The nervous system
- Created by: katiemint2
- Created on: 04-06-14 21:22
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- The Nervous System
- Response
- Effecter organ (muscle or gland)
- Motor neurone
- CNS (relay neurone)
- Sensory neurone
- Sensory receptor
- Stimulus
- Sound of starting pistol
- Sound receptor in ear
- Stimulus
- Sensory neurone
- Sensory receptor
- Processes information
- Sensory neurone
- Motor neurone
- CNS (relay neurone)
- Muscle in feet
- Motor neurone
- Will start running
- Effecter organ (muscle or gland)
- Sense organs
- Nose
- Smell, chemical
- Light
- Receptors
- Smell, chemical
- Light
- Receptors
- Receptors
- Light
- Smell, chemical
- Receptors
- Light
- Smell, chemical
- Ears
- Sound, balance
- Sound, balance
- Tongue
- Taste, chemical
- Taste, chemical
- Eyes
- Skin
- Touch, pressure, pain, temp
- Touch, pressure, pain, temp
- Nose
- Neurones
- Relay neurone the nerve cell that caries signals from the sensory neurone to the motor neurone (In the CNS!)
- Sensory neurones carry signals as electrical impulses from the receptors in sense organs to the CNS
- Motor neurone the nerve cell that carries signals from the CNS to the effector muscles or glands
- Effectors these are muscles and glands they respond in different ways. Muscles contract in response where as glands secrete hormones
- Reflexes
- Reflexes bypasses the conscience brain completely when a quick response is essential
- Help prevent injury, automatic responses to certain stimuli
- For example if someone shines a bright light in your eye your pupils automatically get smaller to reduce the amount of light let in, also if you get a shock your body releases the hormone adrenaline automatically
- The passage of information in a reflex (from receptor to effector) is called a reflex arc.
- Synapses
- Synapses connect neurones
- The connection between two neurones is called a synapse
- The nerve cell is transferred by chemicals which move across the gap
- These chemicals then set off a new electrical signal in the next neurone
- The nerve cell is transferred by chemicals which move across the gap
- The connection between two neurones is called a synapse
- Synapses connect neurones
- Reflex arc
- Stimulus
- Receptor
- Sensory neurone
- Relay neurone
- Motor neurone
- Effector
- Response
- Muscle contracts
- Muscle
- Response
- Impulses travels along a motor neurone via a synapse
- Effector
- Impulses are passed along the relay neurone via a synapse
- Motor neurone
- Impulse travel along the sensory neurone
- Relay neurone
- Stimulation of pain receptor
- Sensory neurone
- Bee stings finger
- Receptor
- Stimulus
- Response
- Sensory neurone
- Relay neurone
- Motor neurone
- Effector
- Response
- Muscle contracts
- Muscle
- Response
- Impulses travels along a motor neurone via a synapse
- Effector
- Impulses are passed along the relay neurone via a synapse
- Motor neurone
- Impulse travel along the sensory neurone
- Relay neurone
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