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Leaving Certificate Biology Nervous System 2 iQuiz FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on Enable this content SECOND Press the F5 Key to Begin, Then click on this Blue Box Which of the following structures of a reflex arc can be stimulated to start a reflex action? Receptor Motor neuron Effector Sensory neuron Which of the following structures of a reflex arc transmits impulses toward the central nervous system? Receptor Effector Motor neuron Sensory neuron Which of the following is not a receptor? Ears Kidney Nose Eyes The main conducting fibre of a nerve cell is called … A dendrite The axon A synapse A cell body Which of the following structures of a reflex arc transmits impulses from the central nervous system? Receptor Effector Sensory neuron Motor neuron Sense organs are connected to the spinal cord by … A motor neuron A sensory neuron An effector neuron A Schwann cell Which of the following structures of a reflex arc is a muscle or a gland? Motor neuron Receptor Effector Sensory neuron The small gap between neurons is called … Plexus Synapse Ganglion Motor end plate A mass of nerve cells is called … A ganglion A nerve fibre The dura mater A neuron The pathway of a reflex arc involves the following structures: 1 – sense organ; 2 – spinal cord; 3 – motor neuron; 4 – muscle; 5 – sensory neurons. The correct sequence of events is … 1-5-2-4-3 1-4-3-2-5 1-5-2-3-4 1-2-3-5-4 Nerve cells or neurons that bring messages to muscles are called … Interneurons Motor neurons Afferent neurons Sensory neurons Muscle coordination is controlled by the … Spinal cord Corpus callosum Medulla oblongata Cerebellum The rate of breathing is controlled by the … Cerebrum Medulla oblongata Intercostal muscles Diaphragm The spinal cord serves as a centre for … Synapses Subconscious thought Reflex actions Auxins The control of the size of the pupil in the eye is … A conditioned reflex A reflex action A voluntary action A tropism Nervous System 2 iQuiz How did you do? Click this Blue Box to find out