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Biology-Related Homework Help General Biology Topic started by: chanel8 on Nov 19, 2014



Title: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: chanel8 on Nov 19, 2014
 :)
Post Merge: 9 years ago

If Sarah had skin vesicles on the anterolateral region of her neck, which peripheral nerve is infected by the virus? To which peripheral nerve plexus does this nerve belong?
Post Merge: 9 years ago

If Sarah had a viral infection that affected neuron function in the ventral root of the same spinal nerve, how would the signs and symptoms be different than those she has now?
Post Merge: 9 years ago

If we traced the sensory pathways that carry Sarah’s thigh pain up to her brain, which cerebral lobe AND which part of the cortex would be active when she feels this sensation?


Title: Re: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: padre on Nov 19, 2014
Here's a similar question:

1). Based on what you know about their stimuli, which type of sensory receptor is activated and causing Sarah’s symptoms of pain and paresthesia?


2). The virus infecting Sarah lies dormant in the dorsal root ganglion. What part of a neuron is located in the dorsal root ganglion? Does the dorsal root and its ganglion carry sensory input, motor output, or both?


3). Based on the pattern of skin vesicles and pain, which of Sarah’s peripheral nerves is infected? To which peripheral nerve plexus does this nerve belong?


4). If Sarah had skin vesicles on the anterolateral region of her neck, which peripheral nerve is infected by the virus? To which peripheral nerve plexus does this nerve belong?


5). If Sarah had a viral infection that affected neuron function in the ventral root of the same spinal nerve, how would the signs and symptoms be different than those she has now?


6). If we traced the sensory pathways that carry Sarah’s thigh pain up to her brain, which cerebral lobe AND which part of the cortex would be active when she feels this sensation?

1)nociceceptor
2)somatic sensory, sensory input
3)fibular (peroneal) nerve ( sacral plexus)
4)transverse cutaneous nerve, cervical plexus
5)The symptoms that are caused by affected ventral roots are the following:
Loss of movement in the extremities
Back pain
Pain radiating into the buttocks
Pain radiating down the legs
Numbness, tingling, burning of the hands or feet
Fatigue
Fever
Weakness

Sarah on the other hand oral fever, she has a burning sensation of the thigh but no numbness
6) parietal lobe

"My Leg is on Fire"  Case Study on Spinal and Peripheral Nerve Anatomy (https://biology-forums.com/index.php?topic=161016.0)


Title: Re: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: chanel8 on Nov 19, 2014
Thank you! ;)


Title: Re: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: padre on Nov 19, 2014
My pleasure, let me know if you need anything else.


Title: Re: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: chanel8 on Nov 19, 2014
what type of interneuron is receiving the feeling of paresthesia from Sarah`s thigh?
a.) visceral sensory
B.) somatic motor
C.) somatic sensory
D.)visceral motor
How about this?

Which of the following correctly pairs the peripheral nerve with its nerve plexus?
a.) fibular(peroneal) nerve (plexus)
b.) posterior femorsl cutaneous nerve (lumbar plexus)
c.) ilioinguinal nerve (brachial plexus)
d.) axillary nerve (cervical plexus)

Based on the anatomical location of blisters, which of Sarah`s peripheral nerves is affected by this disease process?
a.) obturator nerve
b.) posterior femoral cutaneous nerve
c.) fibular branch of sciatic nerve
d.) tibial branch pf the sciatic nerve


Title: Re: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: padre on Nov 19, 2014
The only one I think I might know is for #2.

b.) posterior femorsl cutaneous nerve (lumbar plexus)


Title: Re: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: chanel8 on Nov 19, 2014
again thank you for your time and effort answering my questions.  ;)
Post Merge: 9 years ago



Title: Re: Does the dorsal root and its ganglion carry sensory input, motor output, or both
Post by: padre on Nov 19, 2014
again thank you for your time and effort answering my questions.  ;)
Post Merge: 9 years ago



My pleasure, but what did you get for those questions? Maybe I can build on your thought process.