Question

Describe the layers of the dermis. (Module 5.4A)

a) The superficial papillary layer contains stratified squamous epithelial tissue. The deep reticular layer contains areolar tissue with capillaries, lymphatic vessels, and sensory neurons.
b) The superficial reticular layer contains areolar tissue with capillaries, lymphatic vessels, and sensory neurons. The deep papillary layer contains dense irregular connective tissue with collagen and elastic fibers.
c) The superficial papillary layer contains dense irregular connective tissue with collagen and elastic fibers. The deep reticular layer contains areolar tissue with capillaries, lymphatic vessels, and sensory neurons.
d) The superficial reticular layer contains dense irregular connective tissue with collagen and elastic fibers. The deep papillary layer contains areolar tissue with capillaries, lymphatic vessels, and sensory neurons.
e) The superficial papillary layer contains areolar tissue

Answer 1

The dermis is divided into two layers: the papillary layer and the reticular layer. The papillary layer is the superficial layer made up of loose, areolar connective tissue and contains various structures such as blood vessels, lymphatic capillaries, and touch receptors. The deeper reticular layer is composed of dense, irregular connective tissue and provides structure and strength to the skin.

Step-by-step explanation:

The dermis is divided into two layers: the papillary layer and the reticular layer. The papillary layer is the superficial layer of the dermis. It is made up of loose, areolar connective tissue that contains collagen and elastin fibers, fibroblasts, fat cells, blood vessels, phagocytes, lymphatic capillaries, nerve fibers, and touch receptors called Meissner corpuscles.

The reticular layer is the deeper layer of the dermis. It is composed of dense, irregular connective tissue that contains collagen and elastin fibers. It provides structure, strength, and elasticity to the skin. The reticular layer is well vascularized and has a rich supply of sensory and sympathetic nerves.