The
Nervous System:
General and Special Senses
Introduction
General senses:
Temperature, pain, touch, pressure, vibration, and proprioception (body position)
Receptors throughout the body
Senses arrive at?
Special senses:
Smell (olfaction), taste (gustation), balance (equilibrium), hearing, and vision
More complex
Receptor field
Receptors
The General Senses
Nociceptors respond to tissue damage.
Thermoreceptors respond to change in temperature.
Mechanoreceptors are stimulated by physical distortion, contact, or pressure.
Chemoreceptors monitor the chemical composition of body fluids.
Tactile Receptors: Unencapsulated
Tactile Receptors: Encapsulated
Baroreceptors: A Mechanoreceptor
Chemoreceptors
Special Sense: Olfaction
Gustation
Equilibrium and Hearing: The Ear
The Middle Ear
The Inner Ear
The Vestibular Complex and Equilibrium
Pathways for Vestibular Sensations
The Inner Ear: Hearing
Vision: The Eye, Accessory Structures
The Eye: Sectional Anatomy:
Three Tunics
The Inner Tunic: Layers of the Retina
Eye Chambers
Visual Pathways