Reflex Definition Anatomy

Examples of monosynaptic reflex arcs in humans include the patellar reflex and the achilles reflex. Reflexes or reflex actions are involuntary almost instantaneous movements in response to a specific stimulus.

Knee Jerk Reflex Medical Test Britannica

The brain and is a monosynaptic response that is transmitted to the spinal cord.

Reflex definition anatomy. Any reflex whose origin is in the brain. A reflex is a rapid involuntary response to a stimulus. Most reflexes are spinal reflexes with pathways that traverse only the spinal cord.

The knee jerk is an example of the simplest type of reflex. For example the corneal reflex is the blink that occurs upon irritation of the eye. A reflex arc is the pathway traveled by the nerve impulses during a reflex.

A reflex is built into the nervous system and does not need the intervention of conscious thought to take effect. A reflex is an unlearned rapid involuntary and predictable response. A reflex arc is a neural pathway involved in a reflex.

It is not controlled by higher functioning centre ie. The reflex arc consists of 5 components. Reflex definition noting or pertaining to an involuntary response to a stimulus the nerve impulse from a receptor being transmitted inward to a nerve center that in turn transmits it outward to an effector.

When the knee is tapped the nerve that receives this stimulus sends an impulse to the spinal cord where it is relayed to a motor nerve. The other option is to use this sensory information to initiate a pre programmed reflex. Medical definition of reflex.

Our body needs to be able to respond without our cortical input. Reflex arcs that contain only two neurons a sensory and a motor neuron are considered monosynaptic. The stretch reflex is the contraction of a muscle that occurs in response to its stretch.

Patellar Reflex Wikipedia