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13 . Which neurotransmitte r plays a role in inhibiting the transmission of nerve impulses between nerve cells? A)Dopamine B)Serotonin C) GABA (Gamma -aminobutyric acid) D)Glutamate 14. Which one is a part of the central nervous system? A) Spinal cord B)Periphera I nerves C)Brainstem D) Nerve endings 15. What does the peripheral nervous system include? A) Nerves in the spinal cord B) Nerves in the brainstem C) Nerves outside the body D) Nerves that are controlled by the central nervous system 16. Which type of nerve transmission is faster; myelinatec I axons or unmyelir lated axons? A)Myelinated axons B)Unmyelinated axons 17 . Myelin, a substance that speeds up transmission between nerve cells,is produced by which type of cell? A)Neurons B)Oligodendrocytes C)Astroglia D)Microglia 18. Nerve impulses ; are generatec I by the passage of which ions through the cell membrane? A)Potassium I and chloride B)Sodium and potassium C)Calcium and magnesium D)Phosphate and sulfate 19. What basic functions does the brainstem control? A)Sensory processing and learning B)Respiratior , heart rate , and reflexes C)Thinking and memory D) Motor skills and muscle contraction 20. What type of information I does the peripheral nervous system carry? A)Subconscious thoughts B)Sensory and motor information C)Thought and decision-making processes D) Dream (contante

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13 . Which neurotransmitte r plays a role in inhibiting the transmission of nerve impulses between nerve cells? A)Dopamine B)Serotonin C) GABA (Gamma -aminobutyric acid) D)Glutamate 14. Which one is a part of the central nervous system? A) Spinal cord B)Periphera I nerves C)Brainstem D) Nerve endings 15. What does the peripheral nervous system include? A) Nerves in the spinal cord B) Nerves in the brainstem C) Nerves outside the body D) Nerves that are controlled by the central nervous system 16. Which type of nerve transmission is faster; myelinatec I axons or unmyelir lated axons? A)Myelinated axons B)Unmyelinated axons 17 . Myelin, a substance that speeds up transmission between nerve cells,is produced by which type of cell? A)Neurons B)Oligodendrocytes C)Astroglia D)Microglia 18. Nerve impulses ; are generatec I by the passage of which ions through the cell membrane? A)Potassium I and chloride B)Sodium and potassium C)Calcium and magnesium D)Phosphate and sulfate 19. What basic functions does the brainstem control? A)Sensory processing and learning B)Respiratior , heart rate , and reflexes C)Thinking and memory D) Motor skills and muscle contraction 20. What type of information I does the peripheral nervous system carry? A)Subconscious thoughts B)Sensory and motor information C)Thought and decision-making processes D) Dream (contante

13 . Which neurotransmitte r plays a role in inhibiting the transmission of nerve impulses between nerve cells? A)Dopamine B)Serotonin C) GABA (Gamma -aminobutyric acid) D)Glutamate 14. Which one is a part of the central nervous system? A) Spinal cord B)Periphera I nerves C)Brainstem D) Nerve endings 15. What does the peripheral nervous system include? A) Nerves in the spinal cord B) Nerves in the brainstem C) Nerves outside the body D) Nerves that are controlled by the central nervous system 16. Which type of nerve transmission is faster; myelinatec I axons or unmyelir lated axons? A)Myelinated axons B)Unmyelinated axons 17 . Myelin, a substance that speeds up transmission between nerve cells,is produced by which type of cell? A)Neurons B)Oligodendrocytes C)Astroglia D)Microglia 18. Nerve impulses ; are generatec I by the passage of which ions through the cell membrane? A)Potassium I and chloride B)Sodium and potassium C)Calcium and magnesium D)Phosphate and sulfate 19. What basic functions does the brainstem control? A)Sensory processing and learning B)Respiratior , heart rate , and reflexes C)Thinking and memory D) Motor skills and muscle contraction 20. What type of information I does the peripheral nervous system carry? A)Subconscious thoughts B)Sensory and motor information C)Thought and decision-making processes D) Dream (contante

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13. C) GABA (Gamma -aminobutyric acid) - GABA is the primary inhibitory neurotransmitter in the central nervous system, responsible for reducing neuronal excitability.<br /><br />14. C) Brainstem - The brainstem is a part of the central nervous system, consisting of the midbrain, pons, and medulla oblongata.<br /><br />15. D) Nerves that are controlled by the central nervous system - The peripheral nervous system includes all the nerves outside the brain and spinal cord, which are controlled by the central nervous system.<br /><br />16. A) Myelinated axons - Myelinated axons have a myelin sheath that insulates the axon, allowing for faster transmission of nerve impulses.<br /><br />17. B) Oligodendrocytes - Oligodendrocytes are glial cells in the central nervous system that produce myelin, which speeds up the transmission of nerve impulses.<br /><br />18. B) Sodium and potassium - The passage of sodium and potassium ions through the cell membrane generates nerve impulses.<br /><br />19. B) Respiration, heart rate, and reflexes - The brainstem controls basic functions such as respiration, heart rate, and reflexes.<br /><br />20. B) Sensory and motor information - The peripheral nervous system carries sensory information from the body to the central nervous system and motor information from the central nervous system to the body.
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