the brain

Question 1

what are neurons and what is their composition?

Answer 1

neurons are a type of cell that makes up the nervous system. they are made up of cell bodies, dendrites, and an axon

Question 2

what is a synapse?

Answer 2

a small gap between neurons in which neurotransmitters are released, permitting signaling between neurons

Question 3

what is an action potential?

Answer 3

a sudden change in the electrical properties of the neuron membrane of the axon

Question 4

what is the difference between white and grey matter?

Answer 4

neurons make up both grey and white matter. grey matter is made up of the cell bodies while white matter consists of myelinated axons and glia

Question 5

where is the corpus callosum and what does it do?

Answer 5

the corpus callosum joins the two brain hemispheres and acts as a commissure or a white matter tract connecting two brain regions

Question 6

what are gyri and sulci?

Answer 6

gyri are the raised surfaces of the cerebral cortex and sulci are the dips or folds

Question 7

what are the lobes of the brain?

Answer 7

frontal, temporal, parietal, and occipital