Test 2.0 Flashcards

(35 cards)

1
Q

What is a vestibular reflex

A

When you keep your head up when falling

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2
Q

Why do you have reflexes in your head?

A

To keep your orientation to the environment

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3
Q

What are low level reflexes

A

Spinal

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4
Q

What is a brain stem reflex?

A

Protection of extension

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5
Q

True or false

Does everyone have a starter reflex and if so when is it the strongest?

A

True and as babies

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6
Q

What two systems are connected?

A

Sensory and motor

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7
Q

What type of reflex does star fish have

A

Withdrawl reflex

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8
Q

What is the most common sensory system

A

Mechanical receptor

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9
Q

Define mechanical receptor

A

A mechanic system is transduced into neural codes “generate numeral system”

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10
Q

Define chemoreceptors

A

Respond to chemical stimuli ex: taste, smell, pain

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11
Q

What is the first roll of sensory system

A

Transduction

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12
Q

What is transduction

A

The process to taking energy and then coding it into a neural activity

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13
Q

True or false

Can you transduce anything

A

True

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14
Q

Explain phantom pain

A

When you can still feel pain in an extremity that no longer exist

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15
Q

What type of channels do axons have

A

Sodium voltage dependent channels

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16
Q

What do dendrites allow for?

A

Passive potential

17
Q

Where are the first nodes of raniver located

18
Q

Where does information comes in from and is apart of the spinal cord

19
Q

Where do motor neurons go out to activate muscles

A

Ventricular root

20
Q

True or false

Axons sodium voltage dependent channels are usually open

A

False

They are usually closed but can be manual opened

21
Q

What are mechanically gated ionic

A

Ion core that opens in response to being tugged on

22
Q

What is a generator potential

A

Is a passive potential that is produced by stimulation of a sensory receptor

23
Q

What is temporal submation

A

Stimuli in rapid succession build up enough current to he above threshold

24
Q

What is spacial submation

A

A branch of stimuli that occur at the same time but located around the same area (goes above threshold)

25
What is 2 point discrimination
A test of sensory resolution
26
What is a receptive field
Area of receptive tissue that produces an action potential
27
True or false | You always have overlapping receptive fields
True
28
True or false | The small the distance the finer the resolution
True
29
True or false | The larger the distance the less finer the resolution
True
30
What type of myelin does proprioception have
Thick myelin
31
What type of myelin does pain, temp, itch have
Thin myelin
32
Where on your body are you most sensitive
Fingers, cheek, nose, upper lip, and toes
33
What is first order neurons
Project information from sensory receptors to the sensory cord and brain stem
34
If an axon is fat what is the resistance like and what rate is info transmitted
If it's a fat axon it will have less resistance and transmits info fast and the opposite applys for a thin axon
35
Define proprioception
Sense of joint position and movement