1.2 Flashcards
… neurones transmit nerve impulses from receptors to the CNS
sensory
… neurones transmit nerve impulses from the CNS to effectors
motor
… neurones transmit nerve impulses between sensory neurones and motor neurones
relay
All neurones have a cell body with a …
necleus
The cell body has extensions that connect to other neurones - … carry nerve impulses.
dendrites and dendrons
… carry nerve impulses away from the cell body
axons
… neurones have short dendrites and one long dendron to carry nerve impulses from receptor cells to the cell body, and one short axon that carries nerve impulses from the cell body to the CNS.
sensory
… neurones have many short dendrites that carry nerve impulses from the CNS to the cell body, and one long axon that carries nerve impulses from the cell body to effector cells.
motor
… neurones have many short dendrites that carry nerve impulses from sensory neurones to the cell body, and one axon that carries nerve impulses from the cell body to motor neurones.
relay
A stimulus is detected by receptor cells and a nerve impulse is sent along a … neurone.
sensory
When a nerve impulse reaches the end of a neurone chemicals called … take the information across the gap (called a synapse) to the next neurone, which then sends a nerve impulse.
neurotransmitters
The … processes the information, decides what to do about it and sends impulses along motor neurones to an effector.
CNS
Sensory receptors convert the energy of a stimulus into electrical energy. They act as … - something that converts one form of energy into another.
transducers
When a nervous system receptor is in its resting state, there’s a difference in charge between the inside and outside of the cell - the inside is … charged relative to the outside.
negatively
When the NS is at resting state, there is a voltage across the membrane, also known as … difference.
potential
