Sensory System and Stimuli

Dr. Biology explains stimuli and receptors, detailing how sense organs like eyes, ears, nose, tongue, and skin detect changes in the environment. These organs contain receptors that convert stimuli into electrical impulses sent through nerves. The video covers the specific stimuli each organ responds to, such as light for eyes and sound for ears, and concludes with a recap and a prompt to subscribe for more content.

What is a stimulus?

• A chemical in the body

• A change in the environment that requires a response

• A type of receptor

• A type of sense organ

Which of the following is NOT a sense organ?

• Skin

• Nose

• Heart

• Eyes

What is the primary function of receptors?

• To store energy

• To transport oxygen

• To convert stimulus energy into electrical impulses

• To produce hormones

Which sense organ is responsible for detecting light?

• Nose

• Ears

• Tongue

• Eyes

What type of stimulus do the ears primarily detect?

• Sound waves

• Light

• Chemicals

• Pressure

Which sense organ is involved in detecting chemicals in the air?

• Skin

• Eyes

• Nose

• Ears

What type of stimuli does the skin detect?

• Chemicals

• Pressure, temperature, and pain

• Light

• Sound waves

Which sense organ helps in determining body position?

• Nose

• Ears

• Tongue

• Eyes

What is the role of the tongue in the sensory system?

• Detecting sound

• Detecting chemicals for taste

• Detecting light

• Detecting pressure

What should you do to receive more educational content from Dr. Biology?

• Read a textbook

• Subscribe to Dr. Biology

• Attend a seminar

• Visit a library