Practical #4

Question 1

Function of nose?

Answer 1

Produces mucus
moistens and warms air
Resonance chamber
Smell receptors

Question 2

Function of paranasal sinuses?

Answer 2

Lighten skull
Warm
Moisten
Filter air

Question 3

Function of pharynx

Answer 3

Passage way for air and food

Facilitates exposure of immune system to inhaled antigens

Question 4

Function of larynx

Answer 4

Air passageway

Prevents food from getting in lower respiratory tract

Question 5

Function of trachea

Answer 5

Air passageway

Cleans, warms and moistens incoming air

Question 6

Function of Bronchiol tree

Answer 6

Air passageway connecting trachea with alveoli

Cleans, warms, and moistens incoming air

Question 7

Function of alveoli

Answer 7

Main sites of gas exchange

Question 8

Function of lungs?

Answer 8

House respiratory passages smaller than the main bronchi

Question 9

Function of pleurae?

Answer 9

Produce lubricating fluid and compartmentalize lungs

Question 10

Larynx cartilages? (9)

Answer 10

Thyroid, cricoid, epiglottis, arytenoid

Corniculate, cuneiform

Question 11

4 processes of respuration?

Answer 11

Pulmonary ventilation
External respiration
Transport
Internal respiration

Question 12

What is pulmonary ventilation?

Answer 12

Regular breathing

Question 13

What is external respiration?

Answer 13

The gas exchange between blood and the air-filled chambers in the lungs

Question 14

What happens during transport of respiratory gasses?

Answer 14

Transport gases between lungs and tissue cells using blood as the vehicle

Question 15

What happens during internal respiration?

Answer 15

Exchangw of gasses between systemic blood and tissue cells

Question 16

Where does gas exchange occur?

Answer 16

Respiratory zone structures

Respiratory membrane, alveoli, alveolar ducts, and respiratory bronchioles

Question 17

What are the neural controls for respiration?

Answer 17

Medulla and pons

Question 18

Site of gas exchange?

Answer 18

Alveoli

Question 19

What equipment is used to measure respiratory volumes?

Answer 19

Spirometer

Question 20

What is the innermost layer of the digestive tract?

Function?

Answer 20

mucosa
Secretes mucus, hormones, and digestive enzymes
Absorb
Protect against infection disease

Question 21

What is just external to mucosa in the digestive tract?

Function?

Answer 21

Submucosa
Connective tissue
Allows mucosa to move during peristalsis

Question 22

What is just external to submucosa?

Function?

Answer 22

Muscularis

Responsible for segmentation and peristalsis

Question 23

What is external to muscularis?

Function?

Answer 23

Serosa or visceral peritoneum

Protects abdominal organs

Question 24

What happens during peristalsis?

Answer 24

Wavelike contractions to move food through through alimentary tube organs

Question 25

What happens during segmentation?

Answer 25

Mixes food with digestive juices by shoving it up against the small intestine wall

Question 26

Function of enzymes?

Answer 26

Help speed up metabolism or chemical reactions in our bodies

Question 27

What effects enzyme efficacy?

Answer 27

Temperature, pH, concentration, concentration of substrate, activators

Question 28

Used to test for protein hydrolysis

Answer 28

BAPNA

Question 29

Used to test for presence of startch

Answer 29

IKI

Question 30

Used to test for fatty acids

Answer 30

Litmus

Question 31

Used to test for reducing sugars

Answer 31

Benedict’s