Select the correct statement about olfaction. (Please read all choices before recording your answer.) A) Humans can distinguish many different kinds of odors. B) Olfactory receptor cells transmit sensory signals to the olfactory bulb via cribiform plate openings. C) For us to smell a particular odorant, it must be volatilized. D) All of the above statements are correct.

Motor nervous system refers to the ________. A) autonomic nervous system B) brain, spinal cord, and peripheral nerves C) somatic and autonomic nervous system D) somatic nervous system

Retinal fibers from the medial aspect of each eye conduct nerve impulses that ________. A) terminate at the superior colliculus B) pass posteriorly without crossing over at the optic chiasma C) divide at the optic chiasma, with some crossing and some not crossing D) cross over to the opposite side at the optic chiasma

Vomiting, coughing, sneezing, swallowing, hiccupping are nonrespiratory movements associated with the ________. A) midbrain B) pons C) medulla oblongata D) None of the previous choices is the correct one.

Central nervous system (CNS) refers to the ________. A) autonomic nervous system B) brain, spinal cord, and peripheral nerves C) brain and spinal cord D) spinal cord and spinal nerves

Over 90% of all parasympathetic fibers are derived from which important cranial nerve? A) V B) VII C) X D) XII E) None of the above answers is correct

Which structure defines the pupil and regulates the amount of light passing to the visual receptors of the eye? A) aqueous humor B) lens C) cornea D) iris

Match the following hormones with the appropriate type of stimulus (prompting release of the respective hormone).

Which of the following structures produces cerebrospinal fluid (CSF)? A) dura mater B) arachnoid mater C) pia mater D) choroid plexus

Which of the following structures is (are) NOT part of the external ear? A) auricle also called pinna B) external acoustic meatus C) lobule D) vestibule (saccule and utricle)