Which chamber of the heart has the thickest wall, and why?

The left ventricle, because it pumps blood the furthest, around the whole body

A performer has a heart rate of 80 beats per minute and a stroke volume of 100 millilitres. What is their cardiac output?

8000 millilitres per minute (8 litres per minute)

The biceps, contracting concentrically (shortening)

A contraction where the muscle stays the same length with no movement, such as a plank

Glucose produces energy plus lactic acid

Cardiac hypertrophy and a lower resting heart rate (bradycardia)

The extra oxygen taken in after exercise to break down lactic acid and return the body to rest

Pulse-raiser, stretching and mobility, skill-specific practice

10questions. Pick an answer and you'll see why right away.

Which chamber of the heart has the thickest wall, and why?
A performer has a heart rate of 80 beats per minute and a stroke volume of 100 millilitres. What is their cardiac output?
Where in the lungs does gaseous exchange take place?
During the upward phase of a biceps curl, which muscle is the agonist and what is it doing?
What is an isometric contraction?
Which word equation describes anaerobic respiration?
A 15-year-old's maximum heart rate is used for training. What is it, using the standard estimate?
Which of these is a long-term adaptation (not a short-term effect) of regular aerobic training?
What is the oxygen debt (EPOC)?
What are the three phases of a typical warm-up, in order?