Measured in Hertz, the number of sound waves or cycles per second, determining the pitch of the sound.
What is frequency?
100
The visible part of the ear, consisting of the pinna and the auditory canal.
What is the outer ear?
100
The theory that sounds of different frequencies or pitch cause maximum activation of hair cells at certain locations along the basilar membrane.
What is place theory?
100
The sensation of taste; the process of taste.
What is gustation?
100
Measures how far apart two points must be to be to be distinguishable as two separate touches.
What is the two point threshold?
200
Measured in decibels, the magnitude or intensity of a sound wave, determining the loudness of a sound.
What is amplitude?
200
The portion of the ear containing the ossicles, which connect the eardrum to the oval window and amplify the vibrations as they travel to the inner ear.
What is the middle ear?
200
The theory that hair cell receptors vibrate the same number of times as the sounds that reach them, thereby accounting for the way variations in pitch are transmitted to the brain.
What is the frequency theory?
200
The combined sensory experience of taste, smell and touch.
What is flavor?
200
Pertaining to the sense of touch.
What is tactile?
300
A unit of measurement of the intensity or loudness of sound based on the amplitude of the sound wave.
What is a decibel?
300
The innermost portion of the ear, containing the cochlea, the vestibular sacs and the semicircular canals.
What is the inner ear?
300
The sensation of smell; the process of smell.
What is olfaction?
300
The structures that are composed of 60-100 sensory receptors for taste.
What are taste buds?
300
The theory that the pain signals transmitted by slow-firing nerve fibers can be blocked at the spinal gate if fast-firing fibers get their message to the spinal cord first, or the brain itself inhibits the transmission of the pain messages.
What is the gate-control theory?
400
The distinctive quality of a sound that distinguishes it from other sounds of the same pitch and loudness.
What is timbre?
400
The snail-shaped, fluid filled organ in the inner ear that contains the hair cells (the sound receptors).
What is the cochlea?
400
A patch of tissue at the top of each nasal cavity that contains about 10 million receptors for smell.
What is the olfactory epithelium?
400
Two matchstick-sized structures above the nasal cavities, where smell sensations first register in the brain.
What are olfactory bulbs?
400
The sense that provides information about movement and our orientation in space through sensory receptors in the semicircular canals and the vestibular sacs, which detect changes in the movement and orientation of the head.
What is vestibular sense?
500
The sensation of hearing; the process of hearing.
What is audition?
500
Sensory receptors for hearing; found in the cochlea.
What are hair cells?
500
Composed of the hammer, anvil and stirrup, it connects the eardrum to the oval window and amplifies sound approximately 22 times.
What are the ossicles?
500
These are the 4 distinct kinds of sensations of gustation.
What are sweet, sour, salty and bitter?
500
The sense that provides information about the position of body parts and about body movement, detected by sensory receptors in the joints, ligaments and muscles.