Respiratory System

Question 1

What does the respiratory system do?

Answer 1

Lets air in and out of the body

Question 2

What does the respiratory system provide?

Answer 2

Provides oxygen to the body cells for burning food to produce energy

Question 3

What is removed by the respiratory system?

Answer 3

Carbon dioxide waste from the body

Question 4

What occupies most of the chest cavity?

Answer 4

The lungs (‘2 Bags’)

Question 5

What works the lungs?

Answer 5

Muscles

Question 6

What links the lungs to the nose and mouth?

Answer 6

The Trachea

Question 7

How do we breathe: Part1 nose

Answer 7

Breathe in air through nose (or mouth). Air grows warm and moist on passing through the nasal passage and pharynx

Question 8

How do we breathe: Part 2 trachea + bronchi

Answer 8

Air continues down the windpipe/trachea, except when shut off by the epiglottis as you swallow. Air then passes through two bronchi to the lungs

Question 9

How do we breathe:Part 3 inside the lungs

Answer 9

Inside the lungs bronchi branch out into smaller tubes called bronchioles. Bronchioles end in alveolar sacs (alveoli)

Question 10

Alveoli

Answer 10

Clusters of tiny chambers at the end of bronchioles

Question 11

What supports a network of capillaries?

Answer 11

Thin walls of alveoli

Question 12

Gasses pass through what (respiratory)?

Answer 12

Through alveolar walls between the lungs and blood supply

Question 13

What operates the lungs when breathing?

Answer 13

The diaphragm and muscles that move the ribs up and out

Question 14

Diaphragm:

Answer 14

A muscular sheet below the lungs

Question 15

How do we breathe in?

Answer 15

Ribs move up and out and the diaphragm moves down. This expands the chest cavity and draws air into the lungs

Question 16

How do we breathe out?

Answer 16

Ribs move down and in and the diaphragm moves up. This contracts the chest cavity and forces air out of the lungs

Question 17

What do vocal sounds depend on?

Answer 17

Special structures in the body’s airways

Question 18

How does the voice work?

Answer 18

Breathed out air flows through the larynx. Vocal cords form a V- shaped opening across the larynx. When we speak, these tauten, narrowing the opening. Breathed out air vibrates the cords; the longer the cords the higher the pitch.

Question 19

What gives resonance? (voice)

Answer 19

The nasal cavity

Question 20

How do sounds vary when we speak?

Answer 20

With positions of the tongue, lips and teeth

Question 21

Larynx

Answer 21

Voice box; a broad part of the upper windpipe protected by tough cartilage

Question 22

Vocal cords

Answer 22

Two bands of tissue across the larynx