Respiratory System

Question 1

What is Cellular Respiration?
C6H12+6O2

Answer 1

The process by which oxygen and the food we eat , in the form of sugar (glucose) , is transformed into CO2 (a waste product we exhale), water, and energy (used by the body). = 6O2+6H2O+energy

Question 2

What are the organs of the Respiratory System? (7 organs)

Answer 2

1. Nasal Cavities
2. Pharynx
3. Larynx
4. Trachea
5. Bronchi
6. Bronchioles
7. Alveoli

Question 3

What is the function of the nasal cavities?

Answer 3

Contains cilia (small hairs) that filter dust particles & bacteria, also contains blood vessels that warm the air & mucous to moisten the air.

Question 4

What is the function of the pharynx?

Answer 4

Part of the respiratory & digestive systems, both air & food pas through it.

Question 5

What two organs does the larynx connect?

Answer 5

Connects the pharynx to the trachea.

Question 6

Why is the larynx made up of cartilage?

Answer 6

To allow flexibility & protects the vocal cords.

Question 7

Where is the epiglottis found?

Answer 7

In the larynx.

Question 8

What is the function of an epiglottis?

Answer 8

Opens the opening of the trachea when exhaling, & closes the opening when swallowing to allow the food to go through the esophagus.

Question 9

What would happen if food goes through/into the trachea?

Answer 9

You would most likely cough & choke in order to try and get it out of your system. If not, infections may be caused in the bronchi or lungs. (Bronchitis & Pneumonia)

Question 10

How do the vocal cords produce sound?

Answer 10

Our vocal cords vibrate when we exhale to produce/create sound.

Question 11

Do women and men have the same shape of vocal cords?

Answer 11

No, men’s vocal cords are thicker and longer creating a lower pitched sound, while women have thinner and shorter vocal cords, which lead to having a more high pitched sound.

Question 12

What is the function of the trachea?

Answer 12

A long tube made up of rings of cartilage to keep it open at all times and to give it strength. It is also lined with cilia that pushes dust particles and bacteria to the mouth and away from the lungs.

Question 13

What two organs does the trachea connect?

Answer 13

Connects the larynx to the bronchi.

Question 14

What is a Bronchi/Bronchus?

Answer 14

Trachea splits into two bronchi, one on each side of the lung. Made of cartilage, cilia, & mucous.

Question 15

What are bronchioles?

Answer 15

Divided from the bronchi into smaller tubes (bronchioles), and end in a cluster of alveoli.

Question 16

What is the function of alveoli?

Answer 16

Process where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out.

Question 17

What is Diffusion?

Answer 17

The process in which particles transfer through thin membranes from an area of high concentration to an area of low concentration.

Question 18

After cellular respiration, our bloodstream has a high concentration of carbon dioxide (CO2) where does this diffuse to?

Answer 18

Carbon dioxide (CO2) diffuses from the capillaries in our blood stream into the alveoli. which then makes its way back up the respiratory system allowing us to exhale.

Question 19

Oxygen (O2) travels from the lungs, an area of high concentration, to an area of low concentration. What area does the oxygen from the lungs travel to?

Answer 19

Our bloodstream through tiny vessels called capillaries.

Question 20

True or false: CO2 (carbon dioxide) is bad for our body.

Answer 20

True.

Question 21

True or false: During inhalation, the diaphragm contracts and moves upwards.

Answer 21

False. During inhalation, the diaphragm contracts and moves down towards the abdomen.

Question 22

When inhaling, the volume of your lungs increase, does this cause an increase or decrease in pressure?

Answer 22

This causes a decrease in pressure, the air pressure in the lungs is therefore lower than the pressure outside the body.

Question 23

True or false: When we inhale & gases move into the body, it uses the principle of diffusion.

Answer 23

True. The gases come from an area of high concentration (the air) and then travels into our lungs, an area of low concentration.

Question 24

During exhalation the diaphragm moves upward, does this cause an increase or decrease in volume inside the lungs.

Answer 24

This causes a decrease in volume inside the lungs.

Question 25

During exhalation, the volume inside the lungs decrease, does this cause an increase or decrease in pressure?

Answer 25

This causes an increase in pressure.

Question 26

If there’s an increase in pressure in the lungs during exhalation, is the air pressure outside the lungs greater or lower?

Answer 26

The air pressure outside the lungs is lower than the air pressure inside the lungs.