Nervous System A and P 2, Sensory neurones

Peripheral sensory neurones typically have:

a. cell bodies located in the ventral horn of the spinal cord

b. cell bodies which act as peripheral sensory detectors

c. a long axon but a short dendrite *

d. a short axon but long dendrite

Which of the following statements about the myelin sheath is true?

a. It will slow the rate of nervous impulse transmission

b. It is only found around motor neurones

c. It is only found around sensory neurones

d. It protects, nourishes and insulates the nerve fibres *

The process whereby an external sensation is converted into a nerve impulse is termed:

a. Induction

b. Deduction

c. Transduction *

d. Neurogenesie

e. Repolarisation

Sensory neurones may be described as:

a. Motor

b. Abiogenic

c. Afferent *

d. Efferent

e. Effluent

A ganglion is:

a. A bundle of nerve cell fibres composing an area of white matter

b. A collection of nerve cell bodies in the peripheral nervous system

c. A collection of nerve cell bodies in the central nervous system

d. A malignant tumour of nerve cells

e. Any atavistic embryonic structure found in the adult nervous system

Which statement is true of saltatory transmission:

a. It occurs in all nerve fibres

b. It only occurs in unmyelinated nerve fibres

c. It only occurs in axons

d. It only occurs in dendrites

e. It only occurs in myelinated nerve fibres