Question

As a student in an esthetic program, Hannah is tasked with building a three-dimensional model of the layers of the skin. Her model must include captions describing each skin layer and connect skin histology and physiology to esthetics. Hannah visits a craft store to purchase supplies from which she will construct her model.

To construct the papillary layer, Hannah contorts her fabric into ridges and grooves to simulate the _____.

A) Blood vessels
B) Nerve endings
C) Hair follicles
D) Dermal papillae

Answer 1

Hannah is creating a papillary layer for her skin model and the ridges and grooves she contorts in her fabric simulate the dermal papillae, which are essential for the connection between the dermis and epidermis and also contribute to the skin's tactile sensation. The correct option is d.

Step-by-step explanation:

To construct the papillary layer, Hannah contorts her fabric into ridges and grooves to simulate the dermal papillae. The papillary layer of the skin is the upper layer of the dermis located just below the epidermis.

It contains fing-like projections called the dermal papillae which extend into the epidermis and are visible on the skin surface as epidermal ridges or fingerprints. The papillary layer is made of loose, areolar connective tissue, with collagen and elastin fibers forming a loose mesh.

This structure supports an abundance of small blood vessels as well as nerve fibers, and it is responsible for the strength of the connection between the epidermis and dermis. The dermal papillae increase the surface area for exchange of oxygen, nutrients, and waste products between these layers and also enhance the grip of the skin.

Esthetically, the health and structure of the papillary layer are crucial as it affects the skin's texture and tactile sensation, potentially influencing the treatment protocols in skincare practices. The correct option is d.

Answer 2

Hannah is creating a papillary layer for her skin model and the ridges and grooves she contorts in her fabric simulate the dermal papillae, which are essential for the connection between the dermis and epidermis and also contribute to the skin's tactile sensation. The correct option is d.

Step-by-step explanation:

To construct the papillary layer, Hannah contorts her fabric into ridges and grooves to simulate the dermal papillae. The papillary layer of the skin is the upper layer of the dermis located just below the epidermis.

It contains fing-like projections called the dermal papillae which extend into the epidermis and are visible on the skin surface as epidermal ridges or fingerprints. The papillary layer is made of loose, areolar connective tissue, with collagen and elastin fibers forming a loose mesh.

This structure supports an abundance of small blood vessels as well as nerve fibers, and it is responsible for the strength of the connection between the epidermis and dermis. The dermal papillae increase the surface area for exchange of oxygen, nutrients, and waste products between these layers and also enhance the grip of the skin.

Esthetically, the health and structure of the papillary layer are crucial as it affects the skin's texture and tactile sensation, potentially influencing the treatment protocols in skincare practices. The correct option is d.