Biology Practice: Nervous System (Mock Test 4 - Expert)
1. In a clinical examination, a patient is unable to close their eyes or smile on one side of the face. Which specific type of nerve is likely damaged?
2. Experimental Logic: If the ventral root of a spinal nerve is severed, what will be the effect on the corresponding limb?
3. Why does the brain appear gray on the outside (Cortex) but white on the inside (Medulla)?
4. A person experiences "Double Vision" and loss of balance after a head injury. Which part of the hindbrain is most likely to have sustained trauma?
5. Which of the following is an example of a "Conditioned Reflex" that involves the brain's memory centers?
6. What is the role of "Acetylcholine" in the transmission of a nerve impulse?
7. Clinical Data: A patient survives a stroke but loses the ability to speak clearly (Aphasia). Damage is localized in which cerebral lobe?
8. Why is the "Knee-jerk reflex" used by doctors to test the nervous system?
9. If a neuron is deprived of Oxygen for more than 5 minutes, it dies and cannot be replaced. This is because neurons lack:
10. How does the "Sympathetic Nervous System" respond during an emergency (Fight or Flight)?
11. A microscope slide of the Spinal Cord shows an "H-shaped" structure in the center. This area contains:
12. What is the physiological consequence of "Meningitis"?
13. Which part of the brain is the control center for "Thermo-regulation" (body temperature)?
14. Expert Observation: A nerve impulse travels only in one direction. This "One-way Valve" effect is created by:
15. Why do we experience "Referred Pain" (e.g., heart attack causing pain in the left arm)?
16. The "Vagus Nerve" is a cranial nerve that controls heart rate and digestion. Is it:
17. What happens to the "Pupillary Reflex" when a person is under deep anesthesia or in a coma?
18. The "Corpus Callosum" is absent in which group of animals?
19. In the "Reflex Arc", the neuron that connects the sensory and motor neurons within the spinal cord is the:
20. What is the metabolic byproduct that can interfere with nerve transmission if not removed by CSF?
