Sensory Receptors

Sensory Receptors

By Andrea Bey

Open Ended

How does your body know how to respond to something happening inside or outside your body?

I will be able to explain how sensory receptors respond to different types of stimuli and send messages to the brain so that one day I can understand how my body reacts and makes decisions to stay safe.

🧠 Demonstration of Learning (Student-Friendly)

I know I’m learning when I can:

• Identify different sensory receptors (receptores sensoriales)

• Explain what type of stimulus (estímulo) they respond to

• Describe how signals travel through nerve cells (células nerviosas) to the brain (cerebro)

• Use evidence from experiments to explain how my body reacts (behavior / comportamiento)

Electromagnetic stimuli refer to light. In this case, the eyes receive information through visual light.

Electromagnetic

Mechanical stimuli are those that involve physical interaction. This could be the pressure of pushing on something with the skin or the vibrations that occur on the eardrum.

Mechanical

Chemical stimuli are reactions that occur on the tongue or in the nose that the brain translates into taste or smell.

Chemical

Stimuli

• A stimulus is a change in an environment that causes a change in behavior.

• Organisms maintain stability by responding to changes, or stimuli, in their environment.

• A change is known as a response.

Internal stimuli

• Changes that happen inside of an organism that require a response.

• Hunger, thirst, sleepiness are all examples of internal stimuli

External stimuli

• An external stimuli is one that comes from outside of an organism.

• Running from danger and being drawn to a delicious taco are both responses to external stimuli.

Poll

Do plants respond to stimuli?

• Yes

• No

Poll

You feel a mosquito land on your arm. Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

What behavior might the stimulus lead to?

Poll

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

You see a flashing red light at a crosswalk. What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

What behavior might the stimulus lead to?

Poll

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

Someone taps you on the shoulder from behind. What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

What behavior might the stimulus lead to?

Poll

You touch a metal chair that’s been sitting in the sun. Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

What behavior might the stimulus lead to?

Poll

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

You jump after stepping on something sharp. What behavior might the stimulus lead to?

Poll

You get a whiff of smoke and feel alarmed.

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

What behavior might the stimulus lead to?

Poll

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

What behavior might the stimulus lead to?

Poll

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Poll

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Open Ended

What behavior might the stimulus lead to?

Poll

Which sensory receptor might be involved?

• Eyes

• Skin

• Nose

• Tongue

Poll

What type of input is it?

• Electromagnetic

• Chemical

• Mechanical

Open Ended

What behavior might the stimulus lead to?