1. Define the following terms (8): reflex, involuntary, voluntary, monosynaptic,
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Question
1. Define the following terms (8): reflex, involuntary, voluntary, monosynaptic, polysynaptic, contralateral reflex, ipsilateral reflex 2. What are 3 functions of reflexes? 3. What are the S components to areflex are? . What are the effectors for somatic reflexes? 5. How many motor neurons does it take to go from the spinal cord to the effector for somatic reflexes? 6. What are the effectors for autonomic reflexes? 7 How many motor neurons does it take to go from the spinal cord to the effector for autonomic reflexes? 8. Which somatic reflexes are monosynaptic? Polysynaptic? 9 Which somatic reflexes are ipsilateral? Contralateral? 10. What type of information do spinal nerves carry? 11. Name the 2 stretch reflexes we performed in lab. 12. What spinal nerves were tested for the 2 stretch reflexes? 13. What is the name of sensory receptor that senses stretch in a muscle? l4 W s reigprcea ain wiay tis cons 15. Name the autonomic reflex we tested in lab. 16. What was the difference between the consensual response and the direct response with the autonomic reflex? 17. Be able to draw the stretch reflex pathway and label accordingly with the terms of the reflex HW. 18, Be able to draw the withdrawal reflex pathway and label accordingly with the terms of the reflex HW.Explanation / Answer
1. Reflex is involuntary and instant movement in response to stimulus. Involuntary means action done without conscious control. Voluntary means which is done willingly or with conscious. Mono synaptic reflex is a reflex which involves transmission of information from a single sensory neuron to a motor neuron across single synapse and polysynaptic reflex is with more than one synapses. Reflex which occurs on the opposite side of the body is contralateral and on the same side of the body as stimulus is ipsilateral.
2. Reflexes maintain homeostasis, helps in balance and posture, maintains eye movement.
3. Components of reflex arc are receptor, sensory neuron, integrating centre, motor neuron, effector.
4. Skeletal muscles are the effectors of somatic reflex.
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