BIO 253 - EXAM 2 ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

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BIO 253 - EXAM 2 ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Nervous system - Answer -- Sensory = impulse to CNS - Motor = impulse away from CNS - Integration = interpret impulse Central (CNS) - Answer -- Brain - Spinal cord - Controls sensation, perception, movement, thinking Peripheral (PNS) - Answer -- Cranial nerves - Spinal nerves - Ganglia - Connects CNS to the rest of the body Cells of CNS - Answer -- Neurons - Neuroglia Neurons - Answer -- CNS - Functional cells - Respond quickly to changes - Conduct electrical impulses via neurotransmitters Parts of neuron - Answer -- Cell body - Axon Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com - Dendrites Axon hillock - Answer -- Cone shaped - Impulse begins Synaptic knob - Answer -Located at the end of axon that secretes/stores neurotransmitter Neuroglia - Answer -- CNS - Supporting cells - Protect, support, insulate, nourish neurons Reflex arc - Answer -- Receptor - Sensory neuron - Interneuron - Motor neuron - Effector Where are receptors of the reflex arc located? - Answer -- Skin - Every part of the body What do sensory neurons do? - Answer -Carry impulses to spinal cord What do interneurons do? - Answer -Connect sensory & motor neurons Somatic (SNS) - Answer -- PNS - Voluntary, sensory, motor - Skeletal muscle, skin Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com