Question

identify the structures in the diagram above.
dermis
sebaceous gland
sweat gland duct
touch/pressure receptor
arrector pili muscle
hypodermis/subcutaneous layer
sweat gland
epidermis

Explanation:

1. Dermis: This is the middle layer of skin, labeled as region B in the diagram, located between the epidermis and hypodermis.
2. Sebaceous Gland: This gland is associated with hair follicles, labeled as M, which produces oily sebum.
3. Sweat Gland Duct: This is the tube that carries sweat to the skin surface, labeled as K (the structure extending upwards from the sweat gland).
4. Touch/Pressure Receptor: The encapsulated nerve ending labeled J is a touch/pressure receptor (Meissner's corpuscle) located in the dermis.
5. Arrector Pili Muscle: This small muscle attached to hair follicles is labeled as I, which causes hair to stand up.
6. Hypodermis/Subcutaneous Layer: This is the deepest fatty layer of skin, labeled as D, below the dermis.
7. Sweat Gland: The coiled gland producing sweat is labeled as E, located deep in the dermis/hypodermis.
8. Epidermis: This is the outermost layer of skin, corresponding to the topmost region above B (not explicitly lettered in the provided diagram's labels, but it is the surface layer above the dermis (B)).

Answer:

• Dermis: B
• Sebaceous Gland: M
• Sweat Gland Duct: K
• Touch/Pressure Receptor: J
• Arrector Pili Muscle: I
• Hypodermis/Subcutaneous Layer: D
• Sweat Gland: E
• Epidermis: (Outermost layer above region B)