MS-LS1-8: Sensory Signals and Responses

Front

Sensory Receptors Noun

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[sen-suh-ree ri-sep-terz]

Back

Sensory Receptors

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Specialized cells that detect environmental information and convert it into electric signals for the nervous system to process.

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Example: This diagram shows different sensory receptors in the skin, each labeled to indicate the type of sensation they detect, like touch or temperature.

Front

Electric Impulses Noun

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[i-lek-trik im-pul-siz]

Back

Electric Impulses

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Signals that travel through nerve cells, also known as neurons, to carry information throughout the body.

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Example: The diagram shows how electric impulses travel through a neuron to muscle fibers, illustrating signal flow.

Front

Mechanoreceptors Noun

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[mek-uh-noh-ri-sep-terz]

Back

Mechanoreceptors

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Sensory receptors that respond to mechanical forces such as pressure, touch, stretch, and physical vibration.

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Example: This diagram shows different types of mechanoreceptors, like the Pacinian corpuscle and Meissner's corpuscle, located in the layers of your skin to sense pressure and touch.

Front

Thermal Receptors Noun

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[thur-muhl ri-sep-terz]

Back

Thermal Receptors

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Sensory receptors located in the skin that detect changes in temperature, signaling sensations of hot or cold.

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Example: The image shows how warm and cold receptors are distributed in the skin of the hand.

Front

Cochlea Noun

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[kok-lee-uh]

Back

Cochlea

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The spiral-shaped, fluid-filled structure in the inner ear that converts sound vibrations into nerve impulses.

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Example: The image shows how the cochlea in the inner ear converts sound vibrations into nerve impulses, with labeled parts and arrows indicating sound wave flow.

Front

Hair Cells Noun

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[hair selz]

Back

Hair Cells

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The mechanoreceptors for hearing and balance located in the inner ear that are stimulated by vibrations or movement.

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Example: Hair cells in the cochlea convert sound vibrations into signals sent to the brain.

Front

Auditory Nerve Noun

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[aw-di-tor-ee nurv]

Back

Auditory Nerve

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The nerve that carries electric messages from the hair cells in the cochlea to the brain for sound perception.

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Example: The image shows the auditory nerve connecting the cochlea to the brain, illustrating sound signal transmission.

Front

Decibels Noun

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[des-uh-belz]

Back

Decibels

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The unit of measurement used to express the intensity or loudness of a sound.

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Example: The image shows a decibel scale with everyday sounds, helping students understand sound intensity levels.

Front

Chemoreceptors Noun

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[kee-moh-ri-sep-terz]

Back

Chemoreceptors

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Sensory receptors that detect chemical substances and are responsible for the senses of taste and smell.

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Example: The image shows chemoreceptors in the olfactory system, explaining how they detect odorants for the sense of smell.

Front

Olfaction Noun

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[ol-fak-shun]

Back

Olfaction

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The scientific term for the sense of smell, which involves detecting airborne chemical molecules.

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Example: The image shows how smell molecules enter the nose and are detected by receptors, sending signals to the brain.

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