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1

What makes up the CNS?

Brain
Spinal cord

2

What makes up the PNS?

Cranial nerves
Spinal nerves

3

What makes up the ANS?

Sympathetic
Parasympathetic

4

Formation of nervous system occurs during the embryonic stage from the end of _______ week to the end of ________ week.

Second
Eighth

5

Superior (anterior or cranial) neuropore closes by day ______.

27

6

Inferior (posterior or caudal) neuropore closes by day ______.

30

7

The tripartite brain consists of what?

Prosencephalon
Mesencephalon
Rhombencephalon

8

The tripartite brain then divides into the pentapartite brain. The prosencephalon becomes _________ and _________; mesencephalon; and rhombencephalon becomes _________ and _________.

Telencephalon (most anterior)
Diencephalon
Metencephalon
Myelencephalon

9

The prosencephalon is not divided into ______ and ______ plates like rest of neural tube.

Alar
Basal

10

There are two pairs of evaginations from the prosencephalon which are...

Telencephalic vesicles
Optic vesicles

11

Telencephalic vesicles become what?

Cerebral hemispheres

12

Optic vesicles become what?

Retinas of the eye
Associate with diencephalon

13

Subphylum craniata (newer term for subphylum vertebrata) has two subgroups, which are...

Hagfishes (craniates without vertebrae)
Vertebrates (craniates with vertebrae)

14

The cranial end of the neural tube of all craniates is characterized by three primary brain vesicles, which are...

Prosencephalon
Mesencephalon
Rhombencephalon

15

The prosencephalon is the future...

Forebrain

16

The mesencephalon is the future...

Midbrain

17

The rhombencephalon is the future...

Hindbrain

18

The cranial end of the neural tube of all craniates is characterized by three primary brain vesicles. The differentiation of these vesicles occurs through localized thickenings of lateral walls and floor, and _________.

Evaginations

19

What is the major derivative of the myelencephalon that becomes continuous with the spinal cord?

Medulla oblongata

20

In this fish, the myelencephalon ism ore developed than other areas of the brain. Large neurons run the length of the tail, thought to be involved in swimming. (Myelencephalon is well developed in all the rest of the vertebrates).

Agnathans

21

Gray matter in the mesencephalon is organized into discrete _______ interspersed among myelinated (white) fiber tracts.

Nuclei

22

Gray matter in the spinal cord is continuous and is located more centrally and surrounded by myelinated fiber _______.

Tracts

23

This type of fish have vagal lobes associated with myelencephalon. The site of sensory nucleus (nucleus solitarius) in alar plate which may cause an enormous bulge on either side of the brainstem. May be associated with sense of taste.

Teleosts

24

In these, vagal lobes disappear from myelencephalon.

Amphibians

25

In these, the myelencephalon is well-developed.

Mammals

26

What are the components of the brainstem?

Medulla
Pons
Midbrain

27

In general, the ________ is made up of a mixture of long fiber pathways, 10 of 12 cranial nerves that enter and leave, well-organized nuclei, and a network of cells which forms the ________ reticular formation.

Brainstem
Brainstem

28

In the brainstem, most of the nuclei are related directly to...

Cranial nerve functions
Motor control pathways

29

List the descending tracts in the medulla.

Corticospinal
Spinal tract V
Medial longitudinal fasciculus
Tectospinal
Rubrospinal

30

List the ascending tracts of the medulla.

Medial lemniscus
Spinothalamic tract
Spinoreticular tract
Spinocerebellar tract
Cuneocerebellar tract