Question

What is somatosensory, and what are the 2 major subsystems? What are the 4 different dynamic sensitivity in skin sensations?

Answer 1

Somatosensation is the group of sensory modalities associated with touch, proprioception, and interoception, including various sensations like pressure, vibration, light touch, tickle, itch, temperature, pain, proprioception, and kinesthesia. The two major subsystems of somatosensory receptors are the glabrous skin and hairy skin. The four different dynamic sensitivities in skin sensations are pressure, vibration, light touch, and pain.

Step-by-step explanation:

Somatosensation is the group of sensory modalities associated with touch, proprioception, and interoception. It includes various sensations like pressure, vibration, light touch, tickle, itch, temperature, pain, proprioception, and kinesthesia. The two major subsystems of somatosensory receptors are the glabrous skin (found on the palms of the hands and soles of the feet) and hairy skin (found on the rest of the body).

There are four different dynamic sensitivities in skin sensations:

1. Pressure: This refers to the ability to perceive pressure on the skin. For example, you can feel the weight of an object in your hand.
2. Vibration: This refers to the ability to perceive vibrations or oscillations on the skin. For example, you can feel the vibration of a cell phone.
3. Light touch: This refers to the ability to perceive gentle, non-painful touch on the skin. For example, you can feel a feather brushing against your skin.
4. Pain: This refers to the ability to perceive painful stimuli on the skin. For example, you can feel a pinprick.