1 / 3

Reflex Arc

Reflex Arc. It’s a neural pathway that mediates in a reflex action.

thina
Télécharger la présentation

Reflex Arc

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Reflex Arc • It’s a neural pathway that mediates in a reflex action. • The sensory neurons pass through the spinal cord which allows reflex actions to occur relatively quickly by activating spinal motor neurons without the delay of steering signals through the brain, although the brain will receive sensory input while the reflex action occurs.

  2. Reflex Arc • Monosynaptic- When a reflex arc consists of only two neurons in an animal ,one sensory neuron and one motor neuron. It refers to the presence of a single chemical synapse. In the case of peripheral muscle reflexes brief stimulation to the muscle spindle results in contraction of the agonist muscle. • Polysynaptic- Reflex pathways, one or more interneurons connect afferent/sensory and efferent/motor signals. All but the most simple reflexes are polysynaptic, allowing processing of polysynaptic reflexes within the spinal cord.

More Related