Nervous System 4 Flashcards Preview

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Flashcards in Nervous System 4 Deck (31):
1

The CNS develops from the neural plate on the _____ surface of the embryo

Dorsal

2

The brain forms from a series of pouches from the ____ ____

Neural Tube

3

How many brain regions can be identified in the early embryo?

3

4

The brain is commonly divided into what 4 things?

Cerebral hemispheres
Diencephalon
Brainstem
Cerebellum

5

What does the brainstem consist of?

midbrain
pons
medulla oblongata

6

The two spaces in the cerebral hemispheres

lateral ventricals

7

Where is the 3rd ventricle?

in the diencephalon

8

Where is the 4th ventricle?

in the hindbrain

9

Nervous system is created from this layer

Ectoderm

10

Notochord is created from this layer

Mesoderm

11

Primary Brain Vesicles

prosencephalon
mesencephalon
rhombencephalon
neural canal

12

Secondary brain vesicle

telencephalon
diencephalon
mesencephalon
mesencephalon
myelencephalon

13

Neural canal in telencephalon

lateral ventricles

14

Neural canal in diencephalon

third ventricle

15

neural canal in mesencephalon

cerebral aqueduct

16

Neural canal in metencephalon

fourth ventricle
(superior part)

17

Neural canal in Myelincephalon

fourth ventricle
(inferior part)

18

Structures within the telencephalon

cerebrum

19

Structures within the Diencephalon

Epithalamus
Thalamus
Hypothalamus

20

Structures within the Mesencephalon

Superior Colliculi
Inferior Colliculi

21

Structures within the Metencephalon

Pons
Cerebellum

22

Structures within the Myelencephalon

Medulla oblongata

23

Cluster of neuron cell bodies within the PNS

Ganglion

24

Group of CNS neuron cell bodies with a common function

Center

25

Center in the CNS that displays discrete anatomic boundaries

Nucleus

26

Axon bundle of nerves in the PNS

Nerve

27

Network of nerves in PNS

Nerve Plexus

28

CNS axon bundle in which the axon have a similar function and share a common origin and destination

Tract

29

Centers and tracts that connect the CNS with body organs and systems

Pathway

30

Outer layer of gray matter in cerebrum and cerebellum; consists of densely packed neuron cell bodies

Cortex

31

Either of two symmetrical halves of the cerebrum, separated by the longitudinal fissure

Cerebral hemisphere