Test 2.0 Flashcards

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

A

Axon hillock

18
Q

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

A

Dorsal root

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
Q

What is 2 point discrimination

A

A test of sensory resolution

26
Q

What is a receptive field

A

Area of receptive tissue that produces an action potential

27
Q

True or false

You always have overlapping receptive fields

A

True

28
Q

True or false

The small the distance the finer the resolution

A

True

29
Q

True or false

The larger the distance the less finer the resolution

A

True

30
Q

What type of myelin does proprioception have

A

Thick myelin

31
Q

What type of myelin does pain, temp, itch have

A

Thin myelin

32
Q

Where on your body are you most sensitive

A

Fingers, cheek, nose, upper lip, and toes

33
Q

What is first order neurons

A

Project information from sensory receptors to the sensory cord and brain stem

34
Q

If an axon is fat what is the resistance like and what rate is info transmitted

A

If it’s a fat axon it will have less resistance and transmits info fast and the opposite applys for a thin axon

35
Q

Define proprioception

A

Sense of joint position and movement