Lungs
Respiration
Breathing
Misc.
Review Questions
100
How many lobes does each lung have?
Right = 3 Left = 2
100

The structures between which external respiration takes place

Alveoli and capillaries

100
Air enters the body where?
Mouth and/or nose
100

When you inhale, the pressure inside your lungs becomes ____ compared to the outside air.

Lower

100

what are the blood cells that carry oxygen

RBC

200

What is the membrane that surrounds the lungs?

Pleural membrane

200
What is internal respiration?
transfer of oxygen from blood to the body cells and transfer of waste and carbon dioxide from body cells to blood
200

These are the 3 functions of the nasal cavity?

warm, moisten, filter air

200

What part(s) of the respiratory do gas exchange?

Alveoli

200

The main gas taken in during respiration.

Oxygen

300
Where does air go after it leaves the trachea (when inhaling)?
Primary Bronchi
300
What is external respiration?
Gas exchange between the air and blood
300

Where does the trachea lie in relation to the esophagus?

The trachea is in front of the esophagus

300

During exhalation, the diaphragm relaxes and moves ____ , causing lung pressure to increase

Upwards

300

The molecule that carries oxygen in red blood cells.

Hemoglobin

400
What structure resembles a bunch of grapes?
Alveoli
400
The taking in of air is called what?
Inhalation
400
What happens to your respiration rate when Carbon dioxide levels increase?
It increases you breath faster
400

When you travel to higher altitudes the atmospheric pressure will ______________.

decrease

400

The movement of gases from an area of high concentration to low concentration is called this

Diffusion

500

This muscle located below the lungs helps with breathing.

What is the diaphragm?

500

This is the tissue that blocks the trachea while eating.

Epiglottis 

500
Air travels from the pharynx to the ________ to the _____ and finally to the ______ where oxygen is exchanged with the blood stream.
trachea, bronchi, alveoli
500
How does oxygen enter the blood stream?
diffuse across the respiratory membrane in the alveoli into the capillaries
500

Diffusion requires ENERGY ?

NO

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