parts of neuron

Question 1

aka perikaryon/soma

Answer 1

Cell Body

Question 2

Contains nucleus surrounded by cytoplasm, organelles such as lysosomes, mitochondria, Golgi complex.

Answer 2

Cell Body

Question 3

contains free ribosomes and clusters of rough ER known as __________ which is the site for CHON synthesis.

Answer 3

Nissl bodies

Question 4

________ are used to replace cellular components, material for growth of neurons, and regenerate axons in the PNS

Answer 4

CHONs

Question 5

includes neurofibrils providing cell shape and support while microtubule assists in moving materials between cell body & axon.

Answer 5

cytoskeleton

Question 6

a yellow to brown pigment that occurs in aging neurons is a product of neuronal lysosomes.

Answer 6

lipofuscin

Question 7

a neuronal process that receives or input portions of neuron.

Answer 7

Dendrites

Question 8

Contains numerous receptor sites for binding chemical messenger from other cells.

Answer 8

Dendrites

Question 9

a neuronal process that propagates nerve impulse toward another neuron, muscle fiber, or gland.

Answer 9

Axon

Question 10

is a cone shaped elevation of the cell body that joins with the axon

Answer 10

axon hillock

Question 11

is the part of the axon closest to the hillock.

Answer 11

initial segment

Question 12

AP arise in the junction of axon hillock and initial segment known as the

Answer 12

trigger zone

Question 13

is the cytoplasm of the axon.
No rough ER, No CHON synthesis.

Answer 13

axoplasm

Question 14

is the plasma membrane in the axon

Answer 14

axolemma

Question 15

are the side branches

Answer 15

axon collaterals

Question 16

(telodendria) are the fine processes when axon and collaterals divides.

Answer 16

axon terminals

Question 17

is the site of communication between neurons or between a neuron and effector cells.

Answer 17

synapse

Question 18

are the tips of axon terminals with swollen bumps called varicosities

Answer 18

synaptic end bulbs

Question 19

contains tiny membrane-enclosed sacs that stores neurotransmitters.

Answer 19

synaptic vesicles

Question 20

Can respond to stimuli and convert stimuli to electrical signals (nerve impulses or action potentials) that travel along neurons

Answer 20

Neurons

Question 21

nucleus, cytoplasm with typical organelles

Answer 21

Cell body (perikaryon or soma)

Question 22

highly branched structures that carry impulses to the cell body

Answer 22

Dendrites

Question 23

receiving or input portions of a neuron

Answer 23

Dendrites

Question 24

conducts away from cell body toward another neuron, muscle or gland

Answer 24

Axon

Question 25

Emerges at cone-shaped axon hillock

Answer 25

Axon

Question 26

contain synaptic vesicles that can release neurotransmitters

Answer 26

Axon terminals