Cómo tocamos

The video explores the sense of touch, highlighting how it can produce both pleasure and pain. It explains the role of sensory receptors in the skin, which send signals to the brain and spinal cord. Different types of receptors detect pressure, temperature, and pain, with varying sensitivity across the body. The brain forms a body map based on receptor density, making some areas more sensitive than others.

What are the two extreme sensations that the sense of touch can produce?

• Heat and cold

• Light and sound

• Pleasure and intense pain

• Pressure and vibration

Which type of receptors are most numerous in the skin?

• Pressure receptors

• Heat receptors

• Cold receptors

• Pain receptors

How do pressure receptors differ from touch receptors?

• They are located on the skin's surface

• They detect changes in temperature

• They are responsible for detecting light

• They are located deeper and detect contact magnitude

Why might a small scratch on the fingertip hurt more than a cut on the leg?

• The leg is more sensitive

• The fingertip has more receptors

• The leg has more pain receptors

• The fingertip is less sensitive

How does the brain map the body's touch signals?

• Based on the size of the body parts

• Proportionally to the number of receptors

• According to the body's weight

• By the color of the skin