Scientists discover new pain-sensing organ in the skin

Scientists discover new pain-sensing organ in the skin

Assessment

Interactive Video

Science, Health Sciences, Social Studies, Biology

11th Grade - University

Hard

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The video discusses the traditional understanding of mechanical pain perception through nerve cell endings in the epidermis and introduces a new discovery by researchers at Sweden's Karolinska Institute. They found a sensory organ, the nociceptive glio-neural complex, between the skin's layers, which is sensitive to mechanical stimuli. The organ's functionality was tested by genetically modifying mice to respond to light stimulation, resulting in pain-indicative behaviors.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the traditional belief about how mechanical pain is perceived?

Through nerve cell endings with a protective layer

By temperature-sensitive nerve cells

Via a network of glial cells

Through sensitive nerve cell endings lacking a protective layer

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the newly discovered sensory organ called?

Pain receptor organ

Nociceptive neural network

Glial sensory complex

Nociceptive glio-neural complex

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of stimuli is the nociceptive glio-neural complex most sensitive to?

Cold

Mechanical stimuli like pinpricks

Chemical stimuli

Heat

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How did researchers test the functionality of the nociceptive glio-neural complex?

By applying electrical stimuli

By genetically modifying mice to respond to light

By using chemical irritants

By exposing mice to extreme temperatures

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What behavior did mice exhibit when the nociceptive glio-neural complex was stimulated by light?

Pain-indicative behaviors like lifting and licking their feet

No noticeable change

Aggressive behavior

Increased appetite