Biology keywords 2.

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  • Created by: Gbarritt2
  • Created on: 02-02-16 16:12
Stimulus.
Change in the environment, such as a temperature change, that you respond to.
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Central Nervous System (CNS).
The brain and spinal cord.
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Receptor.
Cell or sense organ that detects stimuli.
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Peripheral nervous system (PNS).
Nerves carrying information from sense organs in the body to the CNS, and from the CNS to the effectors.
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Neurone.
Cell specialised to carry electrical impulses. Nerve cells.
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Reflex Action.
Fast automatic response of the body to a potentially dangerous stimulus, coordinated by the spinal cord.
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Synapse.
Small gap between neurones, or between a neurone and effector.
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Effector.
Organ such as gland or muscle that responds to a stimuli.
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Hormone.
Chemical made by a gland and carried in the blood to its target organ(s).
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Secrete.
Produce a hormone in special cells of a gland.
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Gland.
Structure inside an organism that makes a useful substance, often a hormone.
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Target organ.
Organ or part of the body that responds to a particular hormone.
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Ion.
Charged particle, e.g. Na+, K+, Mg+.
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Sex Hormones.
Hormones produced in the sex organs (ovaries and testes).
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Oestrogen.
A female sex hormone involved in regulating the menstrual cycle.
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Progesterone.
A female sex hormone involved in maintaining the uterus lining.
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FSH (follicle stimulating hormone).
A female sex hormone, involved in making eggs mature in the ovaries.
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LH (luteinizing hormone).
A female sex hormone involved in triggering ovulation.
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In vitro fertilization (IVF).
Fertilization carried out outside the body, so the egg and sperm join in a glass dish to form an embryo that is injected back into the woman's uterus.
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Other cards in this set

Card 2

Front

The brain and spinal cord.

Back

Central Nervous System (CNS).

Card 3

Front

Cell or sense organ that detects stimuli.

Back

Preview of the back of card 3

Card 4

Front

Nerves carrying information from sense organs in the body to the CNS, and from the CNS to the effectors.

Back

Preview of the back of card 4

Card 5

Front

Cell specialised to carry electrical impulses. Nerve cells.

Back

Preview of the back of card 5
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