Question:

How are involuntary actions and reflex actions different from each other?

Updated On: Nov 21, 2023
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Solution and Explanation

Involuntary action is the set of muscle movement which do not require thinking. But it is controlled by brain for example beating of heart beat while on the other hand, the reflex action is rapid and spontaneous action in response to any stimulus. For example closing of eyes immediately when bright light is focused.

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Concepts Used:

Human Nervous System

The human nervous system is responsible for controlling and coordinating all the activities of the human body.

The three major functions of the human nervous system are:

  1. Gathering or assembling sensory information from the body and external environment.
  2. Processing and interpreting the sensory information acquired.
  3. Conveying or transferring appropriate response to the sensory information acquired.

The nervous system is mainly divided into two, namely:

The Central Nervous System (CNS) comprises the brain and spinal cord.

  1. The brain is majorly involved in the perception and processing of sensory input. It also regulates or manages voluntary motor responses and homeostatic mechanisms.
  2. The spinal cord act as a pathway for the transmission of information between the brain and the peripheral nervous system. It also takes action on reflex actions.

The Peripheral Nervous System (PNS) comprises sensory/motor neurons and ganglion.

Nervous System

The nervous system, often known as the neural system, is a sophisticated network of neurons dedicated to the transmission of messages. As we progress up the food chain, the neurological system becomes more sophisticated.

Nervous System

Functions of Nervous System:

The nervous system's most basic job is to govern the organism's movement and to influence the environment (e.g., through pheromones). This is accomplished by transmitting signals from one cell to another, or from one body component to another. Signals that travel to muscle cells cause muscles to contract, and signals that travel to endocrine cells cause hormones to be released into the circulation or other internal fluids to cause the nervous system's output.