« previous next »

Author Question: Synaptic pruning a. is a normal part of brain development. b. is associated with mental ... (Read 70 times)

bobypop

  • Hero Member
  • *****
  • Posts: 539
on: Jun 21, 2018
Synaptic pruning
 
  a. is a normal part of brain development.
 b. is associated with mental retardation, and results in too few connections.
  c. results from insufficient amounts of neurotrophins.
 d. results from excess amounts of neurotrophins.

Question 2

The force of a movement is most directly controlled by
 
  a. the rate of motor neuron firing alone.
 b. recruitment of motor units alone.
 c. feedback from muscle spindles and recruitment.
 d. the rate of motor neuron firing and recruitment.


kxciann

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jun 21, 2018
Answer to Question 1

a

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m
This painting depicts New Orleans in 1803, when the city was acquired—along with much of the modern This painting depicts New Orleans in 1803, when the city was acquired—along with much of the modern
Body Part, Method of Examination, and Equipment Used During the General Physical Examination Body Part, Method of Examination, and Equipment Used During the General Physical Examination
Basic anatomy of the brain. Basic anatomy of the brain.
Social Development Social Development
Measuring Social Development Measuring Social Development
Video: Magnetic resonance imaging (MRI)

For a complete list of videos, visit our video library