Lungs MCQs

_____ is the tube that connects the nose and mouth to the lungs

Loop of henle
Nephron
trachea
duodenum

Correct Answer

trachea

The bronchioles end in little clusters of sacs called _____

bronchi
alveoli
Loop of henle
Nephron

Correct Answer

alveoli

tiny, moist sacs where gas exchange occurs in the lungs are called?

bronchi
alveoli
Loop of henle
Nephron

Correct Answer

alveoli

_____ isresponsible for contracting and creating negative pressure to draw air into the lungs

diaphragm
trachea
Loop of henle
Nephron

Correct Answer

diaphragm

During _____ , the diaphragm muscle contracts (meaning it becomes smaller and moves down), allowing your rib cage to move upward and outward

Exhalation
inhalation
Both of these
None of these

Correct Answer

inhalation

During _____ , your diaphragm relaxes, your rib cage moves back downward and inward

Exhalation
inhalation
Both of these
None of these

Correct Answer

Exhalation

The place where your mouth connects to pharynx is called the _____

nasopharynx
oropharynx
metapharynx
None of these

Correct Answer

oropharynx

The place where your nose connects to pharynx is called the _____

nasopharynx
oropharynx
metapharynx
None of these

Correct Answer

nasopharynx

_____ is when a substance moves from an area of higher concentration to an area of lower concentration

osmosis
diffusion
Passive transport
Active transport

Correct Answer

diffusion

Number of alvoeli in our lungs is?

500 million
1.3 trillion
2 billion
300 million

Correct Answer

300 million