Biology 30 – Nervous System Practice Exam

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• Which small brain region above the pons integrates sensory information and relays it upward?
• Which term describes the protective coverings of the brain and spinal cord?
• Which statement accurately describes the roles of astrocytes, oligodendrocytes, and microglia in the CNS?
• Nerves that run up and down the length of the back and transmit most messages between the body and brain.
• How is cerebrospinal fluid produced and circulated, and why is it important for homeostasis?
• Which two structures are central to the limbic system and play key roles in emotion and memory?
• Which statement correctly describes the protective role of the meninges?
• Which structure contains the cell bodies of the somatic motor neurons that innervate the skeletal muscles?
• Which hindbrain structure is primarily responsible for coordinating movement and balance?
• Which brain structure is primarily responsible for forming and storing explicit memories and supporting learning?
• What is a common aging-related change in reflexes?
• Which brain region is described as the largest and most complex region containing the thalamus, hypothalamus, limbic system, and cerebrum?
• Which term denotes the nervous system that includes the brain and spinal cord?
• Myasthenia gravis is characterized by autoantibodies against which component at the neuromuscular junction?
• Which component maintains the resting membrane potential by establishing ion gradients?
• Which gland is the master regulator of hormonal output, affecting growth, reproduction, and stress responses?
• Which system consists of the brain and spinal cord?
• Which component provides insulation and speeds conduction along the axon?
• Which limbic structure is essential for memory formation, especially spatial memory?
• Which statement best describes an action potential in neurons?
• What is a key difference between graded potentials and action potentials in neurons?
• Which brain region serves as the base of the brainstem and controls vital autonomic functions?
• What is the typical resting membrane potential of a neuron?
• What is the term for the jumping conduction of action potentials from one node to the next along myelinated fibers?
• Which statement differentiates nervous system signaling from endocrine signaling?
• The brain region that links the nervous and endocrine systems by regulating homeostatic functions and pituitary hormone release is the:
• What best describes graded potentials and action potentials in neurons?
• What is the purpose of dermatomal testing in neuro exams?
• Which gland acts as the master regulator of the endocrine system, influencing growth and metabolism?
• The process during the action potential when sodium is rushing into the cell causing the interior to become more positive.
• Compare electrical and chemical synapses in terms of speed, directionality, and modulation.
• What fatty tissue covers the axon of some neurons to speed impulses?
• How do reflexes adapt with exercise or aging in neural conduction and muscle properties?
• Unstimulated neuron is polarized, having more electrical charge outside than inside. Established by maintaining excess Na+ ions on the outside and excess K+ ions on the inside.
• Which neurotransmitter is primarily modulatory and acts via various receptors in the CNS, including serotonergic receptors?
• Which neurotransmitter is excitatory at the neuromuscular junction and acts on nicotinic receptors?
• Which statement about Parkinson's disease best describes its pathology and motor symptoms?
• The base of the brainstem; controls heartbeat and breathing
• Which part of a neuron is specialized to receive information?
• A neuron's reaction of either firing (with a full-strength response) or not firing.
• The master endocrine regulator that influences growth and other glands is the:
• Which statement about circadian influences on nervous system function is correct?
• What is synaptic summation and the differences between spatial and temporal summation?
• Which cells in the nervous system provide support, nourishment, and protection for neurons?
• Which statement best describes endocrine versus nervous system communication across the body?
• Which subdivision enables voluntary actions by controlling skeletal muscles?
• Which statement best describes sensory adaptation and receptor specificity?
• Which statement about cerebrospinal fluid (CSF) production and circulation is accurate?
• Which of the following is a hallmark of Alzheimer's disease pathology?
• What structure serves as the main conduit for information between the brain and the body within the central nervous system?
• Which structure is essential for coordination and balance?
• What is a cranial nerve? Name three major cranial nerves and their primary functions.
• What is a signal to which an organism responds?
• Which system returns the body to resting state after activation?
• What state do photoreceptors enter in response to light?
