Biology 131 Ch. 44

The conversion of an external stimulus into an internal signal in the form of action potentials along sensory neurons.

Movement of signal to the CNS.

Respond to distortion caused by pressure.

Respond to particular wavelengths of light.

Detect specific molecules.

Detect changes in temperature.

Senses harmful stimuli such as tissue injury.

Detect electric fields.

Detect magnetic fields.

organ lined with pressure receptor cells and contains small calcium rich particle that normally rests on the bottom of the organ. But if flipped or tipped the particle presses against articles that are not the bottom of the organ.

pressure receptor cells that are named for their stiff outgrowths.

Stiff outgrowths of hair cells. Are microvilli that are supported by actin filaments.

A true cilium that contains a 9+2 arrangement of microtubules.

The sensation produced by wavelike changes in air pressure called sound.

The number of pressure waves that occur in 1 second and is measured in hertz (Hz).

perceived different sound frequencies.

AKA eardrum separates outer ear from middle ear.

One of three bones in the middle ear, that vibrates against a membrane.

Membrane that stapes vibrates against and separates middle ear to inner ear.

fluid filled chamber inside inner ear contains many hair cells.

Membrane in which tissue containing hair cells sits atop of in the Cochlea.

Smaller surface that the oscillating hair cells touch as well as one another.

Usage of echos of sound (sonar) in order to navigate.

Sensory organ in fish that detects pressure changes in water,

The sense of taste.

The sense of smell.

Chemoreceptor cells that sense taste and are clustered.

Sensation that is perceived as the meaty taste.

Airborne molecules that convey information about food or the environment.

The part of the brain where olfactory signals are processed and interpreted.

Region of the olfactory bulb where specific smells are sensed.

A chemical that is secreted into the environment and that affects the behavior or physiology of the same species.

Sensory organ in the nasal cavity, sends different signals to different part of the brain.