Exam 4: Principles of Neural and Hormonal Communication

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 -innervates skeletal muscle

The eye structure with the greatest refractive ability is the ____________________.

Each cone contains three different photopigments for selectively responding to red, blue, or green wavelengths of light.

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 -have a receptor at the peripheral ending

____________________ attach the lens to the ciliary body.

Match the receptors, labelled a. through c., to their locations. (Options may be used more than once or not at all.) a.chemoreceptors b.mechanoreceptors c.photoreceptors -semicircular canals

Match the divisions, labelled a. through d., with the anatomical and physiological autonomic features. (Options may be used more than once or not at all.) a.parasympathetic division b.sympathetic division c.both parasympathetic and sympathetic divisions d.neither parasympathetic nor sympathetic divisions -preganglionic fibres and postganglionic fibres that synapse in the intramural ganglia

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 -vitamin A deficiency

Diplopia is another name for double vision.

Parasympathetic activation of sweat glands occurs to help reduce body temperatures.

Match the pathways, labelled a. through c., with the regions. a.ascending pain pathway b.descending analgesic pathway c.both pain and analgesic pathways -reticular formation

Which of the following happens during accommodation for near vision?

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) a.external ear b.middle ear c.cochlea in the inner ear d.semicircular canal in the inner ear e.utricle and saccule in the inner ear -detects rotational acceleration or deceleration of the head

Autonomic activity can be influenced by conscious neural activity.

____________________ are the receptors that display the least amount of adaptation.

A concave lens is used to correct for a myopic eye.

Cone photoreceptors provide high visual acuity.

Depolarization of the motor end plate results from more ____________________ ions entering the cell than ____________________ ions leaving the cell.

Which statement describes the blind spot?

____________________, a neurotransmitter unique to pain fibres, is released from afferent pain terminals.