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22 Cards in this Set
- Front
- Back
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multicellular organism
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an organism made up of many cells thats need to be able to communicate with each other.
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homeostasis
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the process of keeping your temperature, pH and concentrations of ions, glucose, water and carbon dioxide at a constant
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stimulus-response process
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stimulus - receptor - control centre - effector - response
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three types of neurons
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sensory neurons, interneurons, motor neurons
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sensory neurons
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carry the impulse generated be stimulus to cns
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interneurons
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carry the impulse through the central nervous system
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motor neurons
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take the impulse to effectors such as muscles or glands
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dendrites
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branch neurons together
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axon
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long structure in which the impulse is carried through
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myelin
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covers the axon, speeds up the conduction of the message through the neuron
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neuron process
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stimulus - dendrite - cell body - axon - dendrite - cell body - (and so on)
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synapse
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gap between neurons in which neurotransmitters are located
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full nervous system process
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stimulus - receptor - sensory neuron - interneuron - motor neuron - effector - response
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reflex actions and process
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messages does not go to the brain
process: stimulus - receptor - sensory neuron - interneuron in spinal cord -motor neuron - effector - response |
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nervous system
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the network of nerve cells and fibres which transmits nerve impulses between parts of the body.
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endocrine system
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your endocrine system is composed of endocrine glands that secrete hormones into the bloodstream. The hormones then circulate around the body and bring a response in specific target organs.
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what is the nervous system made up of?
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it is composed of the central nervous system (brain and spinal cord) and the peripheral nervous system (neurons that connect the central nervous system to the rest of the body)
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thermoregulation
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the control of body temperature
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structure of a neuron
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dendrite - cell body - axon
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response process
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stimulus - receptor - sensory neuron - interneuron - motor neuron - effector - response
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effector
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muscle or gland that responds to the message
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what do the endocrine glands produce?
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the chemical messengers that the endocrine system uses, called hormones.
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