The respratory system

Question 1

What are the functions of the respiratory system (4)?

Answer 1

1) The taking in of oxygen.
2) The expelment of carbon dioxide.
3) Provides site of gas exchange.
4) Cleans and warms air coming into the body.

Question 2

Nostrils?

Answer 2

Function) Allows air in and out of the body.
Description) Two external openings of the nasal cavity.
Location) Found inside the nose.
Contributes to: 1) The taking in of oxygen.
2) The expelment of carbon dioxide.
3) Provides site of gas exchange.
4) Cleaning/warming the air coming into the body.

Question 3

Nasal Cavity?

Answer 3

Function) funnels, warms, and clean air.
Description) A large air-filled space inside/behind the nose (cavity).
Location) Back of the nose/the beginning of throat.
Contributes to) 1) The taking in of oxygen.
2) The expelment of carbon dioxide.
3) Provides site of gas exchange.
4) Cleaning/warming the air coming into the body.

Question 4

Pharynx?

Answer 4

Function) Entrance of air and food into the body.
Description) A hollow tube inside your neck.
Location) Starts behind the nasal cavity and ends at the trachea (windpipe).
Contributes to: 1) The taking in of oxygen.
2) The expelment of carbon dioxide.

Question 5

Larynx?

Answer 5

Function) A hollow tube that lets air pass from the throat (pharynx) into the trachea. Works by expelling air allowing speech.
Description) Box-like structure with cartilage.
Location) Top of the trachea.
Contribution: 2) The expelment of carbon dioxide.

Question 6

Trachea AKA?

Answer 6

AKA) The windpipe.
Function) Moves air to the lungs. Also filters air.
Description) A tube made from cartilage.
Location) Connects the larynx to the lungs
Contribution: 1) The taking in of oxygen.
2) The expelment of carbon dioxide.
3) Provides site of gas exchange.
4) Cleaning/warming the air coming into the body.

Question 7

Bronchi?

Answer 7

Function) Tubes that conduct air into the lungs.
Description) Tracheal extensions consisting of muscle and cartilage.
Location) The thoracic cavity.
Contributes to: 1) The taking in of oxygen.
2) The expelment of carbon dioxide.
4) Cleaning/warming the air coming into the body.

Question 8

Bronchioles?

Answer 8

Function) Moves air into alveoli.
Description) Microscopic tubes.
Location) The lungs.
Contribution: 1) The taking in of oxygen.
2) The expelment of carbon dioxide.
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Question 9

Alveoli?

Answer 9

Function) Site of oxygen/CO2 exchange.
Description) Hollow, thin-walled air sacs.
Location) At the end of bronchiole tubes.
Contribution) 1,2,3

Question 10

Diaphragm?

Answer 10

Function) Expands thoracic cavity.
Description) Dome shaped sleeve of muscle.
Location) At the bottom of chest cavity above your stomach.
Contribution) Aids in breathing.

Question 11

Pleura?

Answer 11

Function) A membrane that helps protect the lungs, reduce friction, and aids in lung expansion.
Description) Thin moist membrane.
Location) Around the lungs.
Contribution)