Types of Senses
Sensory Receptors Part 1
Sensory Receptors Part 2
Smell & Taste
Eye Diagram
100
What is the sensory system?
CNS receives info from the internal & external environments via sensory organs, which "sense" the info because of specialized receptors
100
What are sensory receptors?
structures of the nervous system that gather info about the environment
100
This sensory receptor is stimulated by changes in light
photoreceptor
100
What is the organ of smell?
Nose
100
What is the fluid inside of the cornea called and what does it do?
aqeuous humor gives cornea its shape
200
What are the 4 receptors in special senses?
eyes, nose, ears, tastebuds
200
What receptor (and corpuscle) is stimulated when you take a hard fall after slipping on ice?
mechanoreceptor - pacinian corpuscle
200
This sensory receptor is stimulated by changes in chemical concentrations
chemoreceptor
200
What is the organ of hearing?
Ear -- inner ear -- organ of corti
200
This part of the eye acts as a magnifying glass
lens
300
What are the special senses receptors sensitive to?
light, odor, sound, taste
300
What receptor is stimulated when you jump out of a hot sauna into the snow?
thermoreceptor
300
This type of pain comes from damaged nerve endings after a limb is amputated
phantom pain
300
Organ of taste?
taste buds
300
This part of the eyeball contains light sensitive cells and detects light
Retina
400
What are the 4 receptors in somatic senses?
skin, joints, muscle, viscera (heart, stomach, etc.)
400
What receptor is stimulated when you get pinched?
nociceptor
400
While diving underwater, you notice that your breathing becomes more rapid as the levels of oxygen in your blood decrease. This response is triggered by specialized receptors that detect changes in blood gases. Which type of receptors are responsible for detecting low oxygen levels and initiating the increase in your breathing rate?
chemoreceptors - detect changes in chemical substances, such as oxygen & CO2 levels in the blood
400
What are the 5 categories of taste?
sweet
savory
salty
bitter
umami
400
What part of the eye do cows have that humans don't have?
Tapetum
500
What are the somatic sense receptors sensitive to?
touch, pressure, pain, temperature
500
What receptor (and corpuscle) is stimulated when you run a feather down your arm?
mechanoreceptor (i.e. fine touch) - meissner corpuscle
500
This type of pain may occur due to sensory impulses from two regions following a common nerve pathway to brain
referred pain
example: heart attack, but feeling pain in your left arm
500
What is static vs dynamic equilibrium?
position in space vs perception of motion
500
What fluid was used to preserve the cow eyes?
formaldehyde