Biology Practice: Nervous System (Mock Test 4 - Expert/Experimental)
1. In a clinical trial, a drug is found to block 'Acetylcholinesterase' (the enzyme that breaks down neurotransmitters). What would be the immediate experimental effect on the post-synaptic neuron?
2. An investigator observes a patient who can understand speech but is unable to produce coherent words. Which specific area of the cerebral cortex is likely damaged?
3. Why does 'White Matter' transmit impulses faster than 'Grey Matter' in experimental measurements?
4. If the 'Vagus Nerve' (Cranial Nerve X) is experimentally stimulated, what happens to the heart rate?
5. A lab technician performs a 'Lumbar Puncture'. The analysis shows a high count of WBCs and low glucose in the Cerebrospinal Fluid. This points to:
6. During a 'Fight or Flight' response, which change is NOT caused by the Sympathetic Nervous System?
7. A researcher uses a 'Galvanometer' to detect a nerve impulse. The impulse is essentially a wave of ________ spreading along the neurilemma.
8. In a 'Reflex Arc' experiment, if the 'Dorsal Root' of the spinal nerve is cut, what will be the result?
9. Which part of the brain coordinates the precise, smooth movements required for an expert task like 'Threading a needle'?
10. The 'Corpus Callosum' is experimentally severed in 'Split-brain' patients. This prevents communication between: