Answer:
The postsynaptic cell has many synapses with many presynaptic neurons
Explanation:
Spatial summation is a process of producing an action potential in a neuron with input from multiple presynaptic nerve cells. This process determines whether an action potential will be triggered upon reaching threshold from multiple synapses with presynaptic neurons. Summation of all inputs determines if an action potential will b generated.
Answer:
It is neural tissue that is dominated by the cell bodies of neurons, neuroglia, and unmyelinated axons, and surrounds the narrow central canal.
Explanation:
Grey matter is a part of the central nervous system that is found on the surface of the brain.
It is a neural tissues that has alot of cell bodies of neurons, neuroglia and contain more unmyelinated axons and surronds the narrow central canal.it is distinguished from white matter because it has alot of cell bodies and unmyelinated axons and also it is not as white as white matter with greyish color.
Grey matter form spinal tracts which are the pathways where signals are sent from the brain to all part of the body.
Answer: The trait is recessive because individual 17 has the trait but his parents do not
Explanation: if the trait was dominant one of his parents would have to have had it.
Cell membrane is the answr
