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Exam 5: The Integumentary System

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Question 31

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Joe just burned himself on a hot pot. and the burn is quite painful. Joe's burn would best be described as a third-degree burn.

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Question 32

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What are the most important factors influencing hair growth?

A) nutrition and hormones
B) age and glandular products
C) sex and hormones
D) the size and number of hair follicles

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Question 33

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The skin is not able to receive stimuli because the cells of the epidermis are not living and therefore there are no sensory receptors in the skin.

The arrector pili muscle's predominate, useful function in humans is to ________.

The reason that the nail bed appears pink is the presence of a large number of melanocytes in the underlying dermis.

The dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.

The papillary layer of the dermis is composed of loosely packed connective tissue withnumerous peg-like projections that provide a great deal of surface area connecting the dermis to the epidermis. Which of the statements below do not represent benefits provided by thepapillary layer's anatomy?

The sebaceous glands are simple alveolar glands that secrete a substance known as sebum. The secretion of sebum is stimulated ________.

Responsible for shock absorption and located in the hypodermis. -Responsible for shock absorption and located in the hypodermis.

The epidermis consists of five layers of cells, each layer with a distinct role to play in thehealth, well-being, and functioning of the skin. Which of the following layers is responsible for cell division and replacement?

The protein found in large amounts in the outermost layer of epidermal cells is collagen.

There are several reasons other than genetics for hair loss. Identify some of these other factors.

Regardless of race, all human beings have about the same number of melanocytes.

Apocrine glands, which begin to function at puberty under hormonal influence, seem to play little role in thermoregulation. Where would we find these glands in the human body?

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?

The function of the root hair plexus is to ________.

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

Which layer of skin is least protected by melanin?

The dermis is a strong, flexible connective tissue layer. Which of the following cell types are likely to be found in the dermis?