Question

1. Which of the following cranial nerves is responsible for communication from our ear to our brain?

A. olfactory--CN I

B. vestibulocochlear--CN VIII

C. vagus--CN X

D. facial--CN VII

2. When light hits the retina, photoreceptor cells of the ON-pathway hyperpolarize. What effect does this have on the bipolar cells of the ON-pathway?

	A. Causes hyperpolarization of the bipolar cells due to IPSP input.
	B. There is no effect on the bipolar cells at this time.
	C. Causes depolarization of the bipolar cells due to removal of the IPSP input.
	D. Triggers an action potential in the bipolar cells.

3. Sound waves are transferred through cochlear duct fluid cause movement of the _____________, which stimulates hair cells.

Question 3 options:

	A. basilar membrane
	B. auditory ossicles
	C. tectorial membrane
	D. scala vestibuli

4. A tool that measures the electrical activity of the brain is called:

Question 4 options:

	A. an EKG
	B. an ECG
	C. an EEG

5. The EEG of REM sleep looks most similar to:

Question 5 options:

	A.the delta rhythm of N3 sleep
	B. the theta rhythm of N1 sleep
	C. the beta rhythm of an alert state
	D. None of the above because it looks completely different from any other EEG pattern.

6. Which of the following are structures found within the hypothalamus? (please select all that apply)

	A) suprachiasmatic nucleus
	B) portions of the RAS
	C) pineal gland
	D) orexin-secreting neurons
	E) amygdala
	F) sleep center

7. All but which of the following could trigger a transition from sleep to an awake state?

	A. Decrease in the production of orexin
	B. Decreased blood glucose
	C. A loud noise that activates the limbic system
	D. Stimulation from the suprachiasmatic nucleus in the hypothalamus

8. The best description of the limbic system is:

	A. a series of structures in the brainstem and diencephalon that contribute to our consciousness
	B. a series of structures in the forebrain that contribute to learning and emotions
	C. a portion of our nervous system involved in voluntary muscle movement
	D. a portion of our nervous system that controls our circadian rhythm

9. All but which brain structures would be involved in consolidation of a happy memory?

	A. hippocampus
	B. amygdala
	C. basal nuclei
	D. prefrontal cortex

Answer 1

ANS. 1. vestibulocochlear--CN VIII cranial nerve is responsible for communication from our ear to our brain.

ANS. 3. Sound waves are transferred through cochlear duct fluid cause movement of the Tectoral membrane, which stimulates hair cells.

ANS. 4. A tool that measures the electrical activity of the brain is called Electroencephalography (EEG).

ANS. 6. Except for pineal gland and amygdala, all the structure are found in the hypothalamus.

ANS. 7. A loud noise that activates the limbic system could trigger a transition from sleep to an awake state.

ANS. 8.  The best description of the limbic system is a series of structures in the forebrain that contribute to learning and emotions.