5 Written questions
5 Matching questions
- Arrector pili
- Subcutaneous tissue
- a a tough, insoluble protein found in tissues such as hair, nails, and epidermis of the skin.
- b the deep layer of the skin; composed of dense, irregular connective tissue
- c the membranous sac enveloping the heart.
- d a smooth muscle attached to hair follicles that causes "goose bumps" to appear on the skin when contracted
- e essentially is adipose tissue. Not part of the skin, but it does anchor the skin to underlying organs and provides a site for nutrient (fat) storage. The tissue serves as a shock absorber and insulates the deeper tissues from the extreme temperature changes occurring outside the body. (responsible for women's curves).
5 Multiple choice questions
- glands that empty their sebum secretion into hair follicles.
- a scale-like modification of the epidermis that corresponds to the hoof or claw of other animals. Has a free edge, a body(visible attached portion), and a root (embedded in the skin).
- slightly slanted compound structures. The inner epidermal sheath is composed of epithelial tissue and forms the hair. The outer dermal sheath is actually dermal connective tissue. Dermal region supplies blood vessels to the epidermal portion/reinforces it.
- the glands that produce a saline solution called sweat.
- membrane that lines the fibrous capsule of a synovial joint.
5 True/False questions
Serous fluid → glands that empty their sebum secretion into hair follicles.
Stratum basale → the outermost layer, 20 to 30 cell layers thick and accounts for ¾ of the epidermal thickness. Shinglelike dead cell remnants, full of keratin. The layer provides a durable overcoat for the body. Protects deeper cells from hostile environment(air) and from water loss. Resists biological, chemical, and physical assaults. Layer is replaced by cells produced by the division of the deeper stratum basale cells. New epidermis every 25 to 45 days. (flakes off as dandruff)
Papillary layer → the deepest skin layer, contains irregularly arranged connective tissue fibers, as well as blood vessels, sweat and oil glands and deep pressure receptors called lamellar corpuscles.
Exocrine Gland → glands that have ducts through which their secretions are carried to a body surface (skin or mucosa)
Sebum → a clear secretion that is primarily water plus some salts (sodium chloride), vitamin C, traces of metabolic wastes (ammonia, urea, uric acid), and lactic acid(the chemical that accumulates during vigorous muscle activity) sweat is acidic pH from 4-6. Sweat reaches the surface through ducts that opens as a pore.