HSCI final exam Questions with Complete Solutions (Latest 2025) Functions of the nervous system - Correct Answers ✅sensory input, integration, motor outputq All organs can communicate becuase of the - Correct Answers ✅Nervous system Nervous system is jsut - Correct Answers ✅Feedback loop Control center of the feedback loop - Correct Answers ✅Gets info from teh senses and the nervous system sends out what shoudl be done to the effector Central nervous system is made of - Correct Answers ✅Brain and spinal cord Peripheral nervous system is made of - Correct Answers ✅Nerves Central nervous system function - Correct Answers ✅Interprets info and sends out output Peripahrel system function - Correct Answers ✅Carry signals to and from CNS 1 / 4
HSCI final exam Questions with Complete Solutions (Latest 2025) Peripheral nervous system is divided into - Correct Answers ✅Sensory or motor Sensory division does what - Correct Answers ✅Gathers information about the environment and carries it to CNS Two types of sensory PNS, and what each is - Correct Answers ✅Somatic and visceral Somatic is concious — like smell, skin, skeletal muscle, joints, Visceral is unconscious — heart, lungs, GI Motor division of PNS - Correct Answers ✅Transmits impulses from the CNS to effector organs (muscles and glands) Motor division divided into, and what are the differences - Correct Answers ✅Somatic — conscious/ voluntarily controlled — skeletal muscle Visceral or Autonomic (ANS)— involuntary like GI tract, heart, lungs Order of signaling - Correct Answers ✅Sensory division like the skin, to the CNS, signal to the motor division (skeletal muscle) — somatic example 2 / 4
HSCI final exam Questions with Complete Solutions (Latest 2025) Example of visceral signaling - Correct Answers ✅Stomach does something that send signal to brain, brain send signal to the smooth muscle in stomach Two main cells making up nervous tissue - Correct Answers ✅Neurons and nueroglia Neuron characteristics - Correct Answers ✅excitability— electrical change in responds to stimuli conductivity- electrical changes along the whole plasma membrane secretion— neroutrasmitters extreme longevity— they never die amitotic neurotransmitters are ______ and two types are______ - Correct Answers ✅Chemical hormones —- excitable (make smth happen) and inhibitory (prevent smth from happening) The nureons you are born with _____ which is. Good becuase _____ - Correct Answers ✅Stay for your life — they dont divide and make more Types of stimuli that excites nureons - Correct Answers ✅Hormones, chemical or mechanical 3 / 4
HSCI final exam Questions with Complete Solutions (Latest 2025) Two types of electrical changes of plasma membrane - Correct Answers ✅Action potential or local potential Parts of a neurons - Correct Answers ✅cell body, dendrites, axon Cell body - Correct Answers ✅Largest part of a typical neuron; contains the nucleus and much of the cytoplasm Dendrites - Correct Answers ✅Branchlike — receive information Axon - Correct Answers ✅A threadlike extension of a neuron that carries nerve impulses away from the cell body.What generates action potential in the neuron - Correct Answers ✅Axon Axon hillock - Correct Answers ✅Where the cell body narrows— between the body and the axon Axon collaterals - Correct Answers ✅Branch comin off of the main axon
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