Gross anatomy pt 2

Question 1

types of neurons

Answer 1

• sensory
• motor
• interneurons
• neurological cells

Question 2

• made of cytoplasm
• carries info to cells
• highly arborized
• carry graded potentials

Answer 2

neuronal dendrites

Question 3

• has DNA and RNA

- produce ribosomes and then move them to cytoplasm

Answer 3

nucleus

Question 4

• proteins, organelles, and liquid

Answer 4

cytoplasm

Question 5

• acts as pathways for protein

- give cells their shape

Answer 5

scaffolding

Question 6

• sums all graded potentials

Answer 6

axonal hillock

Question 7

• fiber carrying info away from cell body

Answer 7

axon

Question 8

break in the myelin sheath

Answer 8

nodes of ranvier

Question 9

branching at the end of the axon

Answer 9

telodendria

Question 10

bulge at the end of teledendria

Answer 10

bouton

Question 11

pockets to hold neurotrasmitters

Answer 11

synaptic vessels

Question 12

space between the bouton and dendrtes

Answer 12

synaptic cleft

Question 13

• long axon

- form sensory and motor tracts

Answer 13

Golgi I

Question 14

• short central processes

- interneurons

Answer 14

Golgi II

Question 15

neurons have _______

Answer 15

resting potential

Question 16

resting potential is ____ on the outside and _____ on the inside

Answer 16

Na+, K+

Question 17

when hillock sum reaches a certain point the membrane permeability changes
- starts sodium potassium pump

Answer 17

depolarization

Question 18

after the max amount of sodium is pumped in, the membrane permeability changes again and the pump reverses

Answer 18

hyperpolarization

Question 19

boutons release a chemical or neurotrasmitter into the synaptic cleft

Answer 19

neurotransmitters

Question 20

types of neurotransmitters

Answer 20

• acetylcholine - excited CNS
• glutamate and aspartate - excited NS
• GABA most common

Question 21

random movement of particles through a gas or liquid

Answer 21

brownian movement

Question 22

depending on which chemical is released the effect on the next neurons dendrites may be excitatory or inhibitory
- causes depolarization

Answer 22

EPSP

Question 23

inhibitory postsynaptic potential

- causes hyperpolarization

Answer 23

IPSP