the nervous system Flashcards
what are the two parts of the nervous system?
central and peripheral
the central nervous system consists of electrons in which two locations?
the brain and spinal cord
the peripheral nervous system consists of electrons that?
connect the CNS with muscles, glands and sensory receptors
what are the two divisions of the peripheral nervous system?
somatic and autonomic
what is the somatic nervous system?
voluntary behaviours
what is the autonomic nervous system?
involuntary behaviours
in the CNS, what in the brain remains relatively constant?
energy metabolism
why does blood flow increase to active brain regions?
to provide it with more oxygen
how do nerves enter and leave the CNS?
the spinal cord
what is a spinal reflex?
a stimulus that results in motor output without communication from the brain (think touching a hot stove)
what are the two kinds of nerves in the somatic nervous system?
sensory and motor nerves
what does the autonomic nervous system want to regulate/achieve?
homeostasis
what is the autonomic nervous system concerned with? (body)
respiration, digestion and circulation
what are the aspects of the autonomic division? (beyond physical body)
motivation, emotion, stress
which two subdivisions of the autonomic nervous system work together to maintain homeostasis
parasympathetic and sympathetic
