Skin
Which layer of the epidermis undergoes mitosis to replace old cells?
Stratum Basale
What are the two types of modified apocrine glands?
Mammary and Ceruminous Glands
What type of cells compose the strands of hair?
Dead, keratinized cells
What are the 6 functions of the integumentary system?
Protection, Body temperature regulation, cutaneous sensation, metabolic functions, blood reservoir, and excretion
What does ABCD stand for?
Asymmetry, Border irregularity, Color, and Diameter
Which layers of the epidermis are composed of living cells?
Stratum granulosum, Stratum spinosum, and Stratum basale
What type of glands are found in the axillary and anogenital regions?
Apocrine glands
Identify two functions of the hair.
* Sense insects on skin
* Guard hair against physical trauma, heat loss, and sunlight
* Eyelashes shield eyes
* Nose hairs filter large particles from air
What are the 3 cell types that form biological barriers?
Langerhans' cells, macrophages, and sebum
Which of the 3 types of skin cancer that we learned about is the most common?
Basal Cell Carcinoma
Which pigment is responsible for the orange color found in the palms of the hands and soles of the feet?
Carotene
What secreted substance has bactericidal properties and slows water loss?
Sebum
What is the name of the structure that results from the epidermal surface folding down into the dermis?
Hair follicle
What is the name of the structure located in the dermal papillae that detects subtle feelings like a brush or caress?
Meissner's corpuscles
What 2 treatments are most effective against melanoma?
Surgical excision accompanied by immunotherapy
Which layer of the dermis is made of dense, irregular connective tissue?
Reticular layer
Which type of glands contribute to thermoregulation of the body?
Eccrine/Merocrine Glands
What is the name of the structure that contracts in response to fear or cold?
Arrector pili muscle
What happens to the blood vessels when the body is trying to cool itself?
Dilation
What type of burns result in the absence of pain due to destroyed nerve endings?
Third degree burns
What is the scientific word we use to describe extreme stretching of the skin that leads to dermal tearing?
Striae
Which gland secretion functions as a biological barrier in the external ear canal?
Cerumen
List 2 places where terminal hair can be found.
Eyebrows, scalp, axillary region, pubic regions, and body of adult males
What type of barrier does melanin form?
Chemical barrier
What are the fluid-filled blisters called that are caused by herpes simplex infection?
Cold sores/ fever blisters