Exam 1 Material

Question 1

Sensory neurons enter the spinal cord via the ____ root.

Answer 1

dorsal

Question 2

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

Answer 2

Thalamic

Question 3

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

Answer 3

gray

Question 4

Motor neurons exit the spinal cord via the ____ root to go to effectors.

Answer 4

ventral

Question 5

what makes up gray matter?

Answer 5

neuron cell bodies and interneurons

Question 6

What makes up white matter?

Answer 6

neuron axons

Question 7

The dorsal columns and spinothalamic tract contains:

Answer 7

ascending sensory axons

Question 8

The corticospinal tract contains:

Answer 8

descending motor axons

Question 9

The dorsal column contains sensory information including:

Answer 9

vibration, position, 2-point discrimination, and deep touch

Question 10

Is the dorsal column ipsilateral or contralateral?

Answer 10

Ipsilateral

Question 11

Carries info from the same side of the body:

Answer 11

Ipsilateral

Question 12

Is the dorsal column tract motor or sensory?

Answer 12

sensory

Question 13

Is the corticospinal tract motor or sensory?

Answer 13

motor

Question 14

Is the corticospinal tract ipsilateral or contralateral?

Answer 14

Ipsilateral

Question 15

The corticospinal tract contains motor info including:

Answer 15

paralysis, paresis, spasticity, hyper-reflexia, clonus, babinski sign

Question 16

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

Answer 16

skeletal muscles

Question 17

Is the spinothalmic tract motor or sensory?

Answer 17

sensory

Question 18

Is the spinothalmic tract ipsilateral or contralateral?

Answer 18

contralateral

Question 19

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

Answer 19

pain and temperature

Question 20

The brain breaks downs into what 6 sections?

Answer 20

1. cerebrum
2. diencephalon
3. midbrain
4. pons
5. medulla oblongata
6. cerebellum

Question 21

The cerebral cortex is considered what type of matter?

Answer 21

grey matter

Question 22

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

Answer 22

premotor cortex, primary motor cortex, prefrontal cortex, and brocas area

Question 23

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

Answer 23

primary sensory cortex & primary gustatory cortex

Question 24

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

Answer 24

primary auditory cortex, primary olfactory cortex, wernicke’s area

Question 25

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

Answer 25

Primary visual cortex

Question 26

For each sensory type, there is a ____ area and this is what receives the sensory info and allows us to perceive it. But there is also a ____ area, and this provides the context and meaning.

Answer 26

primary area; association area

Question 27

In about 95% of people, the left hemisphere is the ____ hemisphere

Answer 27

dominant/categorical

Question 28

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

Answer 28

corpus callosum

Question 29

receive and analyze signals from multiple regions of both sensory and motor cortices and subcortical areas

Answer 29

association areas

Question 30

Brocas area is located in the ___ lobe Wernickes area is lovated in the ___ lobe

Answer 30

frontal lobe; temporal lobe Mr. Broca puts on a front Mr. Wernicke has a temper

Question 31

Where are the preganglionic neurons located in the SNS

Answer 31

lateral gray horn of spinal cord

Question 32

Where are the preganglionic neurons located in the PNS?

Answer 32

motor nuclei of cranial nerves 3,7,9,10

Question 33

In the autonomic nervous system, all preganglionic fibers realease _____ that bind to _____ on the post-ganglionic neuron

Answer 33

ACh that bind to nicotinic receptors (type Nn)

Question 34

Acetylcholine activates )))) receptors in the