General questions

Question 1

Mechanoreceptors

Answer 1

Respond to mechanical deformation of tissue/cell membranes by stretch, indentation or hair movement

• skin mechanoreceptors
• muscle/tendon mechanoreceptors
• baroreceptors/stretch receptors of visceral organs
• hair cells

Question 2

Chemoreceptors

Answer 2

Receptors (specialised nerve cells) that respond to chemical stimuli

Question 3

Nociceptors in the skin that convey pain

Answer 3

Free nerve endings

Question 4

Mechanoreceptors involved in deep Pressure

Answer 4

Pacinian corpuscle

Question 5

Mechanoreceptors involved in Crude touch

Answer 5

Krause’s endbulb

Ruffini’s ending

Question 6

Fast pain fibres project to the …

Answer 6

Thalamus and cortex (fine localisation of pain)

Question 7

Slow pain fibres project to the …

Answer 7

brainstem reticular formation (central inhibition and arousal effects of pain)

Question 8

Light touch mechanoreceptors

Answer 8

Meissner’s corpuscle, Merkel’s disk, hair root plexus

Question 9

Nerve fibres involved in pain transmission

Answer 9

A delta - FAST - sharp initial pain

C fibres - SLOW - diffuse, throbbing pain (long-lasting)

Question 10

Myelinated nerve fibres

Answer 10

A delta

Question 11

Unmyelinated nerve fibres

Answer 11

C fibres