Anatomy and Physiology for Emergency Care Chapter 10 Sensory Functions
Objectives Distinguish between the general senses and the special senses Identify the receptors for the general senses, and describe how they function Describe the receptors and processes involved in the sense of smell Discuss the receptors and processes involved in the sense of taste
Objectives Identify the parts of the eye and their functions Explain how we are able to see objects and distinguish colors Discuss how the central nervous system processes information related to vision Discuss the receptors and processes involved in the sense of equilibrium
Objectives Describe the parts of the ear and their roles in the process of hearing Describe the effects of aging on olfaction, tasting, vision, and hearing
General Senses Pain Temperature Touch, Pressure, and Position Tactile receptors Baroreceptors Proprioceptors
Tactile Receptors
Baroreceptors
General Senses Chemical Detection
General Senses Smell Olfactory pathways
General Senses Taste Taste pathways
General Senses Vision Accessory Structures of the Eye
General Senses Vision Anatomy of the Eye Fibrous tunic Vascular tunic Neural tunic Retinal organization Optic disc Chambers of the Eye Aqueous humor Lens Structure of the Lens Accommodation
Sectional Anatomy of the Eye
Optic Disc
Eye Chambers and Circulation of Aqueous Humor
Image Formation and Accommodation
Visual Abnormalities
General Senses Vision Visual Physiology Rods and cones Photoreceptor function Visual pigments
General Senses Vision The Visual Pathway
General Senses Equilibrium and Hearing Anatomy of the Ear External Ear Middle Ear Auditory Ossicles Inner Ear Receptor Function in the Inner Ear
Inner Ear
General Senses Equilibrium and Hearing Equilibrium Semicircular Ducts: Rotational Motion Vestibule: Gravity and Linear Acceleration Central Processing of Vestibular Sensations
Vestibular Complex
General Senses Hearing Cochlear Duct Hearing Process Auditory Pathways Organ of Corti Hearing Process Auditory Pathways Auditory Sensitivity
The Cochlea and Organ of Corti
Sound Reception and Hearing
Aging and the Senses Olfactory Sensitivity Gustatory Sensitivity Vision Hearing
Summary
Emergency Care Applications Chapter 10
Pain
Eye Emergencies Conjunctival Injuries Corneal Injuries Blunt Eye Trauma Penetrating Eye Trauma Chemical Injuries Ultraviolet Keratitis Acute Glaucoma
Eye Emergencies
Summary