Respiratory System

Question 1

Function of Respiratory System

Answer 1

Responsible for intake of oxygen gas and removing carbon dioxide from the body.

Question 2

Upper Respiratory Tract (10 steps)

Answer 2

1) Nose
2) Nasal Cavity
3) Olfactory Membrane
4)Mouth
5) Pharynx (which consists of 6-8)
(6) Nasopharynx to 7) Oropharynx to 8) Laryngopharynx)
9) Epiglottis
10) Larynx

Question 3

Function of each part of the Upper Respiratory Tract (9 steps, skip pharynx)

Answer 3

1) Nose- primary body part for intake of air & out take of carbon dioxide.
2) Nasal Cavity- covered with hair to stop intake of contaminents
3) Olf Mem- sense of smell
4) Mouth- allows for larger intake of air
5) Nasopharynx- passes air from nose to Oropharynx
6) Oropharynx- air from mouth enters directly here
7) Laryngopharynx- diverts air & good that enters pharynx
8) Epiglottis- flap that ensures air enters trachea & food enters esophogus.
9) Larynx- voice box (in between pharynx & trachea)

Question 4

Lower Respiratory Tract (4 Steps)

Answer 4

1) Trachea
2) Bronchi
3) Lungs
4) Diaphragm & Intercostal Muscles

Question 5

Functions of each part of the Lower Respiratory Tract (TBLDI)

Answer 5

1) Trachea- contains goblet cells & celia which have fringes to push mucus up & out of airways
2) Bronchi- contain bronchioles which allow body to expand when more oxygen is needed & constrict in danger & alveoli which is where gas exchanges occur.
3) Lungs- contain bronchi, bronchioles, blood vessels, and alveoli. Surrounded by Pleura
4) Diaphragm- made of skeletol muscle tissue
5) Intercostal Muscles- assist with breathing

Question 6

Inhalation vs. Exhalation

Answer 6

Inhalation (inspiration)- diaphragm contacts, lungs to expand, and external intercostal muscles contract to expand the rib cage.
Exhalation (expiration)- internal intercostal muscles contract, thoracic cavity become smaller, and push air out of lungs.

Question 7

Tidal Volume vs. Vital Capacity
What is Eupnea?

Answer 7

Tidal Volume is the capacity of air during shallow breathing (0.5 liters)
Vital Capacity is the capacity of air during deep breathing (3-5 liters)
Eupnea is the breathing our body does when resting (mostly shallow breaths with occasional deep breathing)