What is a reflex circuit?
the nervous connections between RECEPTOR and EFFECTOR that result in a simple response being elicited by a specific stimulus (a reflex action), such as a knee jerk without the involvement of the brain.
What is reflex in physics?
A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain. The reflex is then an automatic response to a stimulus that does not receive or need conscious thought.
What is a reflex simple definition?
A reflex is an involuntary (say: in-VAHL-un-ter-ee), or automatic, action that your body does in response to something — without you even having to think about it. You don’t decide to kick your leg, it just kicks. There are many types of reflexes and every healthy person has them.
What is reflex arc short answer?
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).
What is reflex arc Brainly?
A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.
What is reflex arc with example?
Reflex arcs The nerve pathway followed by a reflex action is called a reflex arc . For example, a simple reflex arc happens if we accidentally touch something hot. Receptor in the skin detects a stimulus (the change in temperature).
What is reflex explain with the help of example?
(a) Reflex action is a rapid and automatic response to a stimulus. It is not under the voluntary control of the brain. For example, if we unknowingly touch a hot plate, we immediately move our hand away from it. (b) The path travelled by an impulse during a reflex action is called a reflex arc.
What is an example of a reflex?
A reflex is an automatic and involuntary action of an organ or muscle in response to a stimulus. Examples of reflexes include the kick of the lower leg when the anterior knee is tapped, pupil constriction in response to bright light, and shivering to generate heat in response to cold temperature.
What is reflex action for class 10th?
A reflex action is an automatic (involuntary) and quick reaction to a stimulus that protects the body from potentially dangerous situations like touching something hot.
What is reflex explain with the help of an example?
What is reflex arc Class 10 Brainly?
Answer: The neural pathways that makes reflex actions possible are called reflex arcs. Explanation: Reflex actions are the involuntary movements that occur as responses to stimulus. All impulses do not reach brain.
What is reflex action and Arc?
Answers: A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. Reflex actions happen through the reflex arc, which is a neural pathway that controls the reflexes. The receptor here is the sense organ that senses danger.
What is the reflex arc circuit?
reflex arcthe circuit traveled by impulses producing a reflex action: receptor organ, afferent nerve, nerve center, efferent nerve, effector organ in a muscle; see also reflex. Three-neuron reflex arc. From Dorland’s, 2000.
What is a reflex?
A reflex is the immediate response of skeletal muscles and organs in the body when a stimulus is introduced. Learn more about the definition of a reflex and the common types of reflexes through examples. Updated: 09/24/2021 Have you ever burnt yourself on a stove? What happened when you put your hand on the stove when it was hot?
What is the difference between motor and reflex arcs?
The motor neurons connect with muscles in your arms, causing them to contract and quickly withdraw your hand from the painful stimuli. Reflex arcs are neural circuits that do not involve the brain. Receptors are activated by environmental stimuli and activate sensory neurons that connect to interneurons in your spinal cord.
What is an example of a reflex action?
Common Reflexes and Examples. The stretch reflex is one of the simplest reflexes and is monosynaptic. It contracts a muscle that is being stretched and contributes to balance and coordination. A deep tendon reflex is an example of a stretch reflex.