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The reflex arc typically consists of five components: 1. The receptor is present in the receptor organ. 2. The sensory neuron conducts the nerve impulses towards the central nervous system (CNS). The CNS is comprised of the brain and the spinal cord. 3.
Reflex arc is a neural pathway that controls the reflex action. It is a pathway followed by nerves which carry sensory from the receptor to spinal chord and then carry the response of the spinal chord to the effector organs during a reflex action.
Verified by Toppr. An action is an involuntary response to a stimulus. A reflex is made possible by a neural pathway called the reflex arc. Whenever a sense organ senses any danger (stimulus). The sensory neurons pick up signals from the sensory organ and send them to the spinal cord. It is then received by the neurons in the spinal cord.
Verified by Toppr. REFLEX ACTION: A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain. Examples include When light acts as a stimulus, the pupil of the eye ...
The reflex arc typically consists of five components: 1. The receptor is present in the receptor organ. 2. The sensory neuron conducts the nerve impulses towards the central nervous system (CNS). The CNS is comprised of the brain and the spinal cord. 3.
(A) Define reflex action with a suitable example. Also, explain the components of reflex arc with a well labelled diagram. Or (B) How is the equal genetic contribution of male and female parents ensured in the progeny?
What is a reflex arc? Draw a neat labelled diagram of the components in a reflex arc. Why do impulses flow only in one direction in a reflex arc? View Solution. Click here:point_up_2:to get an answer to your question :writing_hand:redraw complete and label the diagram given below which relates to reflex arc.
Reflex action 1. There are certain actions in our body that are spontaneous and do not need any processing by the brain. Such actions or responses are called reflex actions. 2. Reflex actions are involuntary actions that occur without conscious thought processes. 3.
The given diagram depicts the phenomenon of reflex action. It is an involuntary and instantaneous movement in response to a stimulus. This phenomenon takes place with the help of reflex arc. It acts on an impulse before that impulse reaches the brain. It involves a sensory nerve and a motor nerve with a synapse between.
Reflex action. 1. There are certain actions in our body that are spontaneous and do not need any processing by the brain. Such actions or responses are called reflex actions. 2. Reflex actions are involuntary actions that occur without conscious thought processes. 3.
