Cardiovascular and Respiratory Systems module quiz: O-Level Exercise and Sports Science (SEAB 6081) quiz

It receives blood from the lungs

It pumps blood around the whole body at high pressure

It holds more blood than the right ventricle

It pumps deoxygenated blood to the lungs

Cardiac output = heart rate + stroke volume

Cardiac output = stroke volume ÷ heart rate

Cardiac output = heart rate × stroke volume

Cardiac output = maximum heart rate - resting heart rate

155 ml per minute

600 ml per minute

1.07 ml per minute

6000 ml per minute

Capillaries

Veins

Arteries

Arterioles

A large total surface area

A thick muscular wall to pump air

Walls one cell thick for a short diffusion distance

A rich capillary supply maintaining a concentration gradient

Vasoconstriction of arterioles to the muscles

Increasing the number of red blood cells immediately

Vasodilation of arterioles to the muscles and vasoconstriction to inactive areas

Closing the valves in the veins

The number of heartbeats per minute

The volume of air breathed in per minute

The total volume of blood in the body

The volume of blood pumped from a ventricle in one beat

Nose/mouth → trachea → bronchi → bronchioles → alveoli

Trachea → nose → bronchioles → alveoli

Nose → alveoli → bronchi → trachea

Alveoli → bronchioles → trachea → nose

Both decrease

Both increase, raising minute ventilation

Breathing rate increases but tidal volume falls

Both stay the same; only heart rate changes

235 bpm

200 bpm

205 bpm

220 bpm

Plasma

Platelets

White blood cells

Red blood cells

To repay the oxygen debt and remove built-up carbon dioxide and lactic acid

To cool the body down quickly

Because the lungs cannot stop immediately

To increase the number of alveoli

Arteries

Veins

Capillaries

Aorta