1. Human Biology Lecture
Clicker Quiz

2. The pons belongs to which major brain region?
Cerebellum
Cerebrum
Diencephalon
Brain stem
Answer: d. Brain stem
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3. The ______ of the brain is the location of our conscious mind.
Brodmann area
Cerebellum
Brain stem
Cerebral cortex
Answer: d. cerebral cortex
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4. © 2013 Pearson Education, Inc.
Which of the following brain regions is a responsible for sending most of the sensory to and from the cerebral cortex?
Hypothalamus
Epithalamus
Interthalamic adhesion
Thalamus
Answer: d. Thalamus
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5. Severe damage to which of the following brain regions would result in death?
Cerebral cortex
Medulla oblongata
Basal nuclei
Cerebellum
Answer: b. Medulla oblongata
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6. Which of the following brain systems is heavily involved in mediating emotional responses?
Limbic system
Reticular formation
Reticular activating system
Both a and b
Answer: a. Limbic system
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7. If inhibited, which brain system would allow previously filtered stimuli to enter our consciousness?
Limbic system
Autonomic system
Reticular activating system
Both a and b
Answer: c. Reticular activating system
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8. While studying for an exam, you reach for a beverage
While studying for an exam, you reach for a beverage. To extend your arm, your _______ nervous system is activated.
Afferent
Autonomic
Sympathetic
Somatic
Answer: d. somatic
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9. The door slams shut loudly and you flinch
The door slams shut loudly and you flinch. After a few seconds, you realize that your heart is beating very rapidly and forcefully. This response is the result of your ______ nervous system.
Afferent
Autonomic
Central
Somatic
Answer: b. autonomic
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10. Complete the following analogy: Electrical wire is to electrical insulating tape as peripheral neurons are to ________.
Schwann cells
Oligodendrocytes
Astrocytes
Ependymal cells
Answer: a. Schwann cells
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11. The basis for differentiation between gray matter and white matter in the CNS is the presence of _______ in white matter.
Unmyelinated neurons
Myelinated neurons
Schwann cells
ependymal cells
Answer: b. myelinated fibers
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12. The location at which a neuron communicates with another neuron is called the __________.
Synapse
Junction
Connection
Axoaxonic target
Answer: a. synapse
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13. When you first enter a movie theater, the smell of popcorn overwhelms you. Once the movie has ended, however, you don't notice the popcorn smell. You have experienced ________.
phasic sensation
tonic sensation
generator sensation
adaptation
Answer: d. adaptation
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14. The perineurium ______.
encloses all the fascicles to form a nerve
surrounds axons and Schwann cells
binds groups of neurons into bundles
contains sensory neurons only
Answer: c. binds groups of fibers into bundles
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15. A synonym for the autonomic nervous system reflects its major function
A synonym for the autonomic nervous system reflects its major function. The synonym is ______.
the peripheral nervous system
the central nervous system
the involuntary nervous system
the somatic nervous system
Answer: c. the involuntary nervous system
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16. The sympathetic nervous system is also referred to as
Resting and Digesting
Resting and Running
Fight or Flight
Fight and Fail
C. Fight or Flight

17. Which of the following terms is a used for eyelids?
Commissures
Palpebrae
Caruncles
Tarsal plates
Answer: b. Palpebrae

18. Pinkeye is an infection of the _______ of the eye.
Conjunctiva
lacrimal apparatus
Cornea
palpebrae
Answer: a. conjunctiva
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19. The cornea is actually part of the ______ layer of the eye.
Outer
Middle
Inner
Choroid
Answer: a. fibrous
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20. Sympathetic fibers innervating the iris of the eye cause which response?
Pupil constriction
Pupil dilation
Papillary decrease
Rapid blinking
Answer: b. Dilation
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21. The formation of rainbows reflects the fact that _______.
during rain showers, an abundance of electromagnetic energy is available
visible light consists of multiple wavelengths of light
light travels in a linear fashion
X rays become visible by reflecting off of raindrops
Answer: b. visible light consists of multiple wavelengths of light
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22. Taste is 80% smell. The relationship between smell and taste is evidenced by the fact that both sensations are a type of ________.
Photoreception
Baroreception
Mechanoreception
chemoreception
Answer: d. chemoreception
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23. The hearing receptors are located in the _______.
external ear
middle ear
inner ear
tympanic cavity
Answer: c. internal ear
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24. Which homeostatic imbalance is characterized by a howling ringing in the ears, vertigo, vomiting, and nausea?
Conduction deafness
Tinnitus
Sensorineural deafness
Ménière's syndrome
Answer: d. Ménière's syndrome
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25. Which of the following conditions results from a build up of pressure in the anterior chamber of the eye due to accumulation of aqueous humor?
Glaucoma
Retinal detachment
Cataracts
Color blindness
Astigmatism
A. Glaucoma

26. Autonomic neurons are further subdivided into the
Visceral and somatic division
Sympathetic and parasympathetic division
Central and peripheral division
B. Sympathetic and parasympathetic

27. Astrocytes Oligodendrocytes Ependymal Cells Schwann Cells
Tom’s father suffers a stroke that leaves him partially paralyzed on his right side. What type of glial cell would you expect to find in increased numbers in the damaged area of the brain that is affected by the stroke?
Astrocytes
Oligodendrocytes
Ependymal Cells
Schwann Cells
Microglial Cells
E. Microglial

28. Clear focusing of the light waves falling on the retina when viewing close objects is accomplished by adjusting the
Shape of the lens
Length of the eyeball
Position of the retina
Diameter of the pupil
None of the above
A. Shape of the lens

29. Which of the following is the function of the pigmented layer of the eye?
Reflects light after hitting the retina
Absorbs light after hitting the retina
Assists the lens in rounding up to see close up
Assists the lens in stretching out to see close up
None of the above
B. Absorbs light after hitting the retina

30. Which of the following taste receptors is usually found on the back of the tongue?
Sweet
Salty
Sour
Bitter
Salty and Sweet
D. Bitter