Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Mekdes Beyene

Anatomy Unit 10

QuestionAnswer
What is the skin? The skin is the body’s largest organ that covers and protects all internal structures.
What system does the skin belong to? It’s part of the integumentary system, which includes skin, hair, nails, and glands.
What are the main functions of the skin? Protection, temperature control, sensation, vitamin D production, and waste removal.
What are the three main layers of skin? Epidermis, dermis, and hypodermis (also called the subcutaneous layer).
What is the epidermis? The thin, outer layer made mostly of epithelial cells that constantly shed and renew.
What is the dermis? The thicker middle layer contains nerves, blood vessels, and glands
What is the hypodermis? The deepest layer is made of fat and connective tissue that insulates and cushions the body.
What is keratin? A tough, waterproof protein produced by keratinocytes that strengthens skin, hair, and nails.
What are keratinocytes? Cells in the epidermis make keratin and form the outer protective barrier.
What are melanocytes? Cells in the epidermis that produce melanin, the pigment that gives skin its color.
What is melanin? A pigment that protects the skin from harmful UV rays and gives it color.
What are Langerhans cells? Immune cells that detect and fight off bacteria and viruses entering the skin.
What are Merkel cells? Special cells that sense light touch and pressure on the skin.
What are the five layers of the epidermis (from deep to superficial)? Stratum Basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum.
What happens in the stratum basale? New skin cells are created through mitosis and pushed upward.
What is the stratum corneum? The outermost layer made of dead, keratin-filled cells that constantly flake off.
What is the main tissue type in the dermis? Dense connective tissue with collagen and elastic fibers.
What do the dermis contain? Blood vessels, sweat glands, oil glands, sensory receptors, and hair follicles.
What are the two layers of the dermis? The papillary layer (upper) and the reticular layer (deeper).
What is the papillary layer responsible for? Provides nutrients to the epidermis and forms fingerprints.
What is the function of the reticular layer? Gives the skin strength and elasticity due to collagen and elastin fibers.
What are sebaceous glands? Oil glands that secrete sebum, which keeps skin soft and waterproof.
What are sweat glands? Glands that release sweat to cool the body and remove waste.
What are the two types of sweat glands? Eccrine glands (for cooling) and apocrine glands (in armpits and groin, active during stress).
What is hair made of? Keratinized cells that grow from hair follicles in the dermis.
What is the function of hair? Protects from UV rays help regulate body temperature and provide sensory input.
What gives hair its color? Melanin produced by melanocytes in the hair bulb.
What causes goosebumps? The arrector pili muscle contracts, making hairs stand up when cold or scared.
What are nails made of? Hard keratin that protects the fingertips and aids in grasping small objects.
How does the skin help regulate temperature? Through sweating and widening or narrowing of blood vessels (vasodilation/vasoconstriction).
How does the skin sense the environment? It contains sensory receptors for touch, temperature, pain, and pressure.
How does the skin help the body get rid of waste? Sweat glands remove salts, water, and small amounts of urea.
How does the skin help make vitamin D? When sunlight hits the skin, it triggers vitamin D production for bone health.
What are common skin color factors? Melanin, carotene (yellow-orange pigment), and hemoglobin (red pigment from blood).
Why is skin repair important? It heals cuts and burns, preventing infection and maintaining the body’s protective barrier.
Created by: Twin0324
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards