Respiratory System

Question 1

Pharynx

Answer 1

Air from the nasal cavity pass through here

Question 2

Larynx

Answer 2

Air passes through the larynx, going to and from the lungs. Contains the vocal cords which vibrate to make sound

Question 3

Trachea

Answer 3

“Windpipe” Carries air to and from the lungs. Is lined with a mucous membrane and cells with cilia (hair like process helping move material). Cilia moves mucous and trapped particles upwards

Question 4

Ribs

Answer 4

Form the frame/framework of the chest

Question 5

Intercostal Muscles

Answer 5

Muscles between ribs. Move the rib cage upwards and outwards to increase the volume of the chest cavity and the lungs when breathing in

Question 6

Lungs

Answer 6

Occupy all of the chest cavity expect the parts that have been taken up by the heart. Lungs are covered by a Pleural Membrane that also lines the inside of the chest. Pleural Fluid between the two layers holds the lungs against the inside of the chest

Question 7

Nasal Cavity

Answer 7

Filters, warms and moistens air before it enters the lungs. Contains smell receptors. Acts as a resonating chamber for speech sounds. Hairs and mucus trap dust

Question 8

Epiglottis

Answer 8

A flap of tissue that during swallowing closes off the trachea so that food and liquid can’t enter the lungs

Question 9

Bronchi

Answer 9

Two primary bronchi branch from the trachea, they then divide into secondary and tertiary bronchi

Question 10

Bronchioles

Answer 10

Fine tubes with walls of smooth muscles. The finest end in groups of air sacs, the alveoli

Question 11

Diaphragm

Answer 11

A muscle that separates the chest from the abdomen. It contracts and flattens downwards, thereby increasing the volume of the chest cavity and lungs during breathing in (inspiration)

Question 12

Alveoli

Answer 12

Tiny air sacs that make up most of the lung . Occur in clusters and have thin walls that are well supplied with blood capillaries for the exchange of oxygen and carbon dioxide