3.1.3- Tissues In The Gaseous Exchange System

Question 1

Explain what villus ted epithelium is.

Answer 1

A later T cells with many hair like protrusions called cilia.

Question 2

Explain what elastic fibres are.

Answer 2

Protein fibres that can deform and then recoil to their original shape.

Question 3

Explain briefly what goblet cells are.

Answer 3

Mucus secreting cells.

Question 4

explain briefly what smooth muscle is.

Answer 4

Involuntary muscle that contracts without the need for conscious thought.

Question 5

List the five tissues that are found within the gaseous exchange system.

Answer 5

Cartilage 
Smooth muscle
Elastic fibres
Ciliated epithelium
Goblet cells

Question 6

What are the two parts of the gaseous exchange system that have all five types of tissue?

Answer 6

The trachea and the bronchi.

Question 7

What is the one type of tissue that is found in all parts of the gaseous exchange system in mammals- the alveoli, trachea, bronchi and bronchioles?

Answer 7

Elastic fibres.

Question 8

How is cartilage found in the trachea compared to in the bronchi?

Answer 8

In the trachea, it is in large, C shaped pieces and in the bronchi it is found in small chunks.

Question 9

What are the different types of tissue found within the trachea?

Answer 9

Cartilage (large C shaped pieces), smooth muscle, elastic fibres, goblet cells and ciliated epithelia.

Question 10

Explain what different types of tissue are found within the bronchi.

Answer 10

Smaller pieces of cartilage, smooth muscle, elastic fibres, goblet sells and ciliated epithelia.

Question 11

Explain what different toes of tissue is found in the larger bronchioles.

Answer 11

Smooth muscle, elastic tissue, goblet cells and ciliated epithelia.

Question 12

What types of tissue are found in the smaller bronchioles?

Answer 12

Smooth muscle, elastic fibres and ciliated epithelium.

Question 13

Explain what types of tissues are found in the smallest bronchioles.

Answer 13

Elastic fibres and NON ciliated epithelia.

Question 14

Explain what type of tissue is found I thin the alveoli.

Answer 14

Elastic fibres and NON ciliated epithelia.

Question 15

Explain the three things that the tracheal, the bronchi and the bronchioles must have in order to be effective air passage systems.

Answer 15

• be large enough to allow sufficient air flow without obstruction
• be flexible to allow movement
• be supported to prevent collapse when the air pressure inside is low during inspiration

Question 16

Explain the function of cartilage within the gaseous exchange system.

Answer 16

It provides support and helps prevent the collapse of the trachea and bronchi during inspiration.

Question 17

Explain the function of cartilage specifically within the trachea.

Answer 17

In he trachea, the cartilage is in C shaped rings that allow for flexibility and space for food to pass down the oesophagus.

Question 18

Explain what the smooth muscle within the trachea, bronchi and larger and smaller bronchioles does.

Answer 18

It controls their diameter. It relaxes during exercise to widen lumen snd create less airflow resistance so air can flow in and out of lungs easier and it contracts for the opposite effect.

Question 19

Explain what the function of the elastic fibres is within the alveoli, bronchi, trachea and bronchioles.

Answer 19

It helps with the breaking process. They stretch during inspiration and recoil to their original shape and size in order to push air out.

Question 20

What is they nation of the ciliated epithelia within the trachea, bronchi, larger and smaller bronchioles?

Answer 20

It beats the music band to prevent mucus build up. It moves music from the alveoli to the throat where the mucus is swallowed. Prevents mucus build up that could lead to infection.

Question 21

What is the function of goblet calls found within the trachea, bronchi and larger bronchioles?

Answer 21

It releases music that traps pathogens to help protect the lungs from infection by these pathogens. They are found between ciliated epithelia Cells.

Question 22

What is cartilage?

Answer 22

A form of connective tissue.