Control and Coordination – Nervous System

20 fill-in-the-blank flashcards covering key concepts about the animal nervous system, reflex actions, brain regions, and protection and function of nervous and muscular tissues.

Specialised tips of nerve cells that pick up stimuli are called .

receptors

The gap between two neurons where chemical messengers carry the signal is the .

synapse

The electric impulse in a neuron travels from the cell body along the .

axon

At a synapse, chemicals trigger a new impulse in the of the next neuron.

dendrite

A quick, automatic response to a stimulus is produced through a .

reflex arc

Reflex arcs are chiefly located in the .

spinal cord

The brain and spinal cord together make up the system.

central nervous

Nerves that arise directly from the brain are called nerves.

cranial

The main thinking region of the human brain is the -brain.

fore

Feelings of hunger or fullness are regulated by centres in the -brain.

fore

Precision of voluntary movements and body balance are controlled by the .

cerebellum

Involuntary actions like salivation and vomiting are controlled by the of the hind-brain.

medulla

The spinal cord is protected by the bony .

vertebral column

The fluid-filled balloon surrounding the brain provides absorption.

shock

Walking is a action because it is performed under conscious control.

voluntary

Special inside muscle fibres change shape to cause contraction when stimulated.

proteins

The peripheral nervous system consists of cranial nerves and nerves.

spinal

Electrical impulses in nerves are initiated by a reaction at the receptor tip.

chemical

Automatic constriction of the pupil in bright light is an example of a action.

reflex

Nervous tissue is made up of an organised network of cells called .

neurons