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Physiology > Exam I material > Flashcards

Exam I material Flashcards

1
Q

Sensory neurons enter the spinal cord via the ____ root

A

Dorsal

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2
Q

_____ excitation of the cerebral cortex is necessary for almost all cortical activity

A

thalamic

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3
Q

Sensory neurons enter the spinal cord via the dorsal root and then synapse with the interneurons and/or motor neurons in the ______ matter

A

gray

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4
Q

Motor neurons exit the spinal cord via the _____ root to go to effectors

A

Ventral

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5
Q

What makes up gray matter?

A

Neuron cell bodies & interneurons

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6
Q

What makes up white matter?

A

Neurons axons

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7
Q

The dorsal columns & spinothalamic tract contains:

A

Ascending sensory axons

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8
Q

The corticospinal tract contains:

A

Descending motor axons

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9
Q

Dorsal column contains sensory information including:

A

Vibration
Position
Two-point discrimination
Deep touch

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10
Q

Is the dorsal column ipsilateral or contralateral?

A

Ipsilateral

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11
Q

Carries information from the same side of the body

A

Ipsilateral

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12
Q

Is the dorsal column tract motor or sensory?

A

Sensory

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13
Q

Is the corticospinal tract motor or sensory?

A

Motor

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14
Q

Is the corticospinal tract ipsilateral or contralateral?

A

Ipsilateral

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15
Q

The corticospinal tract contains motor information including:

A

Paralysis
Paresis
Spasticity
Hyper-reflexia
Clonus
Babinski sign

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16
Q

The corticospinal tract contains descending axons that are carrying motor information to control _____ on the same side of the body

A

Skeletal muscles

17
Q

Is the spinothalmic tract motor or sensory?

A

Sensory

18
Q

Is the spinothalmic tract ipsilateral or contralateral?

A

Contralateral

19
Q

The spinothalmic tract contains sensory axons that transmit information up to the brain about:

A

Pain & temperature

20
Q

The brain breaks down into what six sections?

A
  1. Cerebrum
  2. Diencephalon
  3. Midbrain
  4. Pons
  5. Medulla Oblongata
  6. Cerebellum
21
Q

The cerebral cortex is considered what type of matter?

A

Grey matter

22
Q

What specialized areas reside within the frontal lobe of the cerebrum?

A

Premotor cortex, Primary motor cortex, Prefrontal cortex & Broca’s area

23
Q

What specialized areas reside within the parietal lobe of the cerebrum?

A

Primary sensory cortex & Primary gustatory cortex

24
Q

What specialized areas reside within the temporal lobe of the cerebrum?

A

Primary auditory cortex, Primary olfactory cortex, Wernicke’s area

25
Q

What specialized areas reside within the occipital lobe of the cerebrum?

A

Primary visual cortex

26
Q

For each sensory type there is ____ area & this is what receives the sensory information and allows us to perceive it. However there is also a _____ area & this provides the context & meaning

A

Primary area
Association area

27
Q

In about 95% of people the left hemisphere is the _________ hemisphere

A

Dominant/Categorical

28
Q

Allows for information stored in one hemisphere available to the opposite hemisphere

A

Corpus callosum

29
Q

Receive & analyze signals from multiple regions of both sensory & motor cortices & subcortical areas

A

Association areas

30
Q

Brocas area is located in the ____ lobe

Wernicke’s area is located in the ____ lobe

A

Frontal lobe
Temportal lobe

Mr. Broca puts on a FRONT
Mr. Wernicke has a TEMPer

31
Q

Where are the preganglionic neurons located in the SNS?

A

Lateral grey horn of spinal cord

32
Q

Where are the preganglionic neurons lcoated in the pNS

A

Motor nuclei of cranial nerves (3, 7, 9, 10)

33
Q

In the autonomic nervous system, all preganglionic fibers release ____ that bind to _____ on the postganglionic neuron

A

ACH
Nicotinic receptors (type NN)

34
Q

Acetylcholine actives ____ receptors in the auto

A

Nicotinic

Physiology (11 decks)

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