Ch. 5 Connect + Quiz Flashcards
The hair present only prenatally is called __________, most of which is replaced by __________ by the time of birth.
pilus; terminal hair
downy hair; terminal hair
vellus hair; terminal hair
vellus hair; downy hair
downy hair; vellus hair
downy hair; vellus hair
A pilus is also known as a __________.
hair
hair follicle
tiny muscle that moves a hair
sensory nerve fiber around the base of a hair
gland associated with a hair follicle
hair
The __________ provides the hair with its sole source of nutrition.
bulb
root
shaft
dermal papilla
medulla
dermal papilla
Each hair grows in an oblique epithelial tube called a/an __________.
hair follicle
velds hair
pilus
bulb
dermal papilla
hair follicle
Bilirubin causes a skin discoloration called __________.
erythema
jaundice
pallor
bronzing
cyanosis
jaundice
Yellowing skin can indicate failure of the __________ to function properly.
liver
kidneys
gallbladder
urinary bladder
lungs
liver
Which of the following skin conditions or appearances would most likely result from liver failure?
pallor
erythema
pemphigus vulgaris
jaundice
melanization
jaundice
A mother of a toddler visits her pediatrician because her child is turning orange. Lab tests indicate no abnormality. What could be causing the orange coloration?
The toddler’s diet consists of mostly sweet potatoes and carrots.
The toddler was in the sun too long.
The mother has been feeding the baby orange soda.
There is no logical explanation for this coloration change.
The toddler’s diet consists of mostly sweet potatoes and carrots.
The contraction of the arrector muscles in humans causes __________.
hairs to stand on end trapping an insulating layer of warm air next to the skin
generation of heat to raise the body temperature
hairs to stand on end to make the individual appear bigger
hairs to stand on end with no apparent function
increased ability to feel pain
hairs to stand on end with no apparent function
Dehydration could cause a decrease in the function of __________ glands, which could result in hyperthermia.
mammary
ceruminous
sebaceous
appocrine sweat
eccrine sweat
eccrine sweat
Which of the following does not interfere with microbial invasion of the skin?
the acid mantle
melanin
cerumen
keratin
sebum
melanin
Cells of the epidermis that stand guard against pathogens that breach the surface of the skin are __________.
dendritic cells
melanocytes
keratinocytes
merkel cells
dendritic cells
People of all skin colors have approximately the same concentration of melanocytes per square centimeter. What can you conclude about melanin production?
More melanin is produced by each melanocyte in people with dark skin.
Melanin has a lighter color in people with light skin coloration.
Melanin is darker in people with dark skin.
Some melanocytes in light skinned people are non-functional.
More melanin is produced by each melanocyte in people with dark skin.
Most of the skin is ___________ mm thick.
0.01 to 0.02
0.1 to 0.2
1 to 2
10 to 20
100 to 200
1 to 2
Fingerprints left on things we touch result from a pattern created by the __________.
dermal papillae
flexion creases
stratum basale
subcutaneous tissue
subcutaneous fat
dermal papillae
Which of the following is associated with the sense of touch?
fibroblasts
melanocytes
keratinocytes
dendritic (langerhans) cells
tactile (merkel) cells
tactile (merkel) cells
A 3 mm thick laceration of the skin of the anterior forearm would not harm the _________ layer of the epidermis.
papillary
stratum spinosum
stratum granulosum
stratum lucidum
stratum corneum
stratum lucidum