Question 1

Acne is a disorder associated with ________.&#10;A) sweat glands&#10;B) sebaceous glands&#10;C) merocrine&#10;D) mammary glands

Accepted Answer

Acne is caused by overactive sebaceous glands, which produce excess oil and can lead to clogged pores and inflammation.

Question 2

What are the types of hair that a lightly pigmented and distributed over much of the body as &#34;peach fuzz?&#34;&#10;A) arrector pili&#10;B) intermediate&#10;C) vellus&#10;D) terminal

Accepted Answer

Vellus hair is the type of hair that is lightly pigmented and distributed over much of the body as "peach fuzz." Arrector pili are smooth muscle cells that are associated with hair follicles and cause "goosebumps" when contracted. Intermediate hair is thicker and darker than vellus hair but thinner and lighter than terminal hair. Terminal hair is coarser, longer, and darker than vellus hair and is found on the scalp, face, armpits, and pubic region.

Question 3

Which of the following are the two types of sudoriferous (sweat) glands?&#10;A) mammary and sebaceous&#10;B) eccrine and apocrine&#10;C) mammary and merocrine&#10;D) sebaceous and merocrine

Accepted Answer

The two types of sweat glands are eccrine and apocrine. Mammary glands produce milk, sebaceous glands produce oil, and merocrine glands are another name for eccrine glands.

Question 4

Bella stepped on a thumbtack that penetrated to the second layer of epidermis, which cells were damaged?&#10;A) spinosum&#10;B) lucidum&#10;C) basale&#10;D) granulosum

Accepted Answer

The answer of Bella stepped on a thumbtack that penetrated...

Question 5

The dermis ________.&#10;A) lacks sensory corpuscles and glands&#10;B) is where melanocytes are found&#10;C) has two layers&#10;D) is avascular

Accepted Answer

The dermis has two layers, the papillary and reticular layers. Option A is incorrect as the dermis contains sensory corpuscles and glands. Option B is partly correct as the dermis does contain melanocytes, but it is not the main function of the layer. Option D is incorrect as the dermis is vascular, unlike the epidermis which is avascular.

Question 6

If a needle pierced your forearm, what is the order of epidermal layers the needle would pass through?&#10;A) basale, spinosum, granulosum, lucidum, corneum&#10;B) granulosum, basale, spinosum, corneum&#10;C) basale, spinosum, granulosum, corneum&#10;D) corneum, granulosum, spinosum, basale

Accepted Answer

The correct order of epidermal layers from the outer surface inward is: stratum corneum, stratum granulosum, stratum spinosum, and stratum basale.

Question 7

The papillary layer of the dermis consists of areolar tissue containing numerous collagen and elastic fibers. Folds in the tissue are called ________.&#10;A) dermal papillae&#10;B) hair follicles&#10;C) sebaceous glands&#10;D) reticular papillae

Accepted Answer

The papillary layer of the dermis is characterized by projections called dermal papillae, which interlock with the epidermis above, increasing the area of contact between the two layers and strengthening the connection between the epidermis and dermis.

Question 8

Which of the following layers of the epidermis is responsible for cell division and replacement?&#10;A) stratum spinosum&#10;B) stratum basale&#10;C) stratum corneum&#10;D) stratum granulosum

Accepted Answer

The stratum basale, also known as the basal cell layer, is the innermost layer of the epidermis and is responsible for cell division and replacement. This layer contains stem cells that constantly divide and differentiate into new keratinocytes, which then migrate towards the surface and replace older cells that have been shed.

Question 9

What is the whitish portion of the proximal nail body where blood vessels do not show?&#10;A) nail root&#10;B) eponychium&#10;C) lunula&#10;D) nail body

Accepted Answer

The lunula is the whitish half-moon shaped area at the base of the nail, and it is where the nail matrix (the part of the nail responsible for growth) is visible through the nail. Blood vessels do not show in this area, which contributes to its whitish appearance.

Question 10

Which muscles attached to hair follicles cause &#34;gooseflesh?&#34;&#10;A) arrector pili&#10;B) arrector folliculi&#10;C) arrector integument&#10;D) skeletal muscle

Accepted Answer

The muscles that cause "gooseflesh" are the arrector pili muscles, which are attached to hair follicles. When these muscles contract, they cause the hair to stand up, creating the appearance of goosebumps on the skin.

Question 11

In thick skin, what is the extra layer of cells in the epidermis?&#10;A) stratum lucidum&#10;B) stratum basale&#10;C) stratum corneum&#10;D) stratum granulosum

Accepted Answer

The answer of In thick skin, what is the extra...

Question 12

Keratinocytes are important cells in the epidermis because they ________.&#10;A) take about 2-3 days to migrate to the surface of the skin&#10;B) protect the skin from UV rays&#10;C) produce a fibrous protein that gives the skin protective properties&#10;D) are able to reproduce sporadically as needed

Accepted Answer

The answer of Keratinocytes are important cells in the epidermis...

Question 13

What is the pigment that protects deeper cells of the skin from harmful UV radiation?&#10;A) melanocytes&#10;B) keratinocytes&#10;C) melanin&#10;D) keratin

Accepted Answer

The answer of What is the pigment that protects deeper...

Question 14

Which of the following is a skin receptor for touch?&#10;A) tactile&#10;B) free nerve ending&#10;C) lamellated corpuscles&#10;D) Pacinian corpuscles

Accepted Answer

The answer of Which of the following is a skin...

Question 15

Which type of burn destroys the entire epidermis and portions of the dermis but does not injure hair follicles and gland in the dermis?&#10;A) third-degree burn&#10;B) fourth-degree burn&#10;C) first-degree burn&#10;D) second-degree burn

Accepted Answer

The answer of Which type of burn destroys the entire...

Deck 11: Integumentary System