• Which cell type is primarily responsible for forming the blood-brain barrier and regulating the extracellular environment in the CNS?
• What is the primary pathological feature of multiple sclerosis?
• Which cerebral cortex region lies at the top of the head and toward the rear, receiving sensory input for touch and body position?
• Which structure transmits impulses away from the cell body?
• Which statement about the function of cerebrospinal fluid (CSF) is correct?
• The large band of neural fibers connecting the two brain hemispheres and carrying messages between them
• Which structure is most closely associated with controlling growth and other endocrine processes?
• MS pathophysiology and symptom patterns are best described as?
• What is the difference between sensation and perception?
• Spinal reflexes differ from autonomic reflexes in terms of effectors and pathways. Which statement is correct?
• Which statement best describes the roles of A-delta and C fibers in pain transmission?
• Which structure coordinates circadian rhythms?
• Which glial cells in the peripheral nervous system form myelin?
• Which of the following is a common sign of concussion?
• A neural center in the limbic system essential for memory formation and spatial navigation is the:
• Which statement about neurotransmitter release at chemical synapses is correct?
• Which spinal cord region contains motor (efferent) neurons?
• Which lobe is primarily responsible for processing visual information?
• Which membrane is the delicate innermost layer enveloping the brain and spinal cord?
• Which statement correctly describes EPSPs and IPSPs?
• What is the blood-brain barrier and why is it important for nervous system function?
• Which term describes the outermost protective layer of the meninges?
• Which tissue contains mostly myelinated axons and supports rapid signaling between brain regions?
• Controls language expression - area of the frontal lobe, usually in the left hemisphere, that directs the muscle movements involved in speech.
• Which structure in the hypothalamus coordinates circadian rhythms?
• Which term describes a neuron that transmits information from the brain to muscles and glands?
• Damage to which brain region would most disrupt homeostatic regulation of temperature and hunger?
• Which neuron type connects sensory input to motor output within the central nervous system?
• Which region processes visual information?
• Which region coordinates information coming into and out of the spinal cord?
• Which ion is more concentrated inside the neuron at rest?
• Which of the following is an example of receptor specificity?
• Largest part of a typical neuron; contains the nucleus and much of the cytoplasm
• During neurodevelopment, what is the role of synaptic pruning?
• Control center of the neuron
• Controls language reception - a brain area involved in language comprehension and expression; usually in the left temporal lobe
• Which statement about concussion signs and the effects on neural function is correct?
• Which tissue is primarily involved in processing information and has a relatively limited regenerative capacity?
• Involved in sleep and arousal
• Myasthenia gravis is an autoimmune neuromuscular junction disorder. What is the antibody target?
• Which structure conducts impulses away from the neuron's cell body?
• Which lobe is located at the front of the brain and is associated with movement, speech, and impulsive behavior?
• The sum of all inputs coming into a single neuron.
• How do sensory receptors transduce stimuli into receptor potentials?
• Which nervous system component is primarily responsible for voluntary control of skeletal muscles?
• Outline the protective structures of the CNS (meninges, cerebrospinal fluid, ventricles) and their functions.
• Which subdivision of the PNS controls glands and internal organs automatic functions?
• Which structure carries afferent (sensory) information?
• Which statement correctly describes multiple sclerosis pathophysiology and typical symptoms?
• Which term describes the return of the cell to its resting state when potassium ions move out of the cell after depolarization?
• The description 'Unable to regenerate and responsible for processing information' best fits the properties of which tissue?
• The narrow gap that separates the presynaptic neuron from the postsynaptic cell.
• Which region is responsible for hearing and language?
• How do ascending somatosensory pathways cross, and which tract decussates at the medullary pyramids?
• Which statement best describes the serotonergic system in psychotropic drug action?
• In saltatory conduction, which statement is true?
• Which brain region relays sensory information to the cortex and transmits replies to cerebellum and medulla?
• Describe neuroplasticity with a focus on synaptic pruning, long-term potentiation (LTP), and long-term depression (LTD) and their roles in learning.
