Chapter 3

Question 1

Ventricles

Answer 1

-Lateral
-Third
-Fourth
-Central Canal
-choroid plexus lives in them

Question 2

Cerebrospinal fluid

Answer 2

-Choroid plexus
-Hydrocephalus
-located in between the arachnoid mater and pia mater

Question 3

Meninges

Answer 3

-dura mater
-arachnoid
-pia mater

Question 4

Dura Mater

Answer 4

-outermost
- dense irregular connective tissue
-carries blood from brain toward the heart

Question 5

Arachnoid Mater

Answer 5

-middle and looks like webs
-CSF circulates in the space

Question 6

Pia Mater

Answer 6

-innermost
-allows blood vessels to pass through and nourish brain

Question 7

cerebral aqueduct

Answer 7

15mm conduit that allows CSF to flow between the 3rd and 4th ventricle

Question 8

axon

Answer 8

long narrow process that projects from the cell body

Question 9

dendrites

Answer 9

ticklers

Question 10

nodes of ranvier

Answer 10

gaps between sections of myelin

Question 11

buttons

Answer 11

endings of axon branches which release chemicals into synapses

Question 12

synapses

Answer 12

gaps between adjacent neurons across which chemical signals are transmitted

Question 13

neuron cell membrane

Answer 13

composed of a lipid bilayer

Question 14

multipolar

Answer 14

what i think neurons look like

Question 15

unipolar

Answer 15

bald neuron

Question 16

bipolar

Answer 16

like a bracelet

Question 17

pseudounipolar

Answer 17

a little freak

Question 18

interneurons

Answer 18

short/no axon

Question 19

clusters of cell bodies in CNS

Answer 19

nuclei

Question 20

clusters of cell bodies in PNS

Answer 20

ganglia

Question 21

bundles of axons in CNS

Answer 21

tracts

Question 22

bundles of axons in PNS

Answer 22

nerves

Question 23

oligodendrocytes

Answer 23

myelination in the CNS

Question 24

schwann cells

Answer 24

myelination in the PNS

Question 25

microglia

Answer 25

-role in cell death, synapse formation, and synapse elimination

Question 26

astroglia

Answer 26

-biggest glial cells - do lots of things

Question 27

golgi stain

Answer 27

turned neurons black first time seeing neurons even though it was just silhouette

Question 28

nissl stain

Answer 28

superior burble stain

Question 29

anteretrograde tracing

Answer 29

put in cell body to trace path thru axon away from cell body

Question 30

retrograde tracing

Answer 30

picked up by terminal buttons and transported thru axon to the cell body

Question 31

Anterior

Answer 31

towards nose

Question 32

posterior

Answer 32

towards tail end

Question 33

dorsal

Answer 33

towards back or top of head

Question 34

ventral

Answer 34

towards chest or bottom of head

Question 35

medial

Answer 35

towards midline of body

Question 36

lateral

Answer 36

away from the midline

Question 37

axon hillock

Answer 37

connects cell body to axon

Question 38

ribosomes

Answer 38

makes protein

Question 39

golgi complex

Answer 39

packages stuff for transport to the synapses

Question 40

glial cells

Answer 40

cells that help neurons but arent neurons

Question 41

arms of the spinal gray matter

Answer 41

dorsal horns and ventral horns

Question 42

5 neural tubes

Answer 42

T, D, MES, MET, MYE, SC T and then alpha order

Question 43

dorsal root

Answer 43

sensory unipolar

Question 44

ventral root

Answer 44

motor multipolar

Question 45

myelencephalon

Answer 45

-medulla -has the reticular formation (arousal, etc)

Question 46

metencephalon

Answer 46

-pons -cerebellum -mostly sensorimotor

Question 47

mesencephalon

Answer 47

-tectum & tegmentum

Question 48

tectum

Answer 48

pair of inferior colliculi auditory pair of superior colliculi visual-motor

Question 49

tegmentum

Answer 49

-periaqueductal is gray matter around the cerebral aqueduct -substantia nigra & red nucleus

Question 50

diencephalon

Answer 50

-thalamus -massa intermedia -hypothalamus -pituitary gland

Question 51

telencephalon

Answer 51

-cerebral cortex -hippocampus