Respiratory system P1

Question 1

Cells need energy for

Answer 1

their chemical activity to maintain homeostasis.

Question 2

Respiratory system provides

Answer 2

the route for O2 to gain entry and CO2 to be excreted.

Question 3

As it moves through passages to lungs it is:

Answer 3

Warmed/cooled to body temp.
Moistened with water vapour.
Cleaned as particles stick to mucus lining membrane.

Question 4

The roof of the nose is the

Answer 4

Cribriform plate, Ethmoid bone, Sphenoid bone, Frontal bone, Nasal bone.

Question 5

The floor of the nose is a

Answer 5

Hard and Soft palate maxilla (jaw), Ethmoid, Inferior Conchae.

Question 6

The functions of the nose are

Answer 6

-Filters - Olfactory Function (smell) -Warms - Nasolacrimal Ducts (drains tears from eyes)
-Moistens

Question 7

How long is the pharynx?

Answer 7

12cm long

Question 8

What are the 3 parts of the pharynx?

Answer 8

Nasopharynx (ciliated columnar), Oropharynx (stratified squamous, fibrous tissue, smooth muscle) and the Laryngopharynx.

Question 9

What are the functions of the pharynx?

Answer 9

-Passageway for air and food - Taste
-Warms/ Humidifies - Speech
-Hearing - Protection

Question 10

What is the larynx?

Answer 10

Root of the tongue (hyoid bone) – to the trachea

Question 11

What are the functions of the larynx?

Answer 11

-Production of sound - Cough Reflex
-Volume, pitch, resonance - Filters, warms, moistens
-Protection of lower airways

Question 12

How long is the trachea?

Answer 12

12cm to 13cm in adults

Question 13

How many c-shaped cartilages does the trachea have?

Answer 13

16-20 incomplete

Question 14

What are the three layers of tissue?

Answer 14

• Outer layer (fibrous and elastic tissue)
• Middle layer (cartilage and muscle tissue)
• Inner layer (ciliated columnar epithelium)

Question 15

What are the functions of the trachea?

Answer 15

-Support and patency
- Cough Reflex
-Mucociliary Escalator
- Warms, moistens and filters the air

Question 16

The right bronchi is

Answer 16

wider, shorter and 2.5cm long

Question 17

The left bronchi is

Answer 17

narrower and 5cm long

Question 18

How many lobes do the right lung have

Answer 18

3 lobes

Question 19

How many lobes do the left lung have

Answer 19

2 lobes

Question 20

Two types of pleura

Answer 20

parietal and visceral

Question 21

What are the alveoli?

Answer 21

small air salts that make up the lungs.

Question 22

Tidal information is

Answer 22

the volume of air moved into or out of the lungs during a normal breath.

Question 23

Volume is

Answer 23

approximately 500ml per inspiration.

Question 24

Residual volume is

Answer 24

the amount of air left in the lungs after a full exhalation. This air can’t be expelled, and it helps keep the alveoli open.

Question 25

A healthy adult should breathe

Answer 25

around 16 times in a minute.

Question 26

Ten breathes a minute indicates a

Answer 26

weak respiratory system.