Sensory Nerves
Main sensory receptor types
1. Free Nerve endings
2. Encapsulated endings
3. Specialized receptor cell
Location of Interoceptor
Internal Organs
Mechanoreceptors
Respond to physical stimuli (Sound/Balance)
Hyperopia
farsightedness caused by a short eyeball/ where light focuses after the retina
function of Cochlea
Responsible for hearing
Function of free nerve endings
pain and temperature
Location of Proprioceptor
Near moving body part
Thermoreceptor
responds to temperature
Supporting structures around the eyes
Lacrimal gland, Extrinsic eye muscles, eyelids, eyebrows, and eyelashes
Cones
Detect Color
Function of encapsulated endings
Pressure and touch
Chemo receptor
respond to chemical receptor
Photoreceptor
Rods & Cones for vision
Phototransduction
The process by which light is converted into electrical signals in the retina.
What is static equilibrium?
The sense of balance when the body is not moving, detected by mechanoreceptors in the vestibule.
Function of Specialized Receptor Cells
Photoreceptors
Osmoreceptors
Solute Concentrations
5 basic Tastes
1. Sweet
2. Salty
3. Sour
4. Bitter
5. Umami (Savory)
What is the organ of Corti?
It is located in the cochlea and contains hair cells that transduce sound vibrations into nerve signals.
Anosmia
Loss of smell, aging or blunt trauma
Location of Exteroceptor
Near stimulus
Nociceptor
Detects pain
4 types of papillae
1. Circumvallate
2. foliate
3. filiform
4.fungiform
Rods
Sensitive to light and detect shades of gray
Myopia
Nearsightedness caused by a long eyeball, where light focuses before the retina.