Chapter 33.1, Problem 3MI

Summary Introduction

To determine:

The correct term for the given definitions.

Introduction:

Cell membrane is also termed as plasma membrane. It is found in all cells and it separates the interior side of the cell from the extracellular matrix. The transport of molecules and ions across the cell membrane occurs via active transport, passive transport, and facilitated transport.

Explanation of Solution

Neuron − Specialized cells that help you gather information about your environment, interpret the information, and react to it.

Dendrites − These are the structures in neuron that receive impulses from other neurons and transmit them to cell body.

Cell body − It contains the nucleus and other organelles of the neuron.

Axon − It is the region of neuron that carries electrical impulse from the cell body of a neuron to the other neurons and muscles.

Reflex arc − It is the nerve pathway that consists of a sensory neuron, interneuron, and the motor neuron. It is the basic structure of the nervous system.

Action potential − It is the nerve impulse.

Threshold − It is the minimum stimulus required to produce the action potential.

Node − A gap found in myelin sheath along the length of axon.

Synapse − The gap between the axon of a neuron and the dendrite of next neuron.

Neurotransmitter − It is the chemical that diffuses across the synapse and binds to receptors on the dendrite of a neighboring cell.