Mechanoreceptors Mechanoreceptors Mechanoreceptors are stimulated by mechanical compression

Mechanoreceptors

Mechanoreceptors - Mechanoreceptors are stimulated by mechanical compression or stretch at the receptor or surrounding tissues. - Found in skin for sensing contact with physical world. -Found in bladder, blood vessels, heart, digestive organs, and teeth to sense pressure. - Mechanoreceptors are innervated by myelineated axons.

Mechanoreceptors Receptors can be classified according to the type of stimulus into: 1 -Tocuh receptors in the skin which are stimulated by light mechanical stimuli. 2 -Pressure receptors in the subcutaneous tissues which are stimulated by deep mechanical stimuli. 3 -Stretch receptors in the skeletal muscles, lungs, right atrium, urinary bladder, stomach, intestine and rectum. 4 -Joint receptors which send information about the position and movement of the joint. 5 - Auditory receptors which are stimulated by sound waves

Types of Mechanoreceptors

Types of Mechanoreceptors Type Adaptation Very rapidly Rapidly Location Nerve fiber Sensation encoded Subcutaneous A-delta Vibration , pressure Dermis (Nonhairy skin ) A-delta Vibration , light touch Hairy skin Slowly Dermis(hairy), Ligament, tendon Slowly Epidermis (nonhairy skin) Slowly Hairy skin A –delta Movement of hair A-delta Stretch, joint rotation A-delta Light touch

44 DONE BY: Fahad Tami Alzahrani