StudentAidUnit 15: Human Nervous System — Mcqs
12th Class Biology · Unit 15: Human Nervous System
0 of 0 answered
0 correct
MCQ1.Neurotransmitter receptors are located on;
MCQ2.Which neurotransmitter is released by all motor neurons at their synapses with skeletal muscles?
MCQ3.Which part of the nervous system prepares the body during emergency?
MCQ4.Which of these is closest to the brain tissue?
MCQ5.In meninges, the cerebrospinal fluid is present between;
- a Skull and dura mater
- b Dura mater and arachnoid
- c Arachnoid and pia mater
- d Pia mater and brain or spinal cord
MCQ6.Which is NOT a function of cerebrospinal fluid?
- a Cushions brain
- b Produces hormones
- c Transport nutrients to brain
- d Protects the spinal cord
MCQ7.During saltatory conduction, the nerve impulse jumps from one ________ to another. [Printed option (d) reads "None of Ranvier", which appears to be a transcription error for "Node of Ranvier".]
- a Axon
- b Synapse
- c Myelin sheath
- d None of Ranvier
MCQ8.In a resting neuron, which of these ions has the highest permeability?
MCQ9.If nerve impulses in a neuron 'a' are travelling faster than the impulses in neuron 'b', what might be the reason?
- a Hyperpolarization in neuron 'a'
- b Neuron 'a' is myelinated
- c There is a high concentration of sodium ions inside neuron 'a'
- d Neuron 'a' is thicker than neuron 'b'
MCQ10.Dorsal root of spinal nerve contains?
MCQ11.Which ions cause the presynaptic vesicles to fuse with the presynaptic membrane and release a neurotransmitter into the synaptic area?
MCQ12.The most common cause of dementia is;
MCQ13.Nociceptors are specialized receptors that detect:
MCQ14.Which receptor detects deep pressure and vibration?
MCQ15.Which of the following is a narcotic drug used for pain relief?
MCQ16.Withdrawal symptoms of drug abuse include:
MCQ17.Caffeine increases alertness by: