Exam 4: Principles of Neural and Hormonal Communication

In which of these structures are the hair cells for hearing located?

The sympathetic postganglionic fibres that innervate the sweat glands secrete acetylcholine rather than norepinephrine.

Which statement describes the tympanic membrane?

The curvature of the lens must be adjusted to enable the eye to focus both near and far sources on the retina.

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 -preganglionic fibre that secretes norepinephrine

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 -contains the tympanic membrane, which vibrates in synchrony with sound waves

Sensory information from the skeletal muscles enters the central nervous system by visceral efferent neurons.

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 -provides information useful for keeping the eyes focused on a fixed object even when the head is moving

Which of these statements describes the utricle?

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 -air filled

Which of these activities happens in light adaptation?

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 -terminate on effector organs

Match the type of nociceptor, labelled a. through c., with the properties associated with each type of nociceptor. (Options may be used more than once or not at all.) a.mechanical nociceptor b.thermal nociceptor c.polymodal nociceptor -responds to cutting, crushing, pinching

The left cerebral cortex receives information from the ____________________ half of each visual field.

Which of these systems would suppress the digestive organs during times of greater physical activity?

The preganglionic fibres of the autonomic nervous system are cholinergic fibres.

The semicircular canals are activated as the head starts to rotate, but cease responding if the head movement continues at the same rate in the same direction.

____________________ is a technique by which a person is provided with a conscious signal of a monitored visceral activity.

Compare and contrast the various types of autonomic receptors.

The axons controlling skeletal muscles are large and myelinated.