Science Test 1 - Nervous System

Question 1

What is second function of the nervous system?

Answer 1

Coordinates response to changes

Question 2

What is the term given to describe the whole process from sensory to interneuron to motor neuron?

Answer 2

A reflex arc

Question 3

What is the gap between neurons called?

Answer 3

Synapses or synapse

Question 4

What is a Relay Neuron?

Answer 4

Creates neural circuits that enable communication between sensory and motor neurons and the central nervous system

Question 5

What is a nervous system tissue?

Answer 5

Nervous Tissue

Question 6

What is a nervous system cell?

Answer 6

Neuron

Question 7

What is a sensory neuron?

Answer 7

Carries messages from receptor cells in sense organs

Question 8

What is stimuli or stimulus

Answer 8

Changes

Question 9

What happens in reflexes?

Answer 9

The message travels to the spinal cord then gets turned around by an interneuron. This neuron sends the signal straight back out to the motor neuron, making the muscle move.

Question 10

What is third function of the nervous system?

Answer 10

Transmits messages in form of electrical signals

Question 11

What are the two categories of the PNS (Peripheral nervous system)

Answer 11

Somatic and Autonomic

Question 12

What are effectors?

Answer 12

Muscles or glands that translate the messages into action

Question 13

What is a nervous system organ?

Answer 13

Brain, spinal cord, nerves and sensory organ

Question 14

What is first function of the nervous system?

Answer 14

Detects changes that impact the body

Question 15

What is a motor neuron?

Answer 15

Carries messages from brain and spinal cord to effectors

Question 16

How do neurons communicate?

Answer 16

Gap between neurons (synapase), and chemicals (neurotransmitters) diffuse across gap before next cell is stimulated.+

Question 17

What is Parasympathetic PNS?

Answer 17

Rest and digest (Slows down and relaxes the body, allowing it to rest)

Question 18

What is the human nervous system?

Answer 18

Communication system that controls all parts of body

Question 19

What are the two main parts of the human nervous system?

Answer 19

Central nervous system - brain, spinal cord and peripheral nervous system - cranial nerves, spinal nerves

Question 20

What is the central nervous system?

Answer 20

Control center of the body that provesses incoming messages from the environment

Question 21

What is Sympathetic PNS?

Answer 21

Flight/Fight/Freeze (Speeds up bodily processes)

Question 22

Cerebellum

Answer 22

Responsible for muscle control, including balance and movement

Question 23

Cerebrum

Answer 23

Initiates and coordinates movement and regulates temperature

Question 24

What is a reflex?

Answer 24

A reflex is when your body needs to respond very quickly

Question 25

Brain stem

Answer 25

Responsible for many vital functions of life

Question 26

Hypothalamus

Answer 26

Works directly on autonomic system to manage functions

Question 27

What is Autonomic?

Answer 27

Regulates automatic body function (heatbeat), Involuntary

Question 28

What is somatic?

Answer 28

Takes info to and from our CNS to respond to the environment (VOLUNTARY)

Question 29

What is the order of the stimulis response plan?

Answer 29

Stimulis, sensory neuron, brain (control centre), motor neuron, effector, response.

Question 30

What are the two parts of the autonomic PNS?

Answer 30

Sympathetic and parasympathetic

Question 31

Pituitary gland

Answer 31

Regulates growth metabolism and reproduction through the hormones it produces