The sebaceous and sweat glands associated with the skin are classified as ________ glands because they release secretions to the skin's surface via ducts.
endocrine
mucous
serous
exocrine
Which of the following is a lubricant that keeps skin soft and moist and also contains chemicals that kill bacteria?
sweat
sebum
melanin
carotene
Hair color is due to a pigment known as ________.
melanin
keratin
hemoglobin
carotene
Which of the following contains chemicals that kill bacteria and prevent bacterial invasions of the skin?
melanin
sebum
hemoglobin
keratin
Fingerprints and footprints in the epidermis are created by dermal papillae present in the ________.
hypodermis
papillary layer of the dermis
reticular layer of the dermis
subcutaneous tissue
Which of the following abnormal skin colors results from liver disorders?
erythema
cyanosis
jaundice
pallor
Both nails and hair are produced by stratum basale of the epidermis.
True
False
Nails and hair are both composed of keratin.
True
False
Apocrine gland secretions are normally odorless, and may be milky or yellowish in color.
True
False
The arrector pili muscle is represented by ________.
E
B
C
F
The gland that produces a mixture of oily substances and fragmented cells is indicated by ________.
C
E
B
F
The gland that produces sweat is indicated by ________.
E
F
B
C
When James shaves his face, which portion of the hair is removed?
hair follicle
hair follicle
hair shaft
hair matrix
The skin and its derivatives (nails, glands, and hairs) form the ________.