Exam 5: The Integumentary System

Vitamin C is important for collagen synthesis.Which area of the skin would be most affected if there is a deficiency in vitamin c?

Which statements describing vitamin D are true. 1)The skin produces Vitamin D when exposed to UV light. 2)When the skin is exposed to UV light,it begins the reaction to convert the precursor molecule to calcitriol in the liver than kidneys. 3)Vitamin D supplements can be taken if individuals are not exposed to UV light. 4)Vitamin D stimulates the uptake of calcium from the intestines. 5)Vitamin D inhibits the function of phagocytes in immunity.

Which statements describe the function and structure of the skin? 1)Collagen is the strongest fiber in the skin. 2)Blood vessels in the dermis supply the epidermis with nutrients. 3)The arrangement of epidermal ridges,mixed with sweat create fingerprints. 4)The papillary layer is the strongest portion of the dermis. 5)The reticular layer promotes stretching of the skin.

Keratinized stratified squamous epithelium composes the

In the diagram of skin shown below,which labeled structure generates fingerprints?

This layer is attached to the basement membrane by hemidesmosomes and to other cells by desmosomes.

Which structure would recognize pulling of the skin during stiches even after a doctor anesthetizes the area?

In the diagram of a hair root shown,which area may be missing in thinner hair?

Which structure in the figure produces a protein that helps protect the skin and underlying tissues from heat,microbes and chemicals?

Which structures house Meissner's corpuscles,free nerve endings and capillary loops?

How do nutrients reach the epidermis?

John has just been brought into the emergency room following a fiery explosion at a chemical plant.He is diagnosed with third degree burns over the anterior surfaces of his arms and trunk.What specific structural damage has occurred to his skin? What risks to John's life have resulted from this damage?

Sutures are required to close up a tear in the skin.What term best describes this injury?

A raised scar that extends into previously normal tissue is a(n)

In the figure of a sagittal section of a fingernail shown,which area is comparable to the stratum corneum with visible vascular tissue beneath?

Put the events of keratinization in order. A.Accumulate keratohyalin granules B.Cells increase in size,some retain ability to divide C.Cell membrane thickens.Cells imbedded in lipid matrix. D.Cells within this layer proliferate

Dense irregular connective tissue will be found in the

The skin is known as the _________membrane.

In the diagram,which area is composed of areolar connective tissue?

An individual allergic to peanut butter eats a snack containing trace amounts.While the reaction is not severe,the individual shows signs of elevated patches all over their skin.These patches are