Question 1

The relative refractory period of an axon coincides with the period of

Accepted Answer

A) activation and inactivation of voltage-dependent Na+ channels. 
B) Na+ permeability that is greater than that during the depolarization phase. 
C) increased K+ flux into the cell. 
D) increased K+ permeability of the cell. 
E) Increased Na+ flux through K+ channels. 
A) activation and inactivation of voltage-dependent Na+ channels. 
B) Na+ permeability that is greater than that during the depolarization phase. 
C) increased K+ flux into the cell. 
D) increased K+ permeability of the cell. 
E) Increased Na+ flux through K+ channels.

Question 2

How is the strength of a stimulus encoded by neurons?

Accepted Answer

A) by the size of action potentials 
B) by the frequency of action potentials 
C) by the duration of action potentials 
D) by whether the action potential peak is positive or negative 
A) by the size of action potentials 
B) by the frequency of action potentials 
C) by the duration of action potentials 
D) by whether the action potential peak is positive or negative

The relative refractory period of an axon coincides with the period of

How is the strength of a stimulus encoded by neurons?

Homeostasis: a Framework for Human Physiology

Chemical Composition of the Body

Cellular Structure, Proteins, and Metabolism

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

Defense Mechanisms of the Body

Medical Physiology: Integration Using Clinical Cases

Filters

Exam 6: Neuronal Signaling and the Structure of the Nervous System

The relative refractory period of an axon coincides with the period of

How is the strength of a stimulus encoded by neurons?

Homeostasis: a Framework for Human Physiology

Chemical Composition of the Body

Cellular Structure, Proteins, and Metabolism

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

Defense Mechanisms of the Body

Medical Physiology: Integration Using Clinical Cases

Filters