Sensory System quiz Flashcards

Sensory receptors detect specific stimuli and transduce them into graded or action potentials.

Light pressure slightly deforms the nerve and opens ion channels, while heavy pressure causes greater deformation and more ion channels to open, leading to greater depolarization.

Sensory adaptation is the change in sensory response to a constant stimulus over time.

The cochlea detects sound through hair cells that respond to vibrations in the basilar membrane.

The three types of cones are blue, green, and red cones, and they detect different wavelengths of light for color vision.

The vestibular system, made up of semicircular canals, detects rotational motion and helps maintain balance.

Rods and cones in the retina transduce light signals into electrical signals that are processed by the brain.

Rods detect low levels of light and are used for night vision, while cones detect color and function best in bright light.

The tympanic membrane, or eardrum, separates the outer ear from the middle ear and transmits sound vibrations to the ossicles.

The statocyst helps marine invertebrates sense gravity through hair cells that detect the position of statoliths.

Chemoreceptors in taste buds respond to tastants, which are molecules that stimulate taste receptors for different flavors.

The round window dampens waves in the cochlea to prevent reverberation and echoing.

The fovea is a pit in the retina packed with cones, providing the clearest image by focusing light on this central point.

Hair cells in the lateral line system detect water movement through canals that allow water to stimulate the hair cells.

Rhodopsin is a light-sensitive receptor protein in rods that transduces light into electrical signals.