This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Describe a motor unit. How many fibers does a motor unit contain? ... (Read 43 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
on: Feb 28, 2019
Describe a motor unit. How many fibers does a motor unit contain?

Question 2

A hypothetical genetic disease causes the body to produce antibodies that compete with acetylcholine for receptors on the motor end plate. Patients with this disease exhibit varying degrees of muscle weakness in the affected muscles. If you could administer a drug that inhibits acetylcholinesteras e or a drug that blocks acetylcholine, which one would you use to alleviate these symptoms?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Feb 28, 2019
Answer to Question 1

A motor unit consists of all of the skeletal muscle fibers controlled by a single motor neuron. They may have as few as 10 fibers (eye muscles) or as many as 10,000 (back muscles).

Answer to Question 2

This is a case of competition between acetylcholine and the antibody. To make the patient's acetylcholine more effective, a drug that inhibits acetylcholinesteras e would slow the breakdown of acetylcholine, relieving some of the weakness. An acetylcholine blocker would be worse than doing nothing.


strangeaffliction

  • Member
  • Posts: 660
Reply 2 on: Feb 28, 2019
:D TYSM

sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Gaser and Schlaug's study of the size of visual, motor, and auditory nuclei in the brains of mu Gaser and Schlaug's study of the size of visual, motor, and auditory nuclei in the brains of mu
Sensory, motor, interneuron, and effector Sensory, motor, interneuron, and effector
Sensory, motor, interneuron, and effector Sensory, motor, interneuron, and effector
Controlled cold compression unit. Controlled cold compression unit.
The Body as Mapped on the Motor Cortex and Somatosensory Cortex The Body as Mapped on the Motor Cortex and Somatosensory Cortex
Structure of the bacterial flagellar motor from Salmonella enterica Structure of the bacterial flagellar motor from Salmonella enterica
Video: Hydrogen bonds vs. Ionic bond

For a complete list of videos, visit our video library