BPK 105 Lecture Notes - Lecture 5: Bulbous Corpuscle, Lamellar Corpuscle, Local Anesthesia
16 Jun 2016
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Document Summary
Means for the body to receive info from environment and body. Sensation: process after a sensory receptor is stimulated. Sensory receptors respond by generating ap to the cns. General senses - contain receptors over large part of body: 2 divisions: Somatic senses: provide sensory info about body and environment. Visceral senses: provide info about internal organs; pain and pressure. Special senses: specialized structure and are localized to specific body parts: include smell, taste, sight, hearing, balance. Sensory receptors: sensory nerve endings or specialized cells that respond to stimuli by generating ap. Types of sensory receptors: mechanoreceptors: respond to mechanical stimuli (i. e. stretching, chemoreceptors: respond to chemicals (i. e. odor molecules, photoreceptors: respond to light, thermoreceptors: respond to temp, nociceptors: respond to stimuli resulting from pain sensation. General sense: contain sensory receptors all over the body that involve touch, pressure, pain, temp, vibration, itch and proprioception (sense of movement and position of body) Other general sense receptors tendons, ligaments, muscles.
