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

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.) -cause fat break down in adipose tissue

The sclera is the most internal layer of the eye.

For near vision, the ciliary muscle (contracts or relaxes) so that the suspensory ligaments become (taut or slack).This allows the lens to (flatten or round up), which (increases or decreases) the strength of the lens.

The autonomic nervous system is the part of the peripheral nervous system that regulates smooth muscle, cardiac muscle, and glands.

Which of the following happens in response to movement of the oval window

Photoreceptors are depolarized in the absence of stimulation (i.e., in the dark), and hyperpolarized when stimulated (i.e., when exposed to light).

Match the receptors, labelled a. through c., to their locations. (Options may be used more than once or not at all.) -cochlea

Which of these statements accurately describes receptors

Unlike the visual pathways, auditory signals from each ear are transmitted to both hemispheres.

By blocking the effect of acetylcholine at muscarinic but not nicotinic receptors, atropine is able to block parasympathetic effects while not influencing sympathetic activity at all.

The sympathetic nervous system is always excitatory to the organs it innervates.

The autonomic nervous system controls the motor activity of skeletal muscles.

The ossicular system transmits the vibrations of the tympanic membrane to the oval window, the movement of which sets up pressure waves in the cochlear fluid.

What is the role of glutamate in the pain pathways

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

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.) -innervate blood vessels and sweat glands

Which of these structures is associated with hearing

Normal breathing patterns directly bring odoriferous molecules into contact with the olfactory mucosa.

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

Sympathetic activity stimulates the secretion of ____________________ from the pancreas.