Uci Bio 93 (Trio) Final Review Exam Brand New Actual Exam With 100- Verified Questions And Correct Solutions

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UCI BIO 93 (TRIO) FINAL REVIEW EXAM 2025-
2026 BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS


1. Neural Crest Cells - correct answer - Develop along the neural tube of
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vertebras and form various parts of the embryo. (Nerves, teeth, skull
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bones, etc)
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2. Ectoderm - correct answer - Outer layer of embryo, produces the
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epidermis of the skin, nervous and sensory systems, pituitary gland,
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jaws and teeth, and sex cells.
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3. Mesoderm - correct answer - Middle layer of the embryo, produces
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skeletal and muscular systems, reproductive systems, dermis, and
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adrenal cortex.
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4. Endoderm - correct answer - Inner layer of the embryo, produces
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digestive tract and associated organs, respiratory tract, as well as the
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thymus thyroid and parathyroid glands.
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5. Neurons - correct answer - Nerve cells that transfer information within
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the body.
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6. Chemical Signals - correct answer - Short distance signaling
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7. Electrical Signals - correct answer - Long distance signaling
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8. Central Nervous System - correct answer - Found with in the brain and
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spinal cord.
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9. Peripheral Nervous System - correct answer - Found within limbs and
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rest of body.
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10. Ganglia - correct answer - Simple clusters of neurons.
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11. Brain - correct answer - Complex organization of neurons.
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12. Information Processing - correct answer - 1. Sensory input
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(Peripheral)
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2. Integration (Central) |

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3. Motor output (Peripheral)
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13. Synapse - correct answer - a junction between an axon and another
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|cell




14. Synaptic Terminal - correct answer - Passes information across the
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|synapse in the form of chemical messengers
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15. Neurotransmitters - correct answer - Chemical Messengers. | | | | | |




16. Axon Hillock - correct answer - Point where the cell body of a neuron
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|connects to the axon. | | |




17. Presynaptic Cell - correct answer - The cell sending the message.
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18. Postsynaptic Cell - correct answer - The cell receiving the message.
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19. Gila - correct answer - Cells that nourish and insulate neuron cells.
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20. Astrocytes - correct answer - Surport neurons and form the blood-
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|brain barrier.
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21. Ependymal - correct answer - Promote circulation of cerebrospinal
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|fluid.




22. Microglia - correct answer - Prevent the nervous system from
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|microorganisms.




23. Oligodendrocytes and Schwann cells - correct answer - Form the | | | | | | | | |


|myelin sheath around axons. Only called Schwann cells if located in the
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|peripheral nervous system | |




24. Membrane Potential - correct answer - The voltage across a cell's
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|plasma membrane. |




25. Resting Potential - correct answer - The membranes potential of a
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|neuron not sending signals.
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26. Leak Potassium Channels - correct answer - Always open and helps
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|set the resting potential
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