• Outline the steps of chemical synaptic transmission from arrival to clearance.
• Which statement best describes how exercise affects neural conduction and how aging can influence reflexes?
• Concussion can impair neural function by disrupting which processes?
• Describe the major arterial blood supply to the brain and the significance of the Circle of Willis.
• Which fiber type transmits fast, sharp pain signals?
• Which language area is located in the left frontal lobe and directs speech muscle movements?
• What is the all-or-none principle in action potentials?
• Damage to which structure would disrupt the regulation of temperature, hunger, and thirst?
• Which tract crosses near the entry to the spinal cord to convey pain and temperature information?
• Which neurotransmitter system and brain region are most implicated in the motor symptoms of Parkinson's disease?
• Which term refers to the nerves that connect the CNS to the rest of the body?
• Which neurons communicate internally within the brain and spinal cord that intervene between sensory inputs and motor outputs?
• Which brain region is primarily involved in converting short-term memories to long-term memory?
• Alzheimer's disease neuropathology includes which features?
• Which pathway decussates at the medullary pyramids?
• What best describes the function of nodes of Ranvier?
• Chemicals released from the terminal buttons that inhibit the next neuron from firing.
• Compare gray matter vs white matter in the CNS and the roles of myelinated tracts.
• Which statement about spinal cord organization is true?
• Which statement best describes sensory adaptation?
• Which drug class enhances GABA_A receptor activity to exert a calming effect?
• Three protective membranes that surround the brain and spinal cord.
• Which tract carries fine touch and proprioception?
• Which statement best describes sensory adaptation?
• What is the term for a neural impulse that is a brief electrical charge traveling down an axon?
• Which neurons carry information from sensory receptors to the brain and spinal cord?
• What is an organ or cell that acts in response to a stimulus?
• Which glial cell is primarily responsible for CNS myelination?
• Which term describes the largest and most complex brain region that contains the thalamus and limbic system?
• Which cells create myelin sheaths around axons in the peripheral nervous system?
• Which feature is found at regular intervals along the axon and is key to saltatory conduction?
• Which system coordinates arousal and initiates fight or flight?
• Which region of the cerebrum is primarily involved in planning movements and higher cognitive functions?
• Deep tendon reflex testing primarily evaluates the integrity of which neural level?
• Oldest part and central core of the brain, responsible for automatic survival functions?
• Which term is used for chemicals that decrease the likelihood of firing in the next neuron?
• Which statement best describes the signs and impact of a concussion on neural function?
• Which division of the autonomic nervous system generally increases heart rate, dilates bronchi, inhibits digestion, and dilates pupils?
• Explain the organization of the spinal cord: dorsal vs ventral horns, dorsal/ventral columns, and major ascending/descending tracts (spinothalamic, dorsal column-medial lemniscus, corticospinal).
• Describe the typical EEG patterns associated with different brain states and their clinical significance.
• Which statement accurately describes temporal vs spatial summation?
• Under the all-or-none principle, what happens to the amplitude of an action potential as stimulus strength increases beyond threshold?
• Which structure carries efferent information from the spinal cord to skeletal muscles?
• Which part receives signals from other neurons?
• Which meninges are directly in contact with the brain surface?
• Which brain region integrates endocrine and autonomic functions to maintain homeostasis?
• Which neuron carries outgoing information from the brain and spinal cord to the muscles and glands?
• What is the significance of threshold for neurons?
• Which description accurately reflects myasthenia gravis and its effect on neuromuscular transmission?
• What is the term that describes the state where the neuron is polarized with the outside more positive than the inside?
• Which tissue is associated with neurons with unmyelinated axons?
• Thick, outermost layer of the meninges surrounding and protecting the brain and spinal cord.
• Area of the brain responsible for all voluntary activities of the body
• What is the primary role of the corticospinal tract in motor control?
• Parkinson's disease pathology and motor symptoms are due to what neurochemical change?
• Which description accurately summarizes Alzheimer's disease neuropathology and its memory impact?
