cellular basis of nervous system

Question 1

main point of reticular theory?

Answer 1

NS is a network of interconnected cells -> info transmitted in continuous flow

Question 2

main point of neuron doctrine?

Answer 2

NS made of discrete individual cells -> electrical pulses pass thru individual cells

Question 3

who found reticular theory?

Answer 3

Golgi

Question 4

who found neuron doctrine?

Answer 4

Cajal

Question 5

what is a basic unit of nervous system?

Answer 5

Neuron

Question 6

main structures of neuron

Answer 6

-cell body (soma)
-dendrite
-axon
-axon hillock
-presynaptic nerve terminal

Question 7

which structure of the neuron where signal come in and integrated (occur more in dendrite)?

Answer 7

cell body (soma)

Question 8

which structure of the neuron has branch-like extensions of a neuron that receive signals from other neurons and transmit them toward the cell body?

Answer 8

dendrite

Question 9

which structure of the neuron receives both excitatory (spines) and inhibitory (shaft) input?

Answer 9

dendrite

Question 10

which structure of the neuron that carries electrical signals away (and toward) the soma?

Answer 10

axon

Question 11

which structure of the neuron that can be mylinated?

Answer 11

axon

Question 12

which structure of the neuron that trigger zone of action potential?

Answer 12

axon hillock

Question 13

which structure of the neuron release chemical signal to next cell?

Answer 13

presynaptic nerve terminal

Question 14

where does the point where cells contact with each other?

Answer 14

synapse

Question 15

shapes of neurons

Answer 15

• unipolar
• bipolar
• pseudounipolar
• multipolar