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bio 150 exam 2 > exam > Flashcards

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1
Q

which of the following is not part of the skin?
epidermis
papillary layer
hypodermis
stratum basale
dermis

A

hypodermis

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2
Q

which of the following is not found in the epidermis ?
melanocytes
fibroblasts
stem cells
keratinocytes
tactile cells

A

fibroblasts

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3
Q

most of the skin _________ mm thick.
0.01 to 0.02
0.1 to 0.2
1 to 2
10 to 20
100 to 200

A

1 to 2

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4
Q

In which of the following regions would a subcutaneous injection be administered?
stratum basale
stratum spinosum
stratum corneum
dermis
hypodermis

A

dermis

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5
Q

Which of the following best describes the composition of the dermis?
Collagen and living keratinocytes
Collagen and dead keratinocytes
Collagen and fibroblasts
Elastic fibers and melanocytes
Elastic fibers and dendritic cells

A

collagen and fibroblasts

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6
Q

Which of the following cells is largely responsible for skin color?
Dendritic cell
Keratinocyte
Melanocyte
Tactile cell
Dead keratinocyte

A

melanocyte

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7
Q

Which layer of the epidermis consists of up to 30 layers of dead cells?
Stratum basale
Stratum spinosum
Stratum granulosum
Stratum lucidum
Stratum corneum

A

stratum corneum

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8
Q

Which of the following are associated with the sense of touch?
Fibroblasts
Melanocytes
Keratinocytes
Dendritic cells
Tactile cells

A

tactile cells

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9
Q

Which layer is seen only in thick skin?
Stratum basale
Stratum spinosum
Stratum granulosum
Stratum lucidum
Stratum corneum

A

stratum lucidum

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10
Q

The thickest and deepest layer of the dermis is the _______ layer.
areolar
keratin
reticular
collagen
papillary

A

reticular

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11
Q

The hypodermis is characterized by an abundance of which tissue?
Statified squamous epithelium
Smooth muscle
Nervous tissue
Adipose tissue
Dense irregular connective tissue

A

adipose tissue

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12
Q

The reddish color of the skin of the lips is primarily due to the presence of which pigment?

Hemoglobin

Myoglobin

Melanin

Carotene

Keratin

A

hemoglobin

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13
Q

increased bilirubin levels cause a skin discoloration called

erythema
jaundice
pallor
bronzing
cyanosis

A

jaundice

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14
Q

Excessive hairiness is called

Multiple Choice
telogenism
anagenism
catagenism
alopecia
hirsutism

A

hirsutism

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15
Q

Mammary glands are modified _________ glands that develop within the female breasts during pregnancy and lactation.

merocrine
apocrine
ceruminous
sebaceous
eccrine

A

apocrine

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16
Q

ABCDE RULE

Asymmetry, border irregularity, color, diameter, and evolution
Asymmetry, brightness, color, diameter, and elevation
Aspect, brightness, color, distance, and evolution
Aspect, border irregularity, color, distance, and elevation
Area, border irregularity, color, density, and elevation

A

Asymmetry, border irregularity, color, diameter, and evolution

17
Q

Which of the following tissues is not found as part of a long bone?
Osseous tissue
Nervous tissue
Adipose tissue
Cartilage
Transitional epithelium

A

transitional epithelium

18
Q

Which of the following is not a function of the skeleton?
Storage of calcium and phosphate ions
Storage of red blood cells
Providing support for most muscles
Protecting the brain
Protecting the spinal cord

A

storage of red blood cells

19
Q

Osseous tissue is a(an) _____ tissue.

connective
epithelial
dense regular
dense irregular
reticular

A

connective

20
Q

The center cavity of the diaphysis of a long bone is called the ______.
marrow cavity
central canal
nutrient foramen
canaliculus
epiphysis

A

marrow cavity

21
Q

The expanded ends of a long bone are called the

epiphyses

diaphyses

articular cartilages

periosteums

endosteums

A

epiphyses

22
Q

A long bone is covered externally with a sheath called the _______ , whereas the marrow cavity is lined with the ______.

epiphysis; diaphysis
diaphysis; epiphysis
compact bone; spongy bone
periosteum; endosteum
endosteum; periosteum

A

periosteum; endosteum

23
Q

When ______ become enclosed in lacunae, they become cells called _____.

osteogenic cells; osteoblasts
osteoblasts; osteoclasts
osteoblasts; osteocytes
osteocytes; osteoclasts
osteocytes; osteoblasts

A

osteoblasts; osteocytes

24
Q

Bone-forming cells are called

osteogenic (osteoprogenitor) cells
osteoblasts
osteoclasts
osteocytes
osteons

A

osteoblasts

25
Q

Which of the following is an inorganic component of the bone matrix?

Proteoglycans
Glycoproteins
Collagen
Hydroxyapatite
Glycosaminoglycans

A

Hydroxyapatite

26
Q

The hardness of bone comes from ______, whereas _______provide(s) some degree of flexibility.

hydroxyapatite and other minerals; proteins

collagen and elastic fibers; minerals

glycoproteins; proteoglycans

calcium carbonate; calcium phosphate

proteins; collagen

A

collagen and elastic fibers; minerals

27
Q

Red bone marrow does not contain

myeloid tissue
yellow bone marrow
hematopoietic tissue
white blood cells
red blood cells

A

myeloid tissue

28
Q

Mature bones are remodeled throughout life via a process known as

intramembranous ossification
endochondral ossification
interstitial growth
appositional growth
metaphysical growth

A

appositional growth

29
Q

Chondrocytes multiply in the zone of
of the metaphysis.

reserve cartilage
cell proliferation
cell hypertrophy
calcification
bone deposition

A

cell proliferation

30
Q

Bone elongation is a result of

cartilage growth
muscle growth
osseous tissue growth
fibrous membrane addition
dense irregular connective tissue addition

A

cartilage growth

31
Q

Which of the following is the correct sequence of events in the healing of a bone fracture?

Bone remodeling → soft callus formation → hard callus formation → hematoma formation
Bone remodeling → hard callus formation → soft callus formation → hematoma formation
Hematoma formation → soft callus formation → hard callus formation → bone remodeling
Hematoma formation → hard callus formation → soft callus formation → bone remodeling

Soft callus formation → hard callus formation → hematoma formation → bone remodeling

A

Hematoma formation → soft callus formation → hard callus formation → bone remodeling

32
Q

A soft callus forms during

endochondral ossification
intramembranous ossification
bone growth at the metaphysis
the remodeling of bone
the healing of a fracture

A

the healing of a fracture

bio 150 exam 2 (1 decks)

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