May 2024 topics

Identify the correct pairing of endocrine gland and hormone.

• Adrenal cortex

  Melatonin

• Anterior pituitary

  Cortisol

• Pineal

  Growth hormone

• Thyroid

  Calcitonin

What type of signalling involves hormones travelling in tissue fluid and stimulating nearby cells?

• Autocrine

• Endocrine

• Exocrine

• Paracrine

How many axons does a multipolar neurone have?

• 1

• 2

• 3

• Lots

During the relative refractory period a neurone is:

• At rest

• Depolarised

• Hyperpolarised

• Unresponsive

In the mammalian heart, electrical activity is passed from the atria to the ventricles via the:

• Atrial bundles

• Atrioventricular node

• Bundle of His

• Sinoatrial node

In an ECG trace, the T wave corresponds to:

• Depolarisation of the atria

• Depolarisation of the ventricles

• Repolarisation of the atria

• Repolarisation of the ventricles

Which of the following statements about the sympathetic nervous system is false?

• It counteracts the parasympathetic nervous system

• It decreases the heart rate

• It is stimulated in stressful situations

• It prepares the body for energy expenditure

Which type(s) of skeleton use(s) leverage?

(Select all that apply.)

• Endoskeleton

• Exoskeleton

• Hydrostatic skeleton

Which of the following are components of a haemoglobin subunit?

(Select all that apply.)

• Cu²⁺ ion

• Fe²⁺ ion

• Globin chain

• Haem group

What is the effect of increasing temperature on the affinity of haemoglobin for oxygen?

• Decreased affinity

• Increased affinity

• No change