test 2 ch 9 Flashcards
what do motor neurons effect?
cardiac muscle, smooth muscle, glands (all involuntary)
neuron located in the peripheral nervous system whose cell body is located in midbrain or hindbrain or lateral horn of thoracic, lumbar, or sacral segments of spinal cord
it synapses with the other neuron in the PNS in autonomic ganglion
preganglionic neuron
neuron located in the peripheral nervous system whose cell body is in the autonomic ganglion
it terminates with effector (cardiac muscle, smooth muscle, or glands)
postganglionic neuron
t or f: sensory neurons carry info from viscera to CNS
true
how many neurons does the somatic motor have in the PNS
one (lower motor neuron)
how many neurons does the autonomic motor have in the PNS
two (preganglionic and postganglionic)
what are the effectors of the somatic motor
skeletal muscle (voluntary)
what are the effectors of the autonomic motor
smooth muscle, cardiac muscle, glands
the neurotransmitter involved with the somatic motor
ACh only
the neurotransmitters involved with the autonomic motor
preganglionic: ACh, postganglionic: Ach or NE
areas of the brain involved in the autonomic nervous system that regulate emotions and personality
frontal and temporal lobes
area of the brain involved in the autonomic nervous system that regulation motion sickness nausea
cerebellum
system involved in the autonomic nervous system that regulate autonomic responses during emotional states (blushing, cold sweating, racing heart rate)
limbic system
area of the brain involved in the autonomic nervous system that regulated center, body temperature, hunger, thirst, and pituitary gland secretions
hypothalamus
area of the brain involved in the autonomic nervous system that is the reflex control, controls cardiovascular, pulmonary, urinary, reproductive, and digestive functions
medulla oblongata
organs that only have ________ innervation are adrenal medulla, arrector pili muscles in skin, sweat glands in skin, and most blood vessels
sympathetic innervation
organs that only have ________ innervation are ciliary muscles and lacrimal gland of eye
parasympathetic innervation
what is the parasympathetic function of the eye
constricts pupil (contraction of circular muscles of iris
what is the parasympathetic function of the heart
reduces hearth rate
what is the parasympathetic function of the digestive organs
promotes digestion
what is the parasympathetic function of the salivary glands
salivary secretion
what is the parasympathetic function of the reproductive organs
erection
what is the parasympathetic function of the bladder
contracting during urination
name all antagonistic organs
eye, heart, digestive organs
