Chapter 2: Structures and Functions of Sense Organs Flashcards
What are the five receptors organs?
Eyes, ears, nose, tongue and skin.
The five receptor organs enable the body to detect?
Stimuli from the environment.
What is a Stimulus?
Anything the body can detect by means of its receptors.
The eyes are the receptor organs of?
Sight.
What does the Rods and Cones on the retina transmit?
Visual sensation of light and color to the visual cortex of the brain.
The ears are the receptor organs of?
The sense of hearing.
Hair cells in the ear pick up sound vibrations and transmit them to?
The auditory cortex of the brain.
Balance (equilibrium). is maintained by information coming from?
The inner ears and eyes that is then processed in the brain.
Where does the nose contains olfactory nerve cells?
On the roof of each nasal cavity.
What does Nerve Fibers of the olfactory receptor neurons transmit?
Nerve impulses about smells smells to the olfactory center in the brain.
The upper surface of the tongue has a tough protective covering and in some areas, small bumps known as?
Papillae.
Papillae captain taste buds, which are the sensory receptor cells for?
The sense of taste.
Information from Papillae (sensory receptors) is relayed to?
The gustatory cortex or taste cortex in the brain.
Contact receptors in the skin relay information to?
The sensory cortex in the brain that enables the sense of touch.
The perception of touch allows the body to?
Protect itself, prevent injury, feel pain, pressure and perceive hot and cold.
