Table of Contents
- 1 What are the important components of reflex action?
- 2 What makes a reflex action special?
- 3 What are the functions of reflex action?
- 4 What are reflex action give an example?
- 5 What is the role of the brain in reflex action?
- 6 Why is it important to know about reflex action?
- 7 Which is a pathway that controls a reflex?
What are the important components of reflex action?
The reflex arc consists of 5 components:
- sensory receptor.
- sensory neuron.
- integration center.
- motor neuron.
- effector target.
What makes a reflex action special?
A reflex action, also known as a reflex, is an involuntary and nearly instantaneous movement in response to a stimulus. When a person accidentally touches a hot object, they automatically jerk their hand away without thinking. A reflex does not require any thought input.
What are the functions of reflex action?
A reflex action is an automatic (involuntary) and rapid response to a stimulus, which minimises any damage to the body from potentially harmful conditions, such as touching something hot. Reflex actions are therefore essential to the survival of many organisms.
What is reflex action give example?
Answer : Reflex action – Sudden action in response to something in the environment is called reflex action. For example- When we touch a hot object, we withdraw our hand immediately without thinking. Closing of eyes, when bright light is focused show sudden response and do not involve any thinking.
Which is an example of reflex action?
A few examples of reflex action are: When light acts as a stimulus, the pupil of the eye changes in size. Sudden jerky withdrawal of hand or leg when pricked by a pin. Coughing or sneezing, because of irritants in the nasal passages.
What are reflex action give an example?
Reflex action is a sudden action in response to something in the environment. e.g., pulling out hand from the flame if accidently touched.
What is the role of the brain in reflex action?
Answer : There is no direct involvement of brain in reflex actions. These involuntary actions are controlled by the spinal cord and the action takes place immediately before the information is sent to the brain.
Why is it important to know about reflex action?
Reflex actions A reflex action is an automatic (involuntary) and rapid response to a stimulus, which minimises any damage to the body from potentially harmful conditions, such as touching something hot. Reflex actions are therefore essential to the survival of many organisms. Read everything about it here.
What is the function of the reflex arc?
The pathway taken by the nerve impulse to accomplish a reflex action is called the reflex arc. One may also ask, what is the function of reflex? Reflexes protect the body from harm. The process of the sensory neuron carrying the stimulus to the spinal column and brain, and then the brain sending a message to the motor neuron is called a reflex arc.
How is the reflex action related to instinct?
This action is termed as the reflex action. It has a subtle relation to instinct. A point to be thought upon is that we all have our instincts differently depending on our past experiences and understanding. A reflex is a reaction triggered by this instinct. At times, we have no prior knowledge if the pan is hot or not.
Which is a pathway that controls a reflex?
A reflex arc is a pathway that controls a reflex. Put your understanding of this concept to test by answering a few MCQs. Click ‘Start Quiz’ to begin! Congrats!