Exam 4: Principles of Neural and Hormonal Communication

Match the rods and cones, labelled a. through c., with their properties. (Options may be used more than once or not at all.) a.rods b.cones c.both rods and cones -contain opsin and retinene

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.) a.all three types of neurons b.both afferent and efferent neurons c.afferent neurons d.efferent neurons or interneurons -responsible for thoughts and other higher mental functions

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) a.colour blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -eyeball too short

The helicotrema is located beyond the tip of the cochlear duct.

____________________ is the bending of light rays as they pass from one medium to another.

Match the part of the autonomic nervous system, labelled a. through d., with its description(s). (Options may be used more than once or not at all.) a.sympathetic nervous system b.parasympathetic nervous system c.both sympathetic and parasympathetic nervous system d.neither sympathetic nor parasympathetic nervous system -postganglionic fibre that secretes norepinephrine

Destruction of which of the following can cause instant blindness in one eye?

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.) a.all three types of neurons b.both afferent and efferent neurons c.afferent neurons d.efferent neurons or interneurons -lie primarily within the peripheral nervous system

Which afferent input does NOT reach the conscious level?

Where does the actual conversion of sound vibrations to nerve impulses occur?

The vestibular nuclei provide output important in maintaining balance and posture.

What is the fate of ACh following binding to receptors?

Mechanical deformation of the hairs of hair cells in the inner ear always results in depolarization of the hair cell synaptic terminal.

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) a.colour blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -increased intraocular pressure

Which of these statements correctly describes receptors?

Which statement describes rods?

Which statement applies to rhodopsin?

Retinene is found in the rods but not in the cones.

Which of the following statements correctly describes the semicircular canals?

The refractive structure of the eye that has the ability to change its strength is the ____________________.