The Senses Flashcards
Detects any type of stimuli from the environment to the Central Nervous System.
Sensory Receptors
Receptors that are used primarily taste or smell.
chemoreceptors
Sensory receptors that detect light.
photoreceptors
Sensory receptors that detect changes in temperature and are primarily located in the skin.
thermoreceptors
Sensors that respond to movement such as stretch, pressure or vibration; includes hearing and equilibrium.
mechanoreceptors
Stimulus must be at an adequate intensity for it to be recognized, responded to, and generate a nerve impulse.
threshold stimulus
List the 5 special senses:
vision, hearing, equilibrium, taste, smell
List the 2 general senses:
pressure (temperature, pain, and touch), sense of position
__________ _________ occurs when a signal is prolonged and the body gets accustomed (adapted) to it.
Sensory adaptation.
_______ is the sense of taste.
Gustation
_______ ____________ are the sensory receptors of the tongue.
taste buds
Taste buds that respond to sugars
sweet
Taste buds that respond to sodium:
salty
Taste buds that respond to hydrogen ions:
sour
Taste buds that respond to organic compounds:
bitter
Taste buds that respond to savory or pungent:
Umami
List two other tastes that are sensed by taste buds:
metallic, alkalyne
Smell is also known as ________.
Olfaction
Where are the receptors for smell located?
In the epithelium of the nasal cavity’s superior region.
The general senses are also known as the senses of _______.
Survival
______ ______ are mostly in the dermis of the skin and around hair follicles.
Tactile corpuscles.
The sense of pressure relies on receptors located in the _______ tissues and near _____ and ________.
subcutaneous, joints, mucles
Temperature receptors are _____ nerve endings.
free
________ give a feeling of muscle sense.
Proprieceptors
________ is the sense of body movement.
Kinesthesia
________ is the most important protective sense.
Pain
List some types of pain:
referred, itch
