Question

in upper dermis and dermal papillae
in deep dermis
temperature sensors
detect heavy pressure
detect light pressure
located throughout dermis and into epidermis

free nerve endings (1/3)
lamellated (pacinian) corpuscles (2/3)
tactile (meissners) corpuscles (3/3)

Explanation:

Analyze receptor structures

Using the Integumentary System and Accessory Structures knowledge points, we identify the anatomical locations and physiological functions of the three cutaneous sensory receptors shown:

1. Free Nerve Endings:

• Location: Located throughout the dermis and extending into the epidermis.
• Function: Act primarily as temperature sensors (thermoreceptors) and pain receptors (nociceptors).

1. Lamellated (Pacinian) Corpuscles:

• Location: Situated deep in the dermis or subcutaneous layer.
• Function: Detect deep, heavy pressure and high-frequency vibration.

1. Tactile (Meissner's) Corpuscles:

• Location: Found in the upper dermis, specifically within the dermal papillae.
• Function: Detect light touch and light pressure.

Match descriptions to categories

We group the six draggable cards on the left into their corresponding receptor categories based on their anatomical and functional properties:

• Free Nerve Endings (1/3):
• "Temperature sensors"
• "Located throughout dermis and into epidermis"

• Lamellated (Pacinian) Corpuscles (2/3):
• "In deep dermis"
• "Detect heavy pressure"

• Tactile (Meissner's) Corpuscles (3/3):
• "In upper dermis and dermal papillae"
• "Detect light pressure"

Answer:

Receptor Category	Matched Descriptions
Lamellated (Pacinian) Corpuscles	<ul><li>In deep dermis</li><li>Detect heavy pressure</li></ul>
Tactile (Meissner's) Corpuscles	<ul><li>In upper dermis and dermal papillae</li><li>Detect light pressure</li></ul>