.

Answer 14

TRACHEA

Question 15

It consists of cilia that help propel debriscontaining mucus back
into the esophagus.

Answer 15

TRACHEA

Question 16

These two branches penetrate into each of the lungs as they originate from the trachea.

Answer 16

BRONCHI

Question 17

consists of cartilage and smooth muscles that prevent it from collapsing.

Answer 17

bronchus

Question 18

branch up to approximately 23 times to form the smaller bronchioles.

Answer 18

bronchi

Question 19

are the primary respiratory organs that are elastic and can expand to change air pressure.

Answer 19

LUNGS

Question 20

are thinwalled structures that are rich in capillaries, which allow efficient gas exchange.

Answer 20

ALVEOLI

Question 21

Also referred to as the pulmonary ventilation

Answer 21

Breathing

Question 22

Diaphragm contracts, moves down

Answer 22

Inhalation

Question 23

Diaphragm relaxes, moves up

Answer 23

Exhalation