5.1 Integumentary System - Part 3 Flashcards
Hair follicles are made from epithelial cells of the __________.
Epidermis
Hair follicles are made in the epidermis that “dips” into the ______________ .
Dermis
Arrector pili muscles are found what layer of the skin?
Dermis
Stem cells, important in mitosis, are found in what layer of the skin?
Epidermis
Sweat glands are mainly located in what layer of the skin?
Dermis
Sebaceous glands are mainly located in what layer of the skin?
Dermis
Melanocytes are located in what layer of the skin?
Epidermis
Keratinocytes are located in what layer of the skin?
Epidermis
Collagen and Elastin fibers are found in what layer of the skin?
Dermis
Collagen and Elastin fibers are found in what accessory structure in the integumentary system?
Hypodermis
One would find ______________ in the stratum basale.
Stem cells
What major chemical determines the skin color?
Melanin
What color is the melanin pigment?
Black
What influences production of melanin in the skin?
- Genetics
- Exposure to UV rays
White blood cells (leukocytes) travel through the skin looking for___________________ to keep the body healthy.
Foreign invaders like bacteria.
If white blood cells find bacteria in the tissues, what process can they use to destroy the bacteria?
Phagocytosis
Which stratum layer of the epidermis is designed for protection?
Stratum corneum
What tissue is found in the stratum corneum?
Stratified squamous epithelium
The most abundant protein of the epidermis is:
Keratin
What is the purpose of keratin in skin, nails and hair?
Hardens them.
The most abundant protein of the dermis is:
Collagen
What is the purpose of collagen fibers?
Provides strength
What layer of the skin are melanocytes located?
Epidermis
What substance gives reddish to pink hue to the skin?
Hemoglobin
What is the function of hemoglobin in the blood?
Transports Oxygen
Blueness of the skin is called:
Cyanosis
Cyanosis of the fingernails could be a sign of:
Low oxygen levels
When the skin and eyes have a yellow color this is referred to as:
Jaundice
Jaundice is associated with which chemical in the body?
Bilirubin
The first organ that most individuals think of when jaundice is present is the ____________.
Liver