Q. System of the body which coordinates and controls its activity is known as___________ Organ systemMuscular systemNervous tissueNervous system Answer: Nervous system

Q. Which of the following is NOT the component of the PNS? Elastic connective tissueCranial nervesSpinal nervesGanglia Answer: Elastic connective tissue

Q. Name the basic structural and functional unit of the nervous system. NeurogliaGlial cellsNeuronsPerikaryon Answer: Neurons

Q. What is the speed of nerve impulse? 60 m/s0.5 – 130 m/s10-30 m/s50 -150 m/s Answer: 0.5 – 130 m/s

Q. What are Nissl bodies? Golgi bodiesLysosomesCluster of rough endoplasmic reticulumMitochondria Answer: Cluster of rough endoplasmic reticulum

Q. Which of the following is NOT found in axon? Endoplasmic reticulumNeurofibrilsMitochondriaMicrotubules Answer: Endoplasmic reticulum

Q. In our body involuntary actions are controlled by: Medulla in HindbrainMedulla in ForebrainMedulla in Spinal CordMedulla in Midbrain Answer: Medulla in Hindbrain

Q. Name the multipolar neuron which is located entirely within the central nervous system. Motor neuronEfferent neuronAfferent neuronInterneuron Answer: Interneuron

Q. Out of the following, which one does not affect the speed of conduction of nerve impulse. No. of gangliaMyelin sheathAxon diameterTemperature Answer: No. of ganglia

Q. Nervous System consists of BrainSpinal CordNervesAll the above Answer: All the above