Nervous System and Senses

When the central nervous system receives an impulse and we become consciously aware of the stimulus.

• retina
• perception
• lens
• sensation

Opening in the center of the iris through which light enters the eye.

• iris
• lens
• pupil
• macula

Sensations that arise from receptors located at many points throughout the body, include: temperature, touch, vibration, pressure, pain, and awareness of body movements and position.

• sensation
• special senses
• optic nerve
• somatic sensations

Tags

NGSS.MS-LS1-8

Encapsulated receptors located in the dermis that respond to either deep pressure or high-frequency vibration.

• special senses
• Pacinian corpuscles
• pain receptors
• hair cells

A colored disk-shaped muscle that determines how much light enters the eye.

• iris
• lens
• rods
• pupil

Region of the ear consisting of an air-filled chamber within the temporal bone of the skull, bridged by the malleus, incus, and stapes.

• inner ear
• macula
• outer ear
• middle ear

One of the two types of photo-sensitive cells in the retina, contain rhodopsin.

• cones
• iris
• rhodopsin
• rods

A specialized cell or nerve ending that receives a sensory signal such as touch, smell, light, or a chemical, and ultimately generates nerve impulses in a sensory neuron.

• perception
• pain receptors
• photoreceptors
• receptor

A cluster of taste receptor cells and supporting cells that respond to dissolved food chemicals in the mouth.

• macula
• cornea
• outer ear
• taste bud

Hollow tube connecting the middle ear with the throat, important for equalizing air pressure in the middle ear with atmospheric pressure.

• cataracts
• utricle
• outer ear
• auditory tube