Question 11 pts The spinothalamic tract conveys what type of sensory information

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Question 11 pts

The spinothalamic tract conveys what type of sensory information to the primary somatosensory cortex? Select all that apply.

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Question 21 pts

In regards to the spinothalamic tract, where does the second order neuron cross the midline?

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Question 31 pts

Match the term on the left with the term on the right.

Frontal lobe

      [ Choose ]            Parietal lobe            Audition            Vision            Frontal lobe            Higher order thinking            Somatosensory      

Parietal lobe

      [ Choose ]            Parietal lobe            Audition            Vision            Frontal lobe            Higher order thinking            Somatosensory      

Temporal lobe

      [ Choose ]            Parietal lobe            Audition            Vision            Frontal lobe            Higher order thinking            Somatosensory      

Occipital lobe

      [ Choose ]            Parietal lobe            Audition            Vision            Frontal lobe            Higher order thinking            Somatosensory      

postcentral gyrus

      [ Choose ]            Parietal lobe            Audition            Vision            Frontal lobe            Higher order thinking            Somatosensory      

precentral gyrus

      [ Choose ]            Parietal lobe            Audition            Vision            Frontal lobe            Higher order thinking            Somatosensory      

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Question 41 pts

Brown Sequard Syndrome is caused by the damage to one half of the spinal cord. This lesion results in:

Select all that apply.

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Question 51 pts

*** This is an example of a test question ***

In discussing descending pathways, we talked about neurons whose conductile processes are in the internal capsule. These neurons:

Explanation / Answer

1) The spinothalamic tract conveys the sensory information to the primary somatosensory cortex for :
PAIN : it is carried in lateral spinothalamic tract

Discriminative touch : It is carried in ventral spinothalamic tract

Temperature : It is carried in  lateral spinothalamic tract via free nerve endings

Pressure : It is carried in ventral spinothalamic tract

2) The second order neuron in spinothalamic tract crosses the midline at brainstem and then to the thalamus.

The axons of these neurons are known as nucleus proprius, which ascend to the brainstem and thalamus in the antereolateral quadrant of spinalcord. They are mainly responsible of conveying pain and temperature.

3) Each side of lobes in our brain contains four lobes.All the lobes have distinct and specifit functions.

Frontal lobe : Higher order thinking is processed by frontal lobe as it is primarily responsible for speech, personality and motor development

Occipital lobe : vison procession center is in occipital lobe

Temporal lobe : Auditory cortex lies in temporal lobe.

Parietal lobe : postcentral gyrus of the anterior parietal lobe is somatosensory cortex.

4) Brown-Sequard syndrome is caused by damage of half of the spinalcord and results in loss of proprioreption on the same side of lesion while results in loss of pain and temperature in opposite side of lesion.

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