Question

Which of the following is true of the stratum germinativum

a. it is composed of about 30 layers of dead, flattened, keratinized cells
b. it is composed of dense fibrous connective tissue
c. it lies on top of the dermis and has access to a rich supply of blood

Answer 1

The stratum germinativum, or stratum basale, is the deepest layer of the epidermis, lying on top of the dermis with a rich blood supply, and is not composed of dead cells or dense fibrous connective tissue.

Step-by-step explanation:

The correct answer regarding the stratum germinativum, also known as the stratum basale, is that it lies on top of the dermis and has access to a rich supply of blood.

This layer is the deepest part of the epidermis and attaches to the basal lamina. It contains stem cells that divide to form new keratinocytes, and these cells bond to the dermis through intertwining collagen fibers in the basement membrane.

The stratum basale is also responsible for forming connections with the dermis via dermal papillae, which increase the strength of the connection.

Unlike the stratum corneum, which consists of 15 to 30 layers of dead and flattened keratinized cells, the stratum basale is not composed of dead cells and does not possess the grainy appearance that characterizes stratum granulosum.