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Flashcards in Nervous System Deck (51)
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1

3 parts of the neuron

cell body, dendrite, axon

2

Dendrites

transmit signals to the cell body

3

Axon

sends signal from cell body to axon terminal to be sent to a new neuron

4

Synapse

sending signals from the terminal bouton across the synaptic cleft to the new neuron

5

What supplies energy for a synapse?

Mitochondria on pre and postsynaptic neurons

6

Golgi Preparation

Isolate individual neurons

7

Nissl Preparation

Shows cell bodies of neurons

8

Myelin Preparation

Stains myelinated fibers but not cell bodies or dendrites

9

H and E Preparation

Stains entire neuron

10

Central Nervous System

Brain and Spinal Cord

11

Peripheral Nervous System

nerves/ ganglia that are not a part of the brain or spinal cord (except CN2)

12

Clusters of neuron cell bodies
PNS vs CNS

PNS- Ganglia
CNS- nuclei

13

Glial Cells

support functions for neurons relating to nutrition, regulate extracellular environment (blood brain barrier, immune system), myelin insulation

14

Astrocytes

Support and repair neurons
Form Brain-blood barrier in CNS

15

Astrocyte End-feet

make glia limitans which coat the inner surface of pia mater

16

Microglia

Clean up cellular debris via phagocytosis

17

Satellite

Form brain-blood barrier in CNS; similar to astrocytes

18

Ependymal

Form epithelial lining of CNS; make cerebrospinal fluid

19

Oligodendrocytes

Myelinates axons of neurons in CNS

20

Schwann Cells

Myelinates axons of neurons in PNS

21

Dura Mater

Tough outermost lining that covers brain and spinal cord

22

Arachnoid Mater

Fibrous membrane, between Dura and Pia mater

23

Pia Mater

Innermost layer, attached to brain and spinal cord

24

Forebrain

Anterior part; contains cerebral hemispheres, thalamus, hypothalamus
AKA proencephalon

25

Hindbrain

Lowe part of brainstem; contains cerebellum, pons, medulla oblongata
AKA rhombencephalon

26

Telencephalon

Cerebral hemispheres

27

Diencephalon

Epithalamus, thalamus, hypothalamus, ventral thalamus, third ventricle

28

Mesencephalon

midbrain; tectum, tegmentum, cerebral aqueduct, cerebral peduncles

29

Metencephalon

Pons and cerebellum

30

Myelencephalon

Medulla Oblongata