Respiratory and Circulatory System

Front

What gas do we require to break down food?

Back

Oxygen

Front

What keeps the windpipe open?

Back

Cartilage

Front

The way gases move between the capillaries and alveoli is called...?

Back

Diffusion

Front

What is the muscle under the lungs called?

Back

Diaphragm

Front

What is the flap of tissue which prevents food entering the trachea called?

Back

epiglottis

Front

The red pigment ................... carries about 97% of the oxygen in our red blood cells

Back

haemoglobin, hemoglobin, oxyhaemoglobin

Front

Air is moistened, warmed and ................ as it passes through the nose.

Back

filtered, cleaned, cleansed

Front

The ribs move up and out while the diaphragm contracts. This active action causes?

Back

inhalation

Front

What is true about the process of inhalation?

Back

Diaphragm is contracted.

Front

What is true about the process of exhalation?

Back

Air pressure in the cavity increases