Biology Coordination and Control Key Words

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Nervous System
stimuli --> receptor --> sensory neuron --> coordinator (CNS) --> motor neuron --> effetor organ
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Reflex Actions
stimuli --> receptor --> sensory neuron --> coordinator (CNS) --> relay neuron --> motor neuron --> effector organ --> response
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Stimuli
A change in the environment detected by the sensory receptors
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Receptor
Special sensory cell that detects changes in the environment
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Sensory Neuron
Neuron which carries impulses from the sensory organs to the central nervous system
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Coordinator (CNS)
Central Nervous System - made up of the brain and spinal cord where information is processed
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Synapse
A gap between the relay and motor neurons, where the information is transmitted chemically, rather than electrically
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Motor Neuron
Neuron that carries impulses from the relay neuron, through the synapse, to the effector organ
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Effector Organ
A muscle or gland that responds to impulses from the nervous system
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FSH
Follicle Stimulating Hormone - Made by the Pituitary Gland - Causes egg to mature and oestorgen to be produced
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Oestrogen
Made by the Ovaries - Inhibits (stops) further production of FSH. Stimulates production or LH and stimulates the womb lining to develop, to receive the fertilised egg
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LH
Luteinising Hormone - Made by the Pituitary Gland - Stimulates the mature egg to be released from the ovary (ovulation)
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Ovulation
The release of the mature egg from the ovary in the middle of the menstrual cycle
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Contraceptive Pill
A pill containing female sex hormones (oestrogen and/ or progesterone) which is used to prevent conception
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Progesterone
Female sex hormone used in the contraceptive pill
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Phototropism
The response of a plant to light, controlled by auxin
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Gravitropism
The response of plants to gravity, controlled by auxin
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Auxin
The hormone that controls phototropism and gravitropism
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Other cards in this set

Card 2

Front

stimuli --> receptor --> sensory neuron --> coordinator (CNS) --> relay neuron --> motor neuron --> effector organ --> response

Back

Reflex Actions

Card 3

Front

A change in the environment detected by the sensory receptors

Back

Preview of the back of card 3

Card 4

Front

Special sensory cell that detects changes in the environment

Back

Preview of the back of card 4

Card 5

Front

Neuron which carries impulses from the sensory organs to the central nervous system

Back

Preview of the back of card 5
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Comments

Swallowtail

A challenging set of questions on nervous and hormonal control useful for the AQA syllabus.  Team these up with  some sample examination questions and a colourful set of notes for a good set of resources.

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