Nervous system review
Myelinated nerve fibers appear A.Black B.Brown C.Grey D.Transparent E.White Answer: E
Grey matter: Cortex and Basal ganglia White matter: Tracts Grey matter: Horns White matter: Tracts
Which of these pairs denote the same type of neuron? A.Afferent: Motor B.Afferent: Interneuron C.Efferent: Interneuron D.Efferent: Motor E.Efferent: Sensory Answer: D
Path of Travel Sensory interneurons motor ( afferent ) ( association ) ( efferent )
A subdivision of the nervous system that regulates the activity of cardiac muscle, smooth muscle and glands is the A.Autonomic nervous system B.Central nervous system C.Peripheral nervous system D.Somatic nervous system Answer: A
The chief positive intracellular ion in a resting neuron is A.Ca +2 B.Cl -1 C.K +1 D.Na +1 E.PO 4 -3 Answer: C
Sodium Potassium Polarized Negative inside Positive outside
A) astrocyte B) ependymal cell C) microglial cell D) oligodendrocyte E) satellite cell 1.Produces myelin for CNS 2.Phagocytic 3.Found in PNS 4.Connects fibers to blood supply Answer: D Answer: C Answer: E Answer: A
A B C D E 1.Fiber (axon) 2.Epineurium 3.Perineurium 4.Fascicle 5.Endoneurium Answer: A Answer: D Answer: C Answer: E Answer: B
A B C D E 1.Pia mater3. Skull (cranium) 2. Dura mater4. Arachnoid mater Answer: E Answer: C Answer: B Answer: D
A) ganglion B) parasympathetic neuron C) postganglionic neuron D) preganglionic neuron E) sympathetic neuron 1.Cell body in CNS 2.Elicits “fight or flight” response 3.Entire cell ouside CNS; communicates with effector Answer: D Answer: E Answer: C
A) acetylcholine B) dopamine C) epinephrine D) gama-aminobutyric acid (GABA) E) serotonin 1.Connected to addiction 2.Most common autonomic and muscular 3.Controls appetite 4.Most common inhibitory
A) cardiac plexus B) celiac (solar) plexus C) pulmonary plexus D) inferior mesenteric plexus E)renal plexus 1.Innervates kidneys 2.Controls largest number of organs 3.Controls digestive functions Answer: E Answer: B Answer: D
Autonomic Plexuses Tangled networks of axons from sympathetic & parasympathetic neurons Cardiac ( heart ), pulmonary ( lungs ), celiac or solar ( liver, gall bladder, stomach, pancreas, spleen, kidneys, testes, ovaries ), superior mesenteric ( small & large intestines ), inferior mesenteric ( large intestine ), renal ( kidneys & ureters ) “ win d knoc ked out of you ”