• Which brain region helps regulate body temperature, hunger, thirst, and sexual behavior?
• Which statement correctly describes depolarization and repolarization phases?
• Where are voltage-gated sodium channels located in gaps between myelin?
• Which neurotransmitter system is targeted by SSRIs and SNRIs?
• A shift in electrical charge in a tiny area of the neuron (temporary) that can summate to trigger an action potential is best described as which?
• Which CNS glial cell helps form the blood-brain barrier and regulates ion balance?
• Which language area located in the left temporal lobe is primarily for language comprehension?
• Which function is NOT performed by astrocytes?
• Which statement differentiates nociceptive pain from neuropathic pain?
• Which lobe is associated with hearing and language, located on the side of the brain?
• Which gland is often referred to as the master gland due to its regulatory role over other endocrine glands?
• Which EEG pattern is most associated with deep, non-REM sleep?
• In multiple sclerosis, symptoms vary by lesion location; typical manifestations include which of the following?
• Which region is the largest and most complex part of the brain, including the thalamus, hypothalamus, limbic system, and cerebrum?
• Regular exercise impacts neural conduction and reflexes in which way?
• The diencephalon consists of which two primary structures?
• Which membrane is the web-like middle layer of the three meninges?
• Which tissue contains neuron cell bodies and is essential for processing information?
• How do contralateral control and decussation occur in the nervous system? Provide examples for motor and sensory pathways.
• Two lima bean-sized neural clusters in the limbic system; linked to emotion.
• Explain the clinical reflex tests used in neuro exams: dermatomal testing and deep tendon reflexes.
• Which of the following describes the protective structures of the CNS and their functions?
• What is the importance of threshold in neurons with respect to graded potentials and action potentials?
• Which statement correctly describes the memory-related neuropathology of Alzheimer's disease?
• Which limbic structure plays a key role in emotion and memory processing, aside from the main memory center?
• At the neuromuscular junction, which process terminates the signal by breaking down acetylcholine?
• Which description correctly matches spinal cord anatomy?
• The process that restores the resting membrane potential after an action potential is known as which?
• Which lobe of the cerebrum is primarily responsible for processing sensory information and perception?
• Which statement correctly distinguishes endocrine and nervous system signaling in terms of speed and duration?
• Which statement describes the Na+/K+ pump operation?
• Which tract crosses near the spinal cord entry to the opposite side?
• Which structure carries nerve impulses away from the neuron's cell body?
• What is the endpoint of a neuron where neurotransmitters are stored?
• The description 'Able to regenerate and responsible for conducting nerve impulses' best fits the properties of which tissue?
• Which statement correctly distinguishes the nervous system from the endocrine system?
• Chemicals released from the terminal buttons that excite the next neuron into firing.
• The brain's sensory control center, located on top of the brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla
• Which structure relays sensory information to the cerebral cortex?
• Which cell type forms myelin in the CNS?
• Identify a classic example of a simple reflex.
• Which sequence describes the major phases of an action potential?
• What fluid cushions and protects the CNS in the space between the meninges?
• Which drug class targets the serotonin system with selective reuptake inhibition?
• Which tissue is characterized by neurons with myelinated axons?
• Which type of transmitter would most likely promote firing of the postsynaptic neuron?
• Which statement about cranial nerves is correct?
• Which cranial nerve is primarily responsible for parasympathetic control of thoracic and abdominal organs?
• Alzheimer's disease neuropathology involves which features and their effect?
• Large hindbrain structure that controls fine motor skills.
• Which sequence correctly traces the somatosensory pathway from receptor to cortex?
• Which symptom cluster is characteristic of Parkinson's disease due to dopamine depletion in the substantia nigra?
• Threshold in neurons is the voltage that must be reached to trigger what?
• Differentiate neuropathic pain from nociceptive pain and the neural mechanisms involved.
• Which CNS glial cell serves as a resident immune cell and phagocytose debris?
• Which region above the pons relays sensory information to higher brain areas?