Nervous System Welcome to your Nervous System 1. The insulating sheath covering the axon is called Plasmalemma Neurilemma Dura mater Pia mater 2. Which one of the following pairs of brain part and its function is not correctly matched? Cerebrum - Memory Cerebellum - Balance of body Medulla oblongata - Controls activities on internal organs Pons - Consciousness 3. A mixed nerve is one which Carries sensations from two or more different sense organs Contains both sensory and motor fibres Has a common root but branches into two or more nerves to different organs Has two or more roots from different parts of brain 4. Reflex action is controlled by Brain Spinal cord Autonomic nervous system Peripheral nervous system 5. Which one of the following is responsible for controlling body temperature? Liver Lung Hypothalamus Spinal cord 6. Which of the following is absent in a neuron? Ribosome Centrosome Chromosome Lysosome 7. The basic structural and functional unit of brain is Nephron Nerve Spinal cord Neuron 8. The function of nervous system is to Receive stimuli Irritability Conduction of enzymes To prepare the body against reactions during emergency 9. A point of contact between two neurons is termed as Synapse Synapsis Neuro motor junction Sensory 10. Cerebellum is the part of the brain which is responsible for Interpreting sensations Conducting reflexes in the body Maintaining posture and equilibrium Controlling thinking, memory and reasoning 11. The control of reflex action is through Central Nervous system Peripheral nervous system Autonomic nervous system None of the above 12. The ventral root ganglion of the spinal cord contains cell bodies of the Motor neuron Sensory neuron Intermediate neuron Associated neuron 13. A reflex arc in man is best described as movement of stimuli from Receptor cell, sensory neuron, relay neuron, effector muscles Receptor cell, efferent nerve, relay neuron,muscles of the body Receptor cell, spinal cord, motor neuron, relay neuron Receptor cell, synapse, motor neuron, relay neuron 14. Which of the following is not a natural reflex action? Knee-jerk Blinking of eyes due to strong light Salivation at the sight of food Sneezing when any irritant enters the nose 15. Unlike thespinal cord, the brain mainly has grey matter on the ____ and white matter on the _____ outermost layer ... inner layer inner layer... outermost layer left half ... right half right half... left half 16. The presence of folds in the brain indicates a modification to circulation patterns surface area to volume ratios electro-chemical gradients sunlight exposure 17. Which portion of a neuron receives neurotransmitters from a previous neuron, signalling the need for propagation of an action potential? Dendrites Soma Axon Synaptic terminal 18. Which of the following statements about axons is true? The axon is the site of neurotransmitter production There are often numerous axons for each neuron The axon contains the cell nucleus The axon carries action potential away from the cell body of a neuron 19. Which of the following best describes the order of information processing in a neuron? Dendrite, cell body, axon, synaptic terminal Dendrite, axon, synaptic terminal, cell body Dendrite,axon,cell body, synaptic terminal Dendrite,synaptic terminal,cell body, axon 20. Neurilemma cells are also called Photoreceptors Odontoblasts Ganglions Schwann cells Time is Up!