Question

The uppermost layer of skin is:

A) called the dermis
B) full of keratin
C) fed by a good supply of blood vessels
D) called the hypodermis
E) composed of dense connective tissue

Answer 1

The uppermost layer of skin is the epidermis, which is composed of keratin-filled cells option (b). The dermis is the layer below the epidermis and contains blood vessels, sweat glands, and hair follicles. The hypodermis is the fatty layer below the dermis.

Step-by-step explanation:

The uppermost layer of skin is the epidermis. It is the outermost layer of the skin in mammals and is composed of keratin-filled cells. The epidermis serves as a barrier to water and pathogens and does not have a blood supply.

Below the epidermis is the dermis, which is thicker and contains blood vessels, sweat glands, hair follicles, and other structures. Below the dermis is the hypodermis, which is a fatty layer containing blood vessels, connective tissue, and the axons of sensory neurons.