Reflexes are the body’s intrinsic stimulus-response systems for maintaining homeostasis, and when performed and interpreted correctly are the most objective evidence within the neurological screen to localise the lesion to specific structures within the nervous system.

Sep 13, 2023 · Reflexes are automatic and involuntary actions the body produces in response to certain stimuli. While some reflexes can involve muscles and movement, others involve internal processes...

In biology, a reflex, or reflex action, is an involuntary, unplanned sequence or action [1] and nearly instantaneous response to a stimulus. [2][3] The simplest reflex is initiated by a stimulus, which activates an afferent nerve. The signal is then passed to a …

Reflexes include not only such simple acts as chewing, swallowing, blinking, the knee jerk, and the scratch reflex, but also stepping, standing, and mating. Built up into complex patterns of many coordinated muscular actions, reflexes form the basis of much instinctive behaviour in animals.

A list of reflexes in humans. Abdominal reflex; Accommodation reflex — coordinated changes in the vergence, lens shape and pupil size when looking at a distant object after a near object. Acoustic reflex or attenuation reflex — contraction of the stapedius and tensor tympani muscles in the middle ear in response to high sound intensities.

May 19, 2024 · Reflex action is an automatic and rapid response to a stimulus that occurs without conscious control or thought. It involves the activation of sensory neurons, interneurons, and motor neurons to produce a quick and stereotyped response, often for the purpose of self-preservation or protection.

Oct 17, 2023 · Discover the science behind reflexes, how they function, and their significance in everyday life. Dive into the neural pathways, types of reflexes, and the mechanisms that ensure swift, automatic responses for survival and protection.

Describe the following reflexes and name all components of each reflex arc: stretch reflex, (Golgi) tendon reflex, flexor (withdrawal) reflex, and crossed-extensor reflex. Reflexes can be spinal or cranial, depending on the nerves and central components that are involved.

Of the many kinds of neural activity, there is one simple kind in which a stimulus leads to an immediate action. This is reflex activity.

Reflex actions are the involuntary movement of a body part as a result of a particular stimulus. These actions are involuntary as neither any will or consciousness is required to access. Probably the best-known reflex is the pupillary light reflex. If a light is flashed near one eye, the pupils of both eyes contract.