Electrical And Chemical Signals Science Keywords

Front 1

Accommodation

Back 1

Changes in the thickness of the lens in the eye to focus on near and far objects

Hint 1

Changes thickness lens eye focus near and far

Front 2

Artificial insemination

Back 2

Insertion of sperm from a donor into a woman to fertilise her egg

Hint 2

Insertion sperm donor into woman fertilise egg

Front 3

Bacteria

Back 3

A type of microorganism. Most are useful, some cause disease

Hint 3

Microorganism useful disease

Front 4

Brain

Back 4

An organ that coordinates the actions of your body

Hint 4

Organ coordinates actions body

Front 5

Brain tumour

Back 5

A mass of unnecessary cells growing inside the skull

Hint 5

Mass unnecessary cells inside skull

Front 6

Central nervous system (CNS)

Back 6

The brain and spinal cord

Front 7

Cones

Back 7

Light-receptor cells in the retina of the eye that detect colour

Hint 7

Light-receptor retina detect colour

Front 8

Contraception

Back 8

A method of preventing pregnancy

Hint 8

Method of preventing...

Front 9

Contract

Back 9

The shortening of muscles cells to make the muscle shorter

Hint 9

Shortening muscle cells, muscle shorten

Front 10

Cornea

Back 10

The curved outer surface of the eye that focuses most of the light on the retina

Hint 10

Curved outer surface focuses light retina

Front 11

Diabetes

Back 11

A disease where your body is unable to control the level of sugar in the blood

Hint 11

Disease body unable control sugar level blood

Front 12

Effector

Back 12

Muscles that contract in response to impulses from the nervous system

Hint 12

Muscles contract response impulses nervous system

Front 13

Electrical impulse

Back 13

A signal carried by the nerves in your body

Hint 13

Signal carried by nerves

Front 14

Endocrine system

Back 14

A system of glands in the body that make hormones

Hint 14

System glands make hormones

Front 15

Epilepsy

Back 15

A sudden burst of excess electrical activity in the brain causing a seizure

Hint 15

Sudden burst excess electrical activity brain seizure

Front 16

Gland

Back 16

An organ that produces a hormone

Hint 16

Organ produces hormone

Front 17

Glucose

Back 17

A simple sugar, a type of carbohydrate

Hint 17

Simple sugar carbohydrate

Front 18

Grand mal

Back 18

A form of epilepsy where the person loses consciousness and makes uncontrolled jerky movements

Hint 18

Epilepsy loses consciousness uncontrolled jerky movements

Front 19

Hormone

Back 19

A chemical message produced by a gland to coordinate the body

Hint 19

Chemical message produced gland coordinate body

Front 20

Infertility

Back 20

Where a couple are unable to have children. May be caused by blocked oviducts or not making enough sperms

Hint 20

Couple unable children, blocked oviducts not enough sperm

Front 21

Insulin

Back 21

A hormone made in the pancreas to control the level of sugar in the blood

Hint 21

Hormone pancreas control sugar level blood

Front 22

In-vitro fertilisation (IVF)

Back 22

The fertilisation of a human egg outside the body

Hint 22

Fertilisation human egg outside body

Front 23

Iris

Back 23

The coloured ring of muscle in the eye that controls the size of the pupil

Hint 23

Coloured ring muscle eye controls pupil size

Front 24

Iris reflex

Back 24

A reflex action that controls the amount of light entering the eye

Hint 24

Reflex controls light entering eye

Front 25

Menstrual cycle

Back 25

The cycle of preparing the uterus to receive a fertilised egg after ovulation

Hint 25

Cycle prepare uterus receive fertilised egg after ovulation

Front 26

Motor neurone

Back 26

A neurone that carries impulses to an effector

Hint 26

Neurone carries impulses to effector

Front 27

Muscle

Back 27

Tissue made from cells which can contract, allowing movements to take place

Hint 27

Tissue from cells contract allowing movements

Front 28

Nervous system

Back 28

The nerves, brain and spinal cord inside the body

Hint 28

The _____, ______ and _______ ______ inside the body

Front 29

Neurone

Back 29

A single cell that carries impulses

Hint 29

Single cell carries impulses

Front 30

Oestrogen (Pronounced: E-strogen)

Back 30

A hormone that makes the lining of the uterus thicken and stops eggs from developing

Hint 30

Hormone uterus lining thicken eggs stop developing

Front 31

Pain sensor

Back 31

A receptor cell in the skin that responds to pain

Hint 31

Receptor cell in skin respond pain

Front 32

Pancreas

Back 32

An organ in your abdomen that produces insulin

Hint 32

Organ abdomen produces insulin

Front 33

Parkinson's disease

Back 33

A disease where the brain is unable to coordinate muscle actions properly

Hint 33

Disease brain unable coordinate muscle actions

Front 34

Pathway

Back 34

The route of an impulse between a receptor and an effector

Hint 34

Route impulse between receptor effector

Front 35

Pregnancy

Back 35

The development of an embryo from fertilisation until birth

Hint 35

Development embryo fertilisation until birth

Front 36

Progesterone

Back 36

A hormone that makes the uterus lining thicken after ovulation

Hint 36

Hormone uterus lining thicken after ovulation

Front 37

Pupil

Back 37

The hole in the centre of the iris that lets light enter through to the retina

Hint 37

Hole centre iris light through to retina

Front 38

Reaction time

Back 38

The time between a sense organ detecting a stimulus and the muscles reacting

Hint 38

Time between sense organ detect stimulus muscles reacting

Front 39

Receptor

Back 39

A special cell that detects stimuli like light, sound and heat

Hint 39

Special cell detects stimuli like...

Front 40

Relay neurone

Back 40

A neurone found in the central nervous system connecting a sensory neurone and a motor neurone as part of a reflex

Hint 40

Neurone in CNS connecting sensory motor part of reflex

Front 41

Reflex (Involuntary response)

Back 41

An automatic response to a stimulus

Hint 41

Automatic response to stimulus

Front 42

Retina

Back 42

The inner lining of an eyeball containing light-detecting receptor cells called rods and cones

Hint 42

Inner lining of eyeball containing receptor cells rods cones

Front 43

Rods

Back 43

Light-detecting receptor cells in the retina of the eye that detect light intensity

Hint 43

Receptor cells retina detect light intensity

Front 44

Sense organ

Back 44

An organ that contains receptors that detect stimuli

Hint 44

Organ contains receptors detect stimuli

Front 45

Sensory neurone

Back 45

A neurone carrying impulses between a receptor cell and the central nervous system

Hint 45

Neurone carrying impulses receptor cell to CNS

Front 46

Spinal cord

Back 46

The bundle of neurones inside the backbone

Hint 46

Bundle neurones inside backbone

Front 47

Stimulus

Back 47

Something you react to

Hint 47

React

Front 48

Stroke

Back 48

A blood clot or bleeding in the brain, which causes brain cells to die

Hint 48

Blood clot bleeding in brain brain cells die

Front 49

Synapse

Back 49

The gap between two neurones

Hint 49

Gap between neurones

Front 50

Target organ

Back 50

The organ a particular hormone works on

Hint 50

Particular hormone works on

Front 51

Testosterone

Back 51

The male sex hormone

Hint 51

Male

Front 52

Tumour

Back 52

Cells growing to form an abnormal tissue

Hint 52

Cells growing abnormal tissue

Front 53

Voluntary response

Back 53

A response to a stimulus that you have to think about and can control

Hint 53

Response stimulus think control

Front 54

Iris reflex

Back 54

A reflex action that controls the amount of light entering the eye

Hint 54

Reflex controls light entering eye