Exam 5: The Integumentary System

Melanoma is a form of skin cancer that arises from melanocytes.Melanoma is most common in Caucasians between 40 and 70 years of age.Explain why Caucasians would have a greater incidence of melanoma.

The dermis contains blood vessels and nerve fibers while the epidermis does not.

Match the following: -The glands that serve an important function in thermoregulation.

Which of the following cells and their functions are correctly matched?

A light skinned person who is very cold may have a pale appearance.Which of the following is the best explanation for why this might be so?

Why are the apocrine sweat glands fairly unimportant in thermal regulation?

Match the following: -Cells plus a disc-like sensory nerve ending that functions as a sensory receptor for touch.

Which of the following statements indicates the way in which the body's natural defenses protect the skin from the effects of UV damage?

Match the following: -May indicate embarrassment,fever,hypertension,inflammation,or allergy.

Mary noticed a large,brown spot on her skin.She has been playing tennis in the sun for several years without sun protection.She reported the discovery to a friend,who told her to apply the ABCD rule to determine whether or not she had malignant melanoma.Her friend told her that if her answer was "no" to the questions that were asked by the ABCD rule,she had nothing to worry about.What is the ABCD rule and should she ignore the spot if her answers are negative?

Which statement correctly explains why hair appears the way it does?

Match the following: -The most abundant cells of the epidermis.

Which layer of the epidermis will be supplied with the highest levels of oxygen from the blood?

For a doctor,simply looking at a patient's skin can help in making a diagnosis.

The surge of sex hormones that accompanies puberty has a wide range of effects on the body.One of those effects is to enhance the activity of the sebaceous glands,increasing the production of sebum.Which of the following is the most likely to result from the increased sebaceous activity?

Which layer of skin is LEAST protected by melanin?

The skin cancer most likely to metastasize is cancer of the melanocytes.

The only place you will find stratum ________ is in the skin that covers the palms,fingertips,and soles of the feet.

Match the following: -May indicate fear,anger,anemia,or low blood pressure.

The skin protects,but how does it protect us and from what? Describe how the epidermal dendritic cells and melanocytes protect us.Describe what these cells protect us from.