REFLEX ACTION | Control & Coordination | Class 10 Biology TS, AP Stateboard/CBSE
Vedantu Telugu 8,9 & 10・2 minutes read
The focus of the biology class is on reflex actions, with the spinal cord playing a crucial role in coordinating immediate responses separate from the brain. Reflex actions include both natural, innate responses like blinking at sudden light and conditioned, learned responses such as swimming after being put in water.
Insights
- Reflex actions are immediate, involuntary responses to stimuli that involve sensory neurons, relay neurons, motor neurons, and effector organs, following a sequence from stimulus reception to effector response, bypassing direct involvement of the brain.
- Reflex actions encompass natural reflex actions (innate responses like blinking at sudden light) and conditioned reflex actions (acquired through learning, such as swimming after being put in water), with the spinal cord playing a vital role in coordinating these automatic, rapid, and unconscious self-protective responses.
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Recent questions
What is the role of the spinal cord in reflex actions?
The spinal cord efficiently coordinates reflex actions by quickly transmitting information between sensory and motor neurons, bypassing the brain.
How are reflex actions defined?
Reflex actions are immediate, involuntary responses to stimuli that aid in self-protection and include actions like blinking at sudden light flashes.
What are the components of a reflex arc?
A reflex arc involves a sequence of steps including stimulus reception, sensory neuron transmission, relay neuron involvement, motor neuron activation, and effector response.
What distinguishes natural reflex actions from conditioned reflex actions?
Natural reflex actions are innate, automatic responses to stimuli like removing a hand from a hot object, while conditioned reflex actions are acquired through learning or experience.
How does the brain contribute to reflex actions?
The brain is not directly involved in reflex actions; instead, the spinal cord quickly coordinates responses by bypassing the brain and efficiently controlling bodily functions.
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