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How It Works
The Nervous System
Nervous System Cells
CNS &
PNS
Random
100

The speed of the nervous system functions varies depending on what the body needs. Some actions may be voluntary actions while some may be _________.

Reflex Actions

100

The nervous system is a network of ______

Neurons

100

_____ are the structural and functional units of the nervous system

Neurons

100

The CNS is made up of the _____ and the ______

Encephalon and Spinal Cord

100

_____ _____ are fast, involuntary responses controlled by the spinal cord

Reflex actions

200

Voluntary actions are consious responses which are coordinated by the

Encephalon 

200

What does CNS stand for? 

Central Nervous System

200

The information received and generated by the nervous system travels in the form of ______

Nerve Impulses

200

______ ______ cushions and protects the encephalon from knocks and blows 

Cerebrospinal Fluid

200

The spinal cord is a long bundle of ____

Nerves

300

Any voluntary action requires ______ like touch, or sight. 

Receptors

300

What does PNS stand for?

Peripheral Nervous System

300

________ neurons are connected via their dendrites to a receptor

Sensory

300

The PNS is divided into the somatic and _____ PNS

Autonomic

300

Nerve impulses are waves of _____ _____

Natural Electricity 

400

A voluntary action includes a ____ ____ along which the command travels to the effector organ. 

Motor Nerve

400

The _______ is protected by the skull and 3 membranes

Encephalon

400

_____ Neurons are connected via their axon to an effector organ

Motor

400
The _____ PNS controls voluntary movements such as locomotion

Somatic

400

The ____ _____ (soma) houses the nucleus and the cytoplasmic organelles

Cell Body 

500

A voluntary action includes an _____ _____ (a muscle for example) which contracts voluntarily to carry out the response. 

Effector Organ

500

What are the sense organs? 

Eyes, Ears, Nose, Tongue, Skin

500

In nervous tissue, the neurons are accompanied by ____ ____ which are responsible for neuron nutrition, defence, and support

Glial Cells
500

The ____ PNS controls the involuntary function of the vital organs, such as the heart

Autonomic

500

The _____ has two hemispheres and a folded cortex. It is responsible for balance and pre-learnt voluntary movements such as walking, writing, or playing an instrument 

Cerebellum