What layer of skin contains bundles of collagen?
dermis
The reticular layer is the deeper layer, thicker, less cellular, and consists of dense connective tissue/ bundles of collagen fibers. The dermis houses the sweat glands, hair, hair follicles, muscles, sensory neurons, and blood vessels.
Where are collagen and elastin fibers found in the skin?
The papillary part of the dermis is a thin sheet located just below the epidermis. It contains a small number of collagen and elastic fibers. The reticular layer of dermis lies deep into it, which contains larger bundles of collagen and elastic fibers that usually run parallel to surface of the skin.
Which of the following layers of our integument contains bundles of collagen and elastic fibers responsible for the strength of the skin integument?
The correct answer is option b, because the reticular layer, is one of two sub layers of the dermis, and contains bundles of collagen, elastic fibers…
What layer of the skin contains keratinocytes melanocytes Merkel cells and Langerhan cells?
The epidermis
34.1 Introduction. The epidermis of the skin is a constantly renewing stratified squamous epithelium. It consists mostly of keratinocytes, but also of Langerhans cells, melanocytes, and Merkel cells resting on a supporting dermis that contains the nerve and vascular networks, which nourish the epidermis.
How many surface layers of skin are there?
3 layers
The skin is made up of 3 layers. Each layer has certain functions: Epidermis. Dermis.
Where are elastin fibers found?
Elastic fibers are found in the skin, lungs, arteries, veins, connective tissue proper, elastic cartilage, periodontal ligament, fetal tissue and other tissues which must undergo mechanical stretching.
Which of the layers of the integument contains significant amounts of collagen and elastin?
The dermis makes up 90% of skin’s thickness. This middle layer of skin: Has collagen and elastin: Collagen is a protein that makes skin cells strong and resilient.
Which layer of the dermis contains the capillaries lymphatic vessels and sensory nerve fibers that supply the epidermis?
papillary layer
In addition, the papillary layer contains phagocytes, defensive cells that help fight bacteria or other infections that have breached the skin. This layer also contains lymphatic capillaries, nerve fibers, and touch receptors called the Meissner corpuscles.
Which layer of human skin contains keratinocytes?
epidermis
Keratinocytes are the predominant cell type of epidermis and originate in the basal layer, produce keratin, and are responsible for the formation of the epidermal water barrier by making and secreting lipids.