Please answer all questions

1			Damage to which embryonic cell layer would most directly result in defects in the central nervous system?
			A)	Ectoderm.
			B)	Endoderm.
			C)	Mesoderm.
			D)	All of the above.
2			Development of the hypothalamus would be impaired by damage to the
			A)	mesencephalon.
			B)	metencephalon.
			C)	myelencephalon.
			D)	telencephalon.
3			Abrupt changes in personality due to a head injury would most likely be related to
			A)	damage in the occipital lobe.
			B)	damage in the temporal lobe.
			C)	damage in the frontal lobe.
			D)	damage in the parietal lobe.
4			A conscious, awake adult is subjected to an electroencephalograph. An excessively high number of delta waves are observed. This may indicate
			A)	severe emotional distress.
			B)	brain damage.
			C)	relaxation.
			D)	concentration.
5			A lack of fear may be associated with injury to
			A)	the caudate nucleus.
			B)	Broca's area.
			C)	the amygdala.
			D)	the septal nuclei.
6			The ability to convert short-term memories to long-term memories depends on the actions of
			A)	the hypothalamus.
			B)	the medial temporal lobe.
			C)	the corpus callosum.
			D)	prefrontal cortex.
7			Melatonin is secreted by a gland found in the
			A)	epithalamus.
			B)	hypothalamus.
			C)	neurohypophysis.
			D)	thalamus.
8			Ataxia results due to damage of the
			A)	corpora quadrigemina.
			B)	pons.
			C)	hypothalamus.
			D)	cerebellum.
9			Fine sensations of touch are transmitted by the
			A)	anterior spinothalamic tract.
			B)	posterior spinocerebellar tract.
			C)	fasciculus gracillis.
			D)	lateral spinothalamic tract.
10			Thermal sensations from the left foot may not be detected if
			A)	the right thalamus was ablated.
			B)	the left cervical spinal cord was damaged.
			C)	the left medulla oblongata was damaged.
			D)	all of the above.
11			Movements of the eyes would be affected by damage to the
			A)	abducens nerve.
			B)	oculomotor nerve.
			C)	trochlear nerve.
			D)	all of the above.
12			Motor impulses are transmitted by
			A)	dorsal roots of spinal nerves.
			B)	dorsal root ganglia of spinal nerves.
			C)	ventral roots of spinal nerves.
			D)	none of the above.
13			Reflex arcs
			A)	require the actions of the brain.
			B)	require the actions of the peripheral nervous system.
			C)	always include an interneuron.
			D)	all of the above.