Please answer all 32 questions i really need help Thank you QUESTION 1 While tou

Question

Please answer all 32 questions i really need help

Thank you

QUESTION 1

While touch pathways show immediate decussation, the spinothalamic second order neurons remain ipsilateral as they ascend through the spinothalamic tract.

True

False

QUESTION 2

The larger the diameter of the axon, the faster the speed of conduction is (in terms of action potentials).

True

False

QUESTION 3

Lateral dendrites of MSO neurons receive input from the contralateral AVCN while medial dendrites receive input from ipsilateral AVCN fibers.

True

False

QUESTION 4

If you were to be touched on your shoulder, 1st order afferents ascend through the gracile fasciculus in the cervical spinal cord.

True

False

QUESTION 5

The VPL thalamic nucleus sends information to S1 in our body's touch pathway.

True

False

QUESTION 6

Identifying what a sound is involves the prefrontal areas of the brain while localizing sound in the environment uses the posterior parietal cortex.

True

False

QUESTION 7

John hears a musical song while in an fMRI. The researcher tells John that his left hemisphere was more activated True or false?

True

False

QUESTION 8

The scala media is rich in K+ while the scale vestibuli and tympani are rich in Na+.

True

False

QUESTION 9

If you hear a sound coming from the right, the neurons of the left LSO will be inhibited and the neurons of the right LSO will be excited.

True

False

QUESTION 10

The vagus nerve is responsible for carrying touch and pain sensation of the face.

True

False

QUESTION 11

Movement of the tympanic membrane leads to movement of the oval window.

True

False

QUESTION 12

Mutations in SCN9A, a voltage-gated K+ channel can lead to individuals not being able to perceive pain.

True

False

QUESTION 13

Projections from the posteroventral & dorsal cochlear nuclei are contralateral while those from the anteroventral cochlear nuclei are ipsilateral.

True

False

QUESTION 14

The spiral ganglion cells of the inner ear are unipolar.

True

False

QUESTION 15

Mild pain releases glutamate while stronger pain releases Substance P as well as GABA.

True

False

QUESTION 16

Both otolithic organs and semicircular canals need drastic movements in order to displace their more dense cacula.

True

False

QUESTION 17

Inputs from the brainstem all converge in the medial geniculate nucleus (MGN) of the thalamus.

True

False

QUESTION 18

If I were to train a monkey to discriminate a stimulus on 2 digits specifically, cortical area devoted to those 2 digits would show an increase in size.

True

False

QUESTION 19

While A delta fibers command our "first" pain information, it is the A beta fibers that have slower conduction velocity conveying our "second" pain processing.

True

False

QUESTION 20

There are 3 otolith organs and 2 semicircular canals.

True

False

QUESTION 21

The temporal lobe contains the primary auditory cortex.

True

False

QUESTION 22

In making a saccade to the right, it is imperative that the left lateral rectus is activated and the right medial rectus is activated.

True

False

QUESTION 23

The medial geniculate nucleus is the thalamic nucleus responsible for processing of somatosensory information from the body.

True

False

QUESTION 24

The VPL nucleus receives information from the body while the VPM nucleus receives information from the face.

True

False

QUESTION 25

The influx of Na+ from the scala vestibuli is critical in mechanotransduction to occur in the vestibular system.

True

False

QUESTION 26

Due to entry of K+, voltage-gated Ca2+ channels lead to the release of glutamate onto spiral ganglion fibers.

True

False

QUESTION 27

The ventral posterior nucleus of the thalamus receives projections from vestibular nuclei.

True

False

QUESTION 28

The wide, floppy apex of the basilar membrane is maximally displaced by high frequency sound.

True

False

QUESTION 29

If asked to discriminate objects in a bag, your Meissner's corpuscles would be important for this task.

True

False

QUESTION 30

Periaqueductal gray neurons send descending axons into various regions of the medulla releasing serotonin.

True

False

QUESTION 31

The vestibular system is the only sensory system to send projection fibers directly to the cerebellum.

True

False

Explanation / Answer

1. True

2.True

3.True

4.False- Gracile Fasciiculus carries proprioreception signals from the lower limb.

5.True

6.True

7.True

8.True

9.True

10.False- Vagus nerve handles the subcinscious functions like heart rates etc.

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