Author Question: Denise, a first year graduate student, is getting ready to begin a lab rotation with Dr. Hudson, an ... (Read 67 times)

CORALGRILL2014

  • Hero Member
  • *****
  • Posts: 525
Denise, a first year graduate student, is getting ready to begin a lab rotation with Dr. Hudson, an expert on the nodes of Ranvier. What should Denise know about the nodes of Ranvier before beginning her lab rotation?
 
  a. Action potentials occur only at the nodes of Ranvier in unmyelinated axons.
  b. Action potentials occur only at the nodes of Ranvier in myelinated axons.
  c. Action potentials skip over the nodes of Ranvier in unmyelinated axons.
  d. Action potentials skip over the nodes of Ranvier in myelinated axons.

Question 2

A squid axon is large enough to be visible to the naked eye, while a human axon can only be viewed with a microscopic. Compared with an action potential for a human axon, the size of an action potential for a squid axon will be ____.
 
  a. the same
  b. smaller
  c. larger
  d. smaller or larger depending on the length of the axon



micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Answer to Question 1

ANSWER:
b

Answer to Question 2

ANSWER:
a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

For a complete list of videos, visit our video library