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Anatomy > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q

The outermost sheath of a hair follicle is the connective tissue root sheath, T/F?

A

True

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2
Q

The protein found in large amounts in the outermost layer of epidermal cells is collagen T/F?

A

False

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3
Q

A needle would pierce the epidermal layers of the forearm in which order?

A. granulosum,basale, spinous, corner
B. Basale, spinosum, granulosum, lucidum, corneum
C. Corneum, granulosum, spinosum, basale

A

C. Corneum, granulosum, spinosum, basale

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4
Q

The major regions of a hair shaft include all of the following except ________.

A

External root sheath

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5
Q

Which of the following cutaneous receptors is specialized for the reception of touch or light pressure?

A

Meissner’s corpuscles

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6
Q

The integumentary system is protected by the action of cells that arise from bone marrow and migrate to the epidermis. Which of the following cells serve this function?

A

Macrophages called dendritic cells ( Langerhans Cells)

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7
Q

What are five functions of the skin?

A 
Protection from mechanical damage
Protection against bacteria
Maintaining body temp
Absorption/excretion
Stimuli reception
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8
Q

What glands are oil secreting?

A

Sebaceous glands

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9
Q

What is the difference between eccrine glands and apocrine glands?

A

Eccrine glands are smaller and excrete directly onto the skin, Apocrine typically has odor

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10
Q

The two basic tissues of which the skin is composed are dense irregular connective tissue, which makes up the dermis and ______.

A

Keratinized stratified squamous epithelium

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11
Q

The tough water repellent protein found in the epidermal cells is called_____.

A

Keratinocytes

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12
Q

The pigments melanin and ______ contribute to skin color.

A

Hemoglobin and Carotene

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13
Q

A localized concentration of melanin is referred to as ______.

A

Freckle

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14
Q

Four protective functions of the skin are ______.

A

Insulation/cushion
Regulate body temp
Protect from mechanical damage
protect from bacterial attack

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15
Q

Layer of translucent cells in thick skin containing dead keratinocytes

A

Stratum lucidum

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16
Q

Two layers containing dead cells

A

Stratum corneum

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17
Q

Dermal layer responsible for fingerprints

A

Papillary layer

18
Q

Vascular region of the skin as a whole

A

Dermis

19
Q

Major skin area as a whole that produces derivates like nails and hair.

A

epidermis

20
Q

Epidermal layer exhibiting the most rapid cell division

A

Stratum basale

21
Q

Layer including scalelike dead cells, full of keratin, that constantly slough off

A

Stratum corneum

22
Q

Layer filled with intermediate fillaments

A

Stratum spinosum

23
Q

Major skin area as a whole that has abundant elastic and collagen fibers

A

Reticular layer

24
Q

Location of melanocytes and tactile cells

A

Stratum basale

25
Q

Tactile cells are also known as ____ cells

A

Merkel

26
Q

Area where weblike pre keratin filaments first appear

A

Stratum spinosum

27
Q

Layer of areolar connective tissue

A

Papillary layer

28
Q

_________ granules contain glycolipids that prevent water loss from the skin.

A

Lamellated

29
Q

Fibers in the dermis are produced by _________

A

Collagen/elastin

30
Q

Glands that respond to rising androgen levels are the ________ glands.

A

Sebaceous

31
Q

cPhagocytic cells that occupy the epidermis are called _______.

A

Langerhans

32
Q

A unique touch receptor formed from a stratum basale cell and a nerve fiber is a _____ _____.

A

Tactile disc

33
Q

What layer is present in thick skin but not in thin skin?

A

Stratum lucidum

34
Q

What anchoring junctions hold the cells of the stratum spinosum tightly together?

A

Desmosomes

35
Q

What substance is manufactured in the skin and plays a role in calcium absorption elsewhere in the body?

A

Vitamin D

36
Q

What are the sensory receptors found in the dermis of the skin?

A

Tactile corpuscles, lamellar corpuscles, free nerve endings, root hair plexus

37
Q

Define cyanosis.

A

Blood/skin is bluish

38
Q

What does the presence of cyanosis imply?

A

Inadequate blood oxygenation

39
Q

What is a bedsore?

A

Injury to the skin and the tissue underneath

40
Q

What is a bedsore also known as?

A

Decubitus ulcer

41
Q

Why do bedsores occur?

A

Cells in certain areas have restricted blood supply from being bedridden and not being turned

Anatomy (17 decks)

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