Chapter 14: Intro to the nervous system Flashcards

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1
Q

The two main structural divisions of the nervous system are?

A
  1. Central
  2. Peripheral
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2
Q

The Central Nervous system (CNS) includes…

A
  • Brain
  • Brainstem
  • Spinal cord
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3
Q

Peripheral Nervous system (PNS) includes…

A
  • Crainal nerves (attached to the brain/brainstem)
  • Spinal nerves (attached to spinal cord)

take note that these are the ones that carry informaton too and from the CNS.

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4
Q

The sensory nervous system serves what purpose?

A

Transmits information from receptors to the CNS

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5
Q

The motor nervous system serves what prupose?

A

Transmits information from CNS to the rest of the body.

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6
Q

The sensory nervous system can be further broken down into…

A
  • Somatic Sensory
  • Visceral Sensory
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7
Q

The somatic sensory serves what purpose?

A

Receptors that recieve information from the skin, fascia, joints, skeletal muscles, and special tissues.

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8
Q

The function of the visceral sensory is to…

A

recieve sensory information from the viscera (organs).

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9
Q

The function of the somatic motor neurons is to..

A

Voluntary nervous signals sent out to the skeletal muscles.

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10
Q

Autonomic nervous system function is…

A

“Involuntary” nervous system which innervates cardiac muscle, smooth muscle, glands.

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11
Q

The two main classifications of cells are…

A
  1. Neurons
  2. Glial Cells
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12
Q

Neurons serve to…

A

Generate and carry electricla signals

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13
Q

Glial cells serve to…

A

Perform various supportive functions such as…

  • protect neurons
  • Regulat ionic balance in tissue
  • Immune functions
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14
Q

Dendrites serve what functional purpose?

A

Dendrites serve as the “recieving end” of the neuron in that they make connections with and recieve signals from other neurons and from receptors.

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15
Q

Function purpose of the soma

A

This is where the signal is interpreted/integrated along with other cellular functions.

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16
Q

Axon serves the purpose of…

A

Signal transmission; this means that it is the axon in which the signal travels down and passes the signal on to other cells.

17
Q

Axons communicate with other neurons, muscles, glands, etc., by releasing compounds known as..

A

Neurotransmitters

18
Q

Number 3 in this picture are neurons found in the CNS and lie either in-between two neurons such as sensory-motor, etc.

A

Internerons

19
Q

Identify number 1 in this photo

A

Dendrites

20
Q

Identify number 2 in this photo

A

Axon Hillock

21
Q

Number 3 is the…

A

Soma (Cell Body)

22
Q

Number 4 in this photo is the region which tramsits the electrical signal towards the terminals

A

Axon

23
Q

Number 5 serves as the final point in the transduction of the propogation of the neural electrical signal and is where neurotransmitter chemicals are released from

A

Synaptic Terminals

24
Q

Structurally, this is known as a…

A

Bipolar neuron

25
Q

Structurally, this is known as what type of neuron…?

A

Unipolar

26
Q

Structurally this is what type of neuron?

A

Multipolar

27
Q
A