Exam 5: The Integumentary System

The _____ of the hair is the portion that projects from the surface of the skin.

Thin skin lacks the stratum _____ layer of the epidermis.

Keratohyalin granules are characteristic of the stratum _____ layer of the epidermis.

The lunula of a nail appears whiter than the rest of the nail due to the structure of the stratum basale.

Which of the following is found in the stratum basale?

Identify the cell type that produces melanin.

Thick skin, containing all five layers of the epidermis, is found in areas of all of the following except _____.

Cells in the deepest layer of the epidermis divide to produce all other epidermal cells. From deepest to most superficial, the cells pass through the layers in what order? 1) stratum spinosum 2) stratum basale 3) stratum corneum 4) stratum lucidum (only in thick skin) 5) stratum granulosum

Tattoos are created by injecting ink with a needle into the _____.

Most of the age-related changes associated with the integumentary system occur in the epidermis.

Surface patterns that develop on the skin of the hands and feet are due to the presence of dermal papillae and are called _____ ridges.

Discuss the three common forms of skin cancer.

The layer of the epidermis containing the most layers of cells is the stratum _____.

Development of blisters following exposure of skin to heat is indicative of a first-degree burn.

Albinism is caused by a total lack of melanocytes.

Melanocytes synthesize melanin from which amino acid?

Functions of the skin include:

One of the factors responsible for skin color differences among races is the amount of melanin the keratinocytes produce and transfer to melanocytes.

What is the correct order for the development of the dermis?

The skin is supplied with blood by two arterial plexuses called the papillary plexus and the cutaneous plexus.