which letter is pointing to the subcutaneous layer of the skin course hero

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What are the two layers of the skin?

Which letter is pointing to the subcutaneous layer of the skin in the figure a. Which letter is pointing to the subcutaneous layer of. ... Course Title BIO 235; Uploaded By jessnonnie. Pages 36 Ratings 100% (1) 1 out of 1 people found this document helpful;

Why are the cells in the most superficial layer of skin dead?

The skin has two main layers⎯the epidermis and the dermis. The epidermis is the top layer of skin, The dermis is the thick layer of living tissue below the epidermis that forms the true skin, containing blood capillaries, nerve endings, sweat glands, hair follicles, and other structures. …

Which layer of the epidermis resting directly upon the dermis?

Which letter is pointing to the subcutaneous layer of the skin in the figure? F. ... so outermost layers of skin are strong and water-tight. Relies on capillaries in underlying connective tissue for nutrients. Stratum lucidum (clear layer) Only in thick skin. Thin, translucent band superficial to …

Which layer of the skin contains keratin?

View Skin cancer- The subcutaneous layer.docx from NURSING 101 at Harvard University. Skin cancer- The subcutaneous layer The subcutaneous layer which is the deepest layer of the skin …

What is the bottom layer of the epidermis called?

The bottom layer of the epidermis is called the stratum basale, which is a single-celled layer of basal cells. This layer is also called the stratum germinativum, or germinal layer, because it is where the new keratinocytes are produced from the stem cells. These new cells push the older cells toward the surface of the skin. In addition to these proliferating keratinocytes, this layer also contains melanocytes. There are also Merkel cells in this layer, particularly in skin covering touch-sensitive regions of the body, such as the fingertips.

What is the fourth layer of the epidermis?

In the epidermis that covers the thick skin on the palms of the hands and soles of the feet, there is the fourth layer present below the stratum corneum, called the stratum lucidum, or translucent layer. The stratum lucidum is a layer of the skin found only in certain areas of the body and provides extra padding and durability. Keratinocytes in this layer are mostly dead, and they appear translucent under a light microscope.

What is the deepest layer of the skin?

Beneath the skin is a subcutaneous layer called the hypodermis. The hypodermis is the deepest layer of the skin, made up mostly of areolar connective tissue and adipose (fat) tissue.

What is the innermost layer of the integumentary system?

The hypodermis, also called the subcutaneous layer, is the innermost part of the integumentary system. The hypodermis is not technically a part of the skin, or dermis. Instead, it separates the dermis from the muscles and is composed of adipose tissue, or fat, along with loose connective tissue called areolar tissue.

What are the two layers of the skin?

The skin itself has two major tissue layers⎯the epidermis and the dermis . The epidermis is the outermost layer of skin, comprised of several sublayers. This layer of skin contains many cells, each called a keratinocyte, a keratin-producing cell found in the skin. Keratin is the structural protein that lends durability and water impermeability to skin, hair, and nails. Keratin also makes up the body's hair and nails. Cells that contain keratin are generated in the lower layers of the epidermis . These migrate upward, where they are progressively flattened. The topmost layer of the epidermis is composed of dead cells, filled with keratin.

What is the dermis made of?

The dermis is composed of connective tissue that contains glands, nerves, blood vessels, hair follicles, and sensory receptors and can be further classified into a papillary layer and a reticular layer.

What is the layer of the skin that sits directly beneath the epidermis?

The dermis is the layer of the skin that sits directly beneath the epidermis. It is primarily composed of connective tissue that supports and strengthens the skin. It also contains sweat glands, sebaceous glands, nerves, blood vessels, hair follicles, and sensory receptors. The dermis is composed of two layers⎯the papillary layer and the reticular layer.

Why does my skin turn bluish?

when hemoglobin is poorly oxygenated, the skin may take on a bluish-gray tint, especially in mucous membranes or nail beds. Possibly respiratory or circulatory problem.

How many cells are there in the epidermal layer?

20 to 30 cell layers of dead, flat keratinized, membranous sacs, accounts for up to 3/4s of epidermal thickness.

Which connective tissue allows phagocytes and other defensive cells to wander freely?

Areolar connect ive tissue with collagen and elastic fibers and blood vessels. Looseness of this connecctive tissue allows phagocytes and other defensive cells to wander freely as they patrol the area of r bacteria that have penetrated the skin.

What is the function of epidermal cells?

The most abundant epidermal cells, they function mainly to produce keratin. Tied together by desosomes and hinders water movement. Arise from stratum basale

Which layer of the epidermis rests directly upon the dermis?

The layer of the epidermis resting directly upon the dermis is the stratum

Which cell is bound to the basement membrane?

The cells of the stratum basale are bound to the basement membrane with hemidesmosomes.