This topic contains a solution. Click here to go to the answer

Author Question: The motor units of the thumb, fingers, and face contain the A) fewest muscle fibers. B) most ... (Read 62 times)

schs14

  • Hero Member
  • *****
  • Posts: 569
The motor units of the thumb, fingers, and face contain the
 
  A) fewest muscle fibers.
  B) most muscle fibers.
  C) fewest motor neurons.
  D) most motor neurons.
  E) most extensors.

Question 2

In the classic experiments of Lawrence and Kuypers, the descending motor tracts of monkeys were transected. The results of these experiments suggest that the function of the ventromedial pathways is the control of
 
  A) posture.
  B) movements of the body core and associated arm movements.
  C) reaching for objects.
  D) all of the above
  E) both A and B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ambernicolefink

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

Answer: A

Answer to Question 2

Answer: E





 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

For a complete list of videos, visit our video library