Question 1

________ Gives rise to the pars nervosa&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The infundibulum gives rise to the neurohypophysis.The infundibulum appears as a diverticulum of the floor of the diencephalon.Later,nerve fibers from the hypothalamus grow into the developing pars nervosa of the pituitary gland.

Question 2

________ Third ventricle&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The third ventricle is formed mainly from the cavity of the diencephalon.The anterior part of the third ventricle is derived from the cavity of the telencephalon.

Question 3

________ Efferent function&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal ganglion cells

Accepted Answer

Neuroepithelial cells in the basal plates of the developing neural tube give rise to neurons (e.g. ,the motor neurons in the ventral horns of the spinal cord)that are concerned with efferent activities.

Question 4

________ Pons&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon

Accepted Answer

The pons is derived from the metencephalon.Nerve fibers that connect the cerebral and cerebellar cortices with the spinal cord pass through the marginal layer of the ventral region of the metencephalon.These fibers form a robust band of nerve fibers crossing to the other side.This accounts for the name pons,a Latin word meaning "a bridge." The walls of the metencephalon form the pons and cerebellum,and its cavity forms the superior part of the fourth ventricle.

Question 5

________ Unipolar afferent neurons&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal ganglion cells

Accepted Answer

The unipolar spinal (dorsal root)ganglion cells arise by differentiation of neural crest cells,but they are not unipolar neurons.First bipolar neuroblasts form and then their processes unite to form unipolar neurons.The central process of this T-shaped axon grows into the spinal cord to form part of a dorsal root;the peripheral process forms part of the dorsal root,which joins the ventral root to form a mixed spinal nerve.

Question 6

________ Infundibulum&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The infundibulum gives rise to the neurohypophysis or pars nervosa of the pituitary gland.As the posterior pituitary develops,the neuroepithelial cells in the wall of the infundibulum proliferate and differentiate into pituicytes.

Question 7

________ Form ventral gray columns&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal ganglion cells

Accepted Answer

The basal plates of the neural tube give rise to the ventral and lateral gray columns of nerve cells in the spinal cord.Axons of the ventral horn cells grow out of the spinal cord and form the ventral roots of spinal nerves.

Question 8

________ Hypothalamus&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The hypothalamus arises by proliferation of neuroblasts in the ventral wall of the diencephalon.The various nuclei that develop in it are concerned with endocrine activities and homeostasis.

Question 9

________ Internal capsule&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

As the cerebral cortex differentiates,fibers passing to and from it pass through the corpus striatum;this fiber pathway is the internal capsule.Projection fibers concentrated in the internal capsule fan out to form the corona radiata in the medullary center.Because of its adaptation to the contours of the masses of gray substance (matter)in the brain,the internal capsule develops an anterior limb,a genu,and a posterior limb,as seen on horizontal section.

Question 10

________ Olivary nuclei&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon

Accepted Answer

The olivary nuclei in the rostral part of the myelencephalon (open part of the medulla)are derived from neuroblasts that migrate from the alar plates.

Question 11

________ Produces cerebrospinal fluid (CSF)&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Produces cerebrospinal fluid (CSF)&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 12

________ Roof of primordial mouth cavity&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Roof of primordial mouth...

Question 13

________ Primordium of adenohypophysis&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Primordium of adenohypophysis&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 14

________ Neuroglia&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal ganglion cells

Accepted Answer

The answer of ________ Neuroglia&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal ganglion...

Question 15

________ Lentiform nucleus&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Lentiform nucleus&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 16

________ Gracile nuclei&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal ganglion cells

Accepted Answer

The answer of ________ Gracile nuclei&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal...

Question 17

________ Floor of the diencephalon&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Floor of the diencephalon&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 18

________ Primordium of the cerebral hemisphere&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Primordium of the cerebral...

Question 19

________ Sympathetic ganglion cells&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal plates&#10;D)Neuroepithelium&#10;E)Spinal ganglion cells

Accepted Answer

The answer of ________ Sympathetic ganglion cells&#10;A)Neural crest cells&#10;B)Alar plates&#10;C)Basal...

Question 20

________ Invagination of pia mater&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Invagination of pia mater&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 21

________ Corpus striatum&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon

Accepted Answer

The answer of ________ Corpus striatum&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon...

Question 22

________ Red nuclei&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon

Accepted Answer

The answer of ________ Red nuclei&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon...

Question 23

________ Neurohypophysial bud&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Neurohypophysial bud&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 24

________ Develops from the metencephalon&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Develops from the metencephalon&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 25

________ Gives rise to the neurohypophysis&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Gives rise to the...

Question 26

________ Thalamus&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon

Accepted Answer

The answer of ________ Thalamus&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon...

Question 27

________ Cerebellum&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon

Accepted Answer

The answer of ________ Cerebellum&#10;A)Telencephalon&#10;B)Diencephalon&#10;C)Mesencephalon&#10;D)Metencephalon&#10;E)Myelencephalon...

Question 28

________ Forms the pineal gland&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Forms the pineal gland&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 29

________ Includes the mammillary bodies&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Includes the mammillary bodies&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Question 30

________ Forms the thalamus&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E

Accepted Answer

The answer of   ________ Forms the thalamus&#10;A)A&#10;B)B&#10;C)C&#10;D)D&#10;E)E...

Deck 15: Nervous System