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Exam 5: Integumentary System

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Question 31

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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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Question 32

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A ________ is a bruise that is visible through the skin.

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Question 33

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Sebaceous glands discharge an oily,waxy secretion called _______.

The sebaceous gland secretion called sebum has bactericidal properties.

Which are found in sweat? A: Water B: Sodium C: Metabolites D: Waste products

_______ is a fine,unpigmented,downy hair that first appears on the fetus in the last trimester of development.

The formation of thick calluses from manual labor is an example of fibrosis.

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

Nails,hair,and sweat and sebaceous glands are all derived from the epidermis.

Which skin markings usually disappear during childhood?

The secretion of the ceruminous glands forms A: Cerumen with sebum and exfoliated keratinocytes B: Cerumen,which is waterproof C: Cerumen,which traps small insects D: Cerumen,which lubricates the eardrum E: Cerumen,which is a pheromone-like compound

The ability of the components of the integumentary system to respond to stress or trauma is independent of nervous or endocrine system control.

During skin development,cuboidal cells of the periderm flatten to form the ectoderm.

Another name for the skin is the _________ membrane.

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

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

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

When the body is cold and needs to conserve heat,the blood vessels in the dermis dilate to allow for more blood flow in that region.

The reason for the reddish tint seen in lightly pigmented skin is the molecule formed by the combination of oxygen and melanin.

Which actions happen in the stratum granulosum? A: Keratinization B: Cell flattening C: Plasma membranes thicken D: Plasma membranes become less permeable