Integumentary system part 2 Flashcards
What glands are only found in the ear canal
Ceruminous glands
What is the pH or seat and sebam relative to blood and what is that function?
about 10 times more acidic than blood. To be antibacterial and antimicrobial
What is Scopolamine and how is administered
A sea sickness medication that is administered transdermally
What is transdermal drug administration
drugs administered through skin via a patch
How can ATP be used as a chemical message?
When as cell is broken ATP on the outside of the cell can serve as a signal to recruit the immune system
What are the common immune cell ins the epidermis and what layers are they found in
The Langerhan Cells (Epidermal dendritic cells). They are found in the stratum spinous and the strum granulosum
The reticular layer of the dermis is composed of what tissue type?
Dense irregular tissue
The papillary layer of the dermis is composed of what tissue type?
areolar connective tissue
What two things come together to form the boundary of the dermis and epidermis?
The dermal papillae and the epidermal ridge
In what layer of the skin would you find the sweat and sebaceous glands?
The reticular layer of the dermis
Where would you find a Merkel cell and what is it’s function?
In the upper dermis and lower epidermis. They are responsible for light touch.
Where do you find the actively dividing cells for the hair
The hair bulb
Name 4 types of Integumentary Glands
Sudoriferous, Lactiferous, Sabaceous, Ceruminous
What are sweat glands also called?
Sudoriferous Glands
Where in the body can you find Apocrine Glands?
Axillae, pubic region, and nipple/areola
What the two types of sweat glands.
Eccrine and Apocrine.
What type of secretion do eccrine glands use?
Merocrine
What type of secretion do apocrine glands use what does it entail?
Apocrine sectretion: partial cell lysing
What type of secretion do sebaceous glands use?
Holocrine
What structure is responsible for detecting pressure change and high frequency vibrations?
Pacinian of Lamellated Corpuscles
What is the crescent shaped are near the base of you fingernail called
The Lanula. It it the most active area of nail growth.
What is the name of the muscle associated with your hair and what type of muscle is it
Arrector Pili. It is smooth Muscle
What are major waste products (other than water) in eccrine
Salt and Urea
What properties of sebam help in protection
Sebam interferes with cell wall of fungus and bacteria and its acidity helps fight off pathogens
What is an additional nile called
polythelia
What is another name for your cuticle and what layer of the skin is it?
eponychium. In the stratum corneum
What is the Lanula?
The moon art of the finger nail
Other than sweat how does the skin thermoregulate?
Dialation of the blood vessels
What kind of vitamins can cross the cell membrane?
Lipid soluble vitamins such a D, E, A and K
In a sedentary person how much do you sweat a day on average?
1/2 liter
What are examples of transdermal drugs?
Nitroglycerin, scopolamine, estradiol, nicotine
What is produced by UVA exposure?
Free Radicals
What is the most common skin cancer., and what layer is the cancel
Basal cell carcinoma, stratum baselae least dealt cancer
What type of cell is involved in Squamous cell carcinoma
Keratinicytes in the stratum spinosum go through mitosis
What are the ABCDEs of Malignant melanoma?
Asymmetry, border irregularity, color, diameter over 6mm, elevation
Where does malignant melanoma derive from?
Melanocytes
Which burns are partial thickness burns
1st and 2nd degree burns. Also if it blisters or eels it is a 2nd degree burn
what is Full thickness burn?
Burn the gets beyond the cutaneous membrane.
What are risks associated with a full thickness burn and why is it black.
They are black because they are charring fat. The risk is death by dehydration and infection.
What is a 4th degree burn and what is a cause?
A burn the gets into the muscle and bone. Often an electrical burn.
What is another name for a bed sore?
Decubitus ulcer
