Question

Describe synapse, reflex action, stimulus and reflex arc.

Answer 1

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• ⚘Synapse::-a junction between two nerve cells, consisting of a minute gàp across which impulses paśs by diffusion of a neurotrañsmitter...
• ⚘Reflex action::-The reflex action or work is then an automatic response to a stimulus that does not receive or need conscious thought..
• ⚘stimulus::-a stimulus is a detectable change in the physical or chemical structure of an organism's internal or external environment..
• ..⚘reflex arc::-The reflex arc is a special type of neural circuit that begins with a sensory neuron at a receptor (e.g., a pain receptor in the fingertip) and ends with a motor neuron at an effector (e.g., a skeletal muscle)...

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Answer 2

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⚘Synapse::-a junction between two nerve cells, consisting of a minute gàp across which impulses paśs by diffusion of a neurotrañsmitter.

⚘Reflex action::-The reflex action or work is then an automatic response to a stimulus that does not receive or need conscious thought.

⚘stimulus::-a stimulus is a detectable change in the physical or chemical structure of an organism's internal or external environment.

⚘reflex arc::-The reflex arc is a special type of neural circuit that begins with a sensory neuron at a receptor (e.g., a pain receptor in the fingertip) and ends with a motor neuron at an effector (e.g., a skeletal muscle)