Flashcards
B6: Brain and Mind
Flashcards do conjunto (10)
- 1Central Nervous SystemReferred to as the processing centre. It consist of the brain and spinal cord. It is connected to the body by the peripheral nervous system (pns).
- 2Peripheral Nervous SystemConsists of the sensory neurons that carry the impulses from the receptors to the CNS and the motor neurons that carry impulses from the CNS to the effectors.
- 3Receptors and EffectorsForm part of the complex organs such as the muscle cells in a muscle, light receptor cells in the retina and hormone secreting cells in a gland.
- 4Muscle cellsImpulse travels along motor neurons and stop at the muscle cells (effectors). This causes the muscle cell to contract.
- 5Light receptorLens focuses light onto receptor cells in the retina. The receptor cells are then stimulated and send impulses along sensory neurons to the brain.
- 6Hormone secreting cellsImpulse travels along the motor neuron and stops at the hormone secreting cell. This triggers the release of the hormone into the bloodstream.
- 7NeuronSpecially-adapted cells that carry an electrical signal when stimulated. They are elongated to make connections between different parts of the body and have branched endings so that a single neuron can act on many other neurons.
- 8Motor NeuronsCytoplasm forms a long fibre surrounded by a cell membrane called an axon.
- 9SynapsesGaps between neurons
- 10Reflex actionFast, automatic, involuntary response to a stimulus
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- Descrição
- GCSE Science FlashCards sobre B6: Brain and Mind, criado por James R em 03-02-2015.
- Criado por
- James R · fev 2015
- Atualizado
- 19 fev 2016
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