Question

FILL IN THE BLANK. 1. Type of summation occurring when numerous different pre-synaptic neurons release neurotransmitter simultaneously onto a synapse 2. Occurs due to an increase in membrane permeability to K 3. Receptors that provide the CNS with information about body position 4. Term relating to a conscious recognition of the position of body parts with respect to one another as well as recognition of limb movement rates Large cells filled with myelin which surround the axons of somatic motor neurons 6. Each motor neuron and all the muscle fibers that it innervates 7. Term describing the number of muscle fibers innervated by a single motor neuron 8. Neurotransmitter which excitatory in the heart 9. Neurotransmitter released at the neuromuscular junction 5.

Answer 1

1- spatial summation

Note - spatial summation occur when numerous body presynaptic neuron become active to relase the neurotransmitter causing to lead to action potential of the cell.