Question

figure 5.1

using figure 5.1, match the following:

site of the dermal ridges that produce epidermal ridges on the epidermal surfaces of the fingers.

Explanation:

Identify the anatomical structures labeled in Figure 5.1

Let's analyze the labels in the provided diagram of the skin:

• A points to the arrector pili muscle.
• B points to the hypodermis (subcutaneous adipose tissue).
• C points to a sweat gland (sudoriferous gland).
• D points to the dermis layer.
• E points to the dermal papillae (specifically within the papillary layer of the dermis, located at the junction with the epidermis).

Relate the question to the labeled structures

The question asks for the "Site of the dermal ridges that produce epidermal ridges on the epidermal surfaces of the fingers."

• Dermal ridges are formed by the superficial projection of the dermis called dermal papillae.
• These papillae lie just beneath the epidermis and are responsible for creating the epidermal ridges (fingerprints) on the surfaces of the fingers.
• Looking at the diagram, label E directly points to the dermal papillae at the epidermal-dermal junction.

Formulate the final answer

Therefore, the letter that matches the description is E.

Answer:

Using Figure 5.1, match the following:

Site of the dermal ridges that produce epidermal ridges on the epidermal surfaces of the fingers. <blank>E</blank>