Nervous System Basics Flashcards

(39 cards)

1
Q

2 main functional parts of the Nervous system

A

Autonomic

Somatic

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2
Q

Somatic nervous system?

A

Voluntary system controls
Skeletal muscles, skin, (contraction and reflex)

Made up of sensory (Afferent) and motor (Efferent) nerurones

Part of the peripheral nervous system

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3
Q

Nervous system responsibilities

A

Monitor internal and external responses and makes a response accordingly

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4
Q

Decisions are made in the?

A

Cortex (brain) plus along the spinal cord and in the gut

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5
Q

Neurones stimulant

A

Change and force in environment,

Sensory nerve endings

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6
Q

5 special senses

A
Vision
Hearing
Taste
Balance
Smell
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7
Q

Detect sensations via

A

Through different types of receptor in end of nerve cells

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8
Q

Make up of spinal cord

A

Cross connection, supporting tissue and nerves travelling up and down

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9
Q

Which neurones go up and which go down the spinal cord

A

Sensory - up

Motor - down

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10
Q

How many neurones in the sensory pathway to cortex of the brain

A

3

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11
Q

Parts of Peripheral nervous system

A

ANS & VNS

Autonomic and visceral nervous system

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12
Q

Efferent

A

Out going - motor neurones

have an effect

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13
Q

Afferent

A

In coming .sense - assess

Sensory neurones

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14
Q

Ganglion means

A

Swelling

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15
Q

7 Somatic sensations

A
Touch
Pressure
Vibration
Temperature 
Pain
Proprioception (awareness of where your body is in space)
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16
Q

How many neurones in the somatic motor pathway to cortex

17
Q

What neurones are in the back of the spinal cord

18
Q

Neurones in front of spinal cord

A

Motor

Motor neurones also go out the side

19
Q

What’s Dorsal root ganglion

A

Group of nerves clustered together.

- found in sensory neurones

20
Q

All plexi are formed from the central primary division of the peripheral nerve.

21
Q

Plexus

A

Singular of plexi . Connection and Crossing over of neurones

22
Q

Location of brachial plexus

A

Behind the clavicle and in front of the first rib

23
Q

5 main nerves from the brachial plexus

A

Radial, musculocutaneous, ulnar , axillary, median

24
Q

What do Autonomic nerves control and provide another name?

A
Involuntary nerves (visceral VNS)- controls smooth muscles, blood vessels, heart, and all other organs, sexual
Organs

Forms part of the peripheral nervous system

25
What nervous system does the parasympathetic and sympathetic fall under
Autonomic nervous system ANS
26
Parasympathetic is dominate when are at at rest and digest - anabolic
Sympathetic is dominant when we are under stress - fight and flight - catabolic
27
Anabolism term
Chemical reaction that builds small molecules into larger ones - requires energy
28
Catabolism term
Chemical reaction that breaks down large molecules into smaller ones - releases energy
29
Sympathetic motor NS where does it emerge from
Btw T1 - L2 (in front Spinal cord in rib ) | No sympathetic Motor Neurones above or below these point
30
Two geographical parts of the somatic nervous system
CNS & PNS central nervous system and peripheral nervous system
31
Where do the parasympathetic motor neurones emerge from
C 3,7,9 & 10 and S 2,3,4
32
In the parasympathetic NS where are the joins (synapses) btw the pre ganglionic motor neurone and the post ganglionic motor neuron
In the organ
33
In the parasympathetic NS up which cranial nerve do the physiological and stretch sensations go
C9,10
34
How many spinal peripheral nerves are there
31 | Emerging from C1 - S5
35
What are the two main functional (jobs) parts of the somatic nervous system
Skin and skeletal
36
Where is the somatic nervous system located geographically
Skeletal Muscle and skin
37
Why does the autonomic NS wants to maintain a constant internal environment
So the body chemistry/ physiology can function as it should and maintain a healthy working environment
38
Parasympathetic NS is dominant when
Anabolic state - rest / digest state
39
Parasympathetic NS the post ganglionic neurones are very long or short
Short