Biology 252 Final exam review Questions and Answers

Biology 252 Final exam review Questions and Answers The sacral plexus is located in? A. CNS B. PNS C. In both the CNS and PNS D. In neither the CNS or PNS - Ans:-B. PNS Neuron cell bodies are located in? A. CNS B. PNS C. In both the CNS and PNS D. In neither the CNS or PNS - Ans:-C. In both the CNS and PNS The dorsal ramus is located in? ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/15 A. CNS B. PNS C. In both the CNS and PNS D. In neither the CNS or PNS - Ans:-B. PNS A neuron with its cell body in the dorsal root ganglion is: A. in the nucleus B. a multipolar neuron C. a mixed neuron D. could be a somatic motor neuron E. controls effectors - Ans:-D. could be a somatic motor neuron These are sensory neurons of the eye and ear. A. efferent B. unipolar C. bipolar ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/15 D. anaxonic - Ans:-C. bipolar Interneuron cell bodies are found in? A. dorsal root ganglion B. ventral gray horn C. dorsal gray horn D. lateral gray horn E. lateral white column - Ans:-C. dorsal gray horn Oligodendrocytes are glial cells of _____ matter of the CNS? a. dura b. gray c. white d. pia - Ans:-C. white Nissl bodies - Ans:-Rough endoplasmic reticulum with ribosomes that act as the site of protein synthesis in neurons. Found in CNS neuron somas of gray matter. Ependymal cells - Ans:-In contact with CSF. ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/15 Line ventricles of brain and central canal of spinal cord. Form single layer of cuboidal to columnar cells with cilia and microvilli. Modified epithelial cells. Astrocytes - Ans:-CNS cells responsible for physical support and maintaining blood brain barrier. Schwann cells - Ans:-Supporting cells of the peripheral nervous system responsible for the formation of myelin. Microglia - Ans:-Act as phagocytes, eating damaged cells and bacteria, act as the brains immune system Satellite cells - Ans:--Provide physical support to PNS neurons Diffusion of what neurons across a neuron membrane causes a de