Exam 4: The Peripheral Nervous System: Sensory, Autonomic, Somatic

Which of these statements describes the lens of the eye

Receptors can respond only to electrical stimulation.

Parasympathetic preganglionic fibres arise from the __________________ and __________________ areas of the CNS.

Which of the following applies to the sympathetic nervous system

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -corneal surface uneven

The fibres in the lateral half of each optic nerve cross over at the optic chiasm.

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -components aligned in three different planes all perpendicular to each other

Which of these steps is the final signalling step following impulse conduction along the axon terminal

Compare and contrast the various types of autonomic receptors.

Atropine blocks all nicotinic receptor sites.

The stronger the stimulus, the greater the frequency of action potentials generated and propagated in the afferent neuron.

Contraction of the radial muscle of the iris produces a dilation of the iris.

The iris consists of layers of ____________________ and ____________________ smooth muscle fibres.

Short-wave lengths of light within the visible spectrum are sensed as violet or blue.

Which statement describes Pacinian corpuscles

Muscarinic receptors are found on the effector cells innervated by the sympathetic division.

Which of the following must happen for accommodation to occur

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.) -have a receptor at the peripheral ending

Which of these statements applies to colour vision

Which of these statements applies to the ossicular system of the ear