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Exam 5: Integumentary System

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Question 1

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The sebaceous gland secretion called sebum has bactericidal properties.

A) True
B) False

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True

Question 2

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_________ perspiration is the release of water vapor from sweat glands under "normal" conditions when one is not sweating.

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During the fetal period,sebum from the sebaceous glands mixes with the cells of the sloughed off periderm to form the vernix caseosa.

The epidermis exhibits variations among different body regions within a single individual,as well as differences between individuals.

The condition in which the skin appears golden brown as a result of Addison Disease is called ________.

Nails are hard derivatives formed from the stratum ______ of the epidermis.

Which are correct concerning thick skin? A: More limited in its distribution than thin B: Has only four of the strata C: Thickness ranges from 0.4 to 0.6 millimeters D: Thickness ranges from 0.075 to 0.15 millimeters E: Has sebaceous glands F: Has sweat glands

-Which number indicates a dermal papilla?

Among the uses of the yellow-orange pigment carotene is/are A: Providing coloration to the skin B: Acting as a precursor to Vitamin A C: Reducing the number of potentially dangerous molecules formed during metabolic activity D: Improving immune cell number E: Improving immune cell activity

During aging of the integumentary system,sweat production increases as a result of improved sweat gland activity.

Which of these comprise the nail plate? A: Free edge B: Nail folds C: Eponchyium D: Nail root E: Nail body

A mole with an irregular border is concern for possible cancer.

Fine hair called _________,which is unpigmented or lightly pigmented,is the primary human hair and is found on the upper and lower limbs.

The reason a human may be paler when exposed to cold temperatures is

-Number 1 is pointing to the

The stratum _______ is only found in thick skin,such as the skin covering the palms and soles.

The stratum basale attaches to an underlying _______ membrane that separates the epidermis from the adjacent dermis.

A surgeon would prefer to do an incision parallel to a cleavage line.

The dermis is derived from mesoderm,but prior to the formation of the components of the dermis the mesoderm layer forms a connective tissue layer called _________.

-Which number indicates an apocrine sweat gland?