Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

Joseph is a 59-year-old construction worker who recently suffered a stroke. A small blood clot became lodged in one of the vessels serving the right side of his brain and restricted blood flow to a portion of his right precentral gyrus. Many neurons in that area were damaged or destroyed and, as a result, Joseph is partially paralyzed on the left side of his body. He is able to move his left leg and walk, and can also move his left arm, but his left hand and the left side of his face are paralyzed.

Answer the following problems about the case study:

Why were Joseph's left face and hand paralyzed, but not the rest of his arm or his leg?

What is preventing Joseph from moving his left hand? In your answer, include the following:

First, describe normal function of a motor neuron that forms a synapse with a muscle cell. How is the signal that initiates movement transmitted from the neuron to the muscle? Describe this process in detail.

Next, keeping in mind that the motor neuron itself is not damaged, describe how damage or destruction of a neuron that communicates with the motor neuron prevents Joseph from moving his hand.

With time, and perhaps some physical therapy, Joseph may recover some of the movement in his left hand and face. What factors might contribute to this recovery? In your answer, include the following:

Why can't Joseph's brain simply replace those neurons that were damaged and destroyed by the stroke?

How might compensation allow Joseph to regain some of his lost movement?

Describe at least one experimental treatment that might improve movement in Joseph's case, and describe how this treatment would impact Joseph's nervous system.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M943218

Have any Question? 


Related Questions in Biology

Cell cycle control information cdk is a protein cdk

Cell cycle control information: CDK is a protein. CDK regulate phosphorylation events of mitosis What is a cyclin? What is its relationship to cdks(cyclin-dependent kinases)? How do cyclins work? Which checkpoints are af ...

Much genetic evidence indicates that humans and chimpanzees

Much genetic evidence indicates that humans and chimpanzees are very closely related, despite the observation that chimpanzees have 48 chromosomes and we have only 46. At first, the difference in chromosome number was co ...

What are the characteristics of tropical waters temperate

What are the characteristics of tropical waters, temperate waters and polar waters?

Which cultures would be more likely to focus on external

Which cultures would be more likely to focus on external controls? Which cultures would consider direct controls to be more important than indirect controls? Be specific and explain your answer.

Microbiology1 for what specific purpose was gram staining

Microbiology 1. For what specific purpose was gram staining developed for? what is it used for today? 2. Why is the presence of air bubbles a sign of contamination? 3. Why is a gram stain helpful when monitoring bacteria ...

A child is born with a genetic disorder in which there is a

A child is born with a genetic disorder in which there is a deletion of part of a chromosome, and the child is predicted to be severely mentally retard. Which diagnosis should the nurse expect to see on the infant s char ...

In high altitudes is it necessary to have more or less

In high altitudes is it necessary to have more or less hemoglobin? Why is carbon monoxide toxic for humans? How is heart contraction triggered?

Why is it not possible for hiv medications to eliminate hiv

Why is it not possible for HIV medications to eliminate HIV in a confirmed HIV-positive patient?

Question 1 summarize the role that the atmosphere

Question 1: Summarize the role that the atmosphere conditions of wind speed, temperature, and stability potentially impact plume modeling activities with a Gaussian model. Question 2: First, discuss the six featured disp ...

Explain how these electrical currents of epsps and ipsps

Explain how these electrical currents of EPSPs and IPSPs are used in spatial and temporal summation to initiate or inhibit the generation of an action potential.

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro