BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

Solutions

Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
1 views

What chemicals is released by the axon terminals of a motor neuron at a neuromuscular junction?

  1. a. ACh
  2. b. serotonin
  3. c. dopamine
  4. d. epinephrine

Summary Introduction

Introduction: Neurons are brain cells that are specialized to transmit nerve impulses. A neuron consists of cell body, dendrites, and an axon. Synapse is the region where neurotransmitter (a signaling molecule) released by the axon terminals signals another cell. The signal-sending neuron at the synapse is called presynaptic cell, and the signal-receiving neuron is called postsynaptic cell.

Explanation

Reasons for the correct statement:

Neuromuscular junction is a type of synapse between a motor neuron and a skeletal muscle fiber. The motor neuron releases the neurotransmitter acetylcholine (ACh) at the neuromuscular junction.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “serotonin”. Serotonin elevates mood and plays a role in memory. It is mainly released by the neurons of the raphe nuclei in the brain. So, option b. is incorrect answer...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

After circulating around the cells of the tissues, all extracellular fluid then a. evaporates from the body. b....

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What are the four most common metric prefixes?

An Introduction to Physical Science

Why would you not plot sound waves in the electromagnetic spectrum?

Horizons: Exploring the Universe (MindTap Course List)

What is a community?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin

An open box slides across a frictionless, icy surface of a frozen lake. What happens to the speed of the box as...

Physics for Scientists and Engineers, Technology Update (No access codes included)