« previous next »

Author Question: Synaptic pruning a. is a normal part of brain development. b. is associated with mental ... (Read 57 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?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra
The pineal gland is a part of the thalamus region of the brain. It secretes melatonin. The pineal gland is a part of the thalamus region of the brain. It secretes melatonin.
brain brain
Brain Dissection Brain Dissection
How to convert verbal statements into algebraic equations (Part 1) How to convert verbal statements into algebraic equations (Part 1)
Seven-week embryo showing development of arm, forearm, and hand Seven-week embryo showing development of arm, forearm, and hand
Video: Fetal development - Weeks 9 to 38

For a complete list of videos, visit our video library