Neuroscience Basics Quiz

Podcast

Play an AI-generated podcast conversation about this lesson

Download our mobile app to listen on the go

Get App

Questions and Answers

Which part of the neuron is responsible for receiving messages?

Axon
Dendrites (correct)
Nucleus
Cell body

The spinal nerves are responsible for carrying messages only from the brain.

False (B)

What are the three types of nerves found in the nervous system?

Sensory, motor, mixed nerves

A reflex action is an automatic response to a ___ from the environment.

stimulus Signup and view all the answers

Match the following terms related to reflex actions with their definitions:

Stimulus = A change in the environment that causes a response Response = The action taken as a result of a stimulus Impulses = Signals transmitted along neurons Receptor = A sensory organ that detects stimuli Signup and view all the answers

What is the function of the myelin sheath surrounding an axon?

To speed up transmission of impulses (D) Signup and view all the answers

The autonomic nervous system controls voluntary actions like muscle movement.

False (B) Signup and view all the answers

What are the three main parts of a neuron?

Cell body, dendrites, axon Signup and view all the answers

The gap between two neurons is known as the __________.

synapse Signup and view all the answers

Match the types of nerves with their primary function:

Sensory nerves = Carry messages from sensory organs to the CNS Motor nerves = Transmit messages from the CNS to muscles or glands Mixed nerves = Carry messages in both directions, including sensory information Autonomic nerves = Control involuntary body functions Signup and view all the answers

Flashcards

Neuron

The basic unit of the nervous system, a nerve cell that transmits messages throughout the body.

Nervous System

The network that controls and coordinates body functions; it carries messages to various parts of the body.

Motor Neuron

A type of neuron that carries messages from the brain or spinal cord to a muscle or gland.

Structure of Neuron

Neurons have three main parts: cell body, axon, and dendrites.

Signup and view all the flashcards

Reflex Action

An automatic, involuntary response to a stimulus.

Signup and view all the flashcards

Neuron structure

Neurons have a cell body (cyton), dendrites that receive signals, and an axon that carries signals away. The axon may be covered by a myelin sheath.

Signup and view all the flashcards

Synapse function

The synapse is the gap between neurons where communication occurs. Electrical signals are converted to chemical signals to cross the gap. Neurons don't touch directly.

Signup and view all the flashcards