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- Which of these structures is not under direct control ofthe peripheral nervous system?a. trigeminal ganglionb. gastric plexusc. sympathetic chain gangliad. cervical plexusDuring surgery to remove a tumor from the occipital lobe ofthe left cerebrum, a surgeon must cut into the brain to reachthe tumor. List in order (starting with the covering skin) alllayers that must be “cut through” to reach the tumor.Contrast the somatic nervous system with the ANS foreach of the following:a. number of neurons between the CNS and the effectororganb. location of neuron cell bodiesc. structures each innervatesd. inhibitory or excitatory effectse. conscious or unconscious controlf. neurotransmitter(s) used
- Which primary vesicle of the embryonic nervoussystem does not differentiate into more vesicles at thesecondary stage?a. prosencephalonb. mesencephalonc. diencephalond. rhombencephalonThe ______ controls most of the autonomic nervous system functions and is considered the main integration center for the autonomic nervous system (ANS). It is located in the __________. Group of answer choices thalamus;diencephalon subcortical nuclei;basal nuclei pituitary gland;brain stem hypothalamus;diencephalonRegeneration of a severed axon has a better chance forsuccess in the PNS than in the CNS. Why is regeneration inthe CNS less likely to succeed?
- Which of the following central nervous system cellsregulate ions, regulate the uptake and/or breakdown ofsome neurotransmitters, and contribute to the formation ofthe blood-brain barrier?a. microgliab. neurogliac. oligodendrocytesd. astrocytes5) cranial nerve II, the optic nerve sends nerve impulses to the brain carrying information about the things we see. These nerve fibers most likely belong to which division of the nervous system? a) sympathetic division b) sensory(afterent) division c) parasympathetic division d)somatic nervous systemGray matter consists of... cell bodies, dendrites, and unmyelinated axons myelinated axons unmyelinated axons myelinated cell bodies, dendrites, and axons
- 32. surrounds a bundle of nerve fibers A. Neurium B. Perineurium C Epineurium D. Endoneurium E. None of the aboveParkinson disease is the result of decreased levels of theneurotransmitter dopamine in the brain. However, thesepatients can’t take dopamine in drug form because the drugcannot reach the brain. What anatomic structure preventsthe drug from reaching the brain? How could these sameanatomic structures be beneficial to an individual underdifferent circumstances?A kicker on the local football team has experienced head trauma. When attempting to kick the ball, his movements were jerkyand exaggerated. The team’s athletic trainer was convinced that the kicker had damage to his cerebellum and insisted that hebe transported to the hospital. Does the athletic trainer’s conclusion make sense? Why or why not?