IBEC state Exam with Correct Solutions
2024
Keratin - Answer -a protein substance that helps protect the skin against invasion
keratinization - Answer -the process of living cells moving upward and changing to dead calls
the two main zones of the epidermis - Answer -1. horny zone
2. germinal z...
IBEC state Exam with Correct Solutions 2024 Keratin - Answer -a protein substance that helps protect the skin against invasion keratinization - Answer -the process of living cells moving upward and changing to dead calls the two main zones of the epidermis - Answer -1. horny zone 2. germinal zone horny zone layers - Answer -1. stratum corneum 2. stratum lucidium 3. stratum granulosum (act as a barrier against invasion and water absorption) stratum corneum - Answer -outer most layer of the skin where dead skin cells are constantly shed stratum lucidum - Answer -second layer of the skin that is transparent due to eleidin and only on the palms of your hands and soles of your feet stratum granulosum (granular layer) - Answer -bottom layer of the horny zone. THICKEST on the soles of the feet and palms of the hands, THINNEST on the eyelids. Forms calluses. Germinal Zone Layers - Answer -1. stratum spinosum 2. stratum germinativum stratum spinosum - Answer -prickle cell layer stratum germinativum (basal cell layer) - Answer -the LOWEST layer of the epidermis, in contact with the dermis. cell division (mitosis) occurs here Stratum Mucosum - Answer -the malpighian layer The Dermis - Answer -the living layer or "true skin" Meissner's Corpuscles - Answer -nerve endings sensitive to touch in the papillary layer The Reticular Layer - Answer -the THICKEST layer of the skin made of collagen fibers Appendages of the Reticular layer - Answer -arrector pili muscles blood vessels fat cells hair follicles lymph vessels nerve endings sebaceous glads - oil sudoriferous glands - sweat As the blood supply circulates through the skin it... - Answer -transports the oxygen -rich blood and nutrients essential for growth; reproduction; and tissue repair of the skin, hair, and nails Lymph glands produce - Answer -lymph lymph - Answer -white blood corpuscles and plasma contains waste products, salts, and nitrogenous wastes sudoriferous glands - Answer -the sweat glands under the control of the sympathetic nervous system Apocrine Glands (smelly) - Answer -in the pubic and axillary (underarms) area excrete pheromones eccrine glands (everywhere) - Answer -all over the body more in the foreheads, palms of hands, and soles of feet Sebaceous glands (oil glands) - Answer -all over the skin mainly appendages to the hair follicles and open into the shafts of hair follicles. more on the scalp, T -zone, and cheeks produce sebum (oil) are of the philosebaceous unit influenced by the endocrine system most active during puberty the philosebaceous unit - Answer -the hair arrector pili muscle - Answer -an appendage that is attached to the hair follicle partially responsible for heat regulation subcutaneous layer (adipose tissue) - Answer -a layer of fatty tissue at the base of the dermis layers of the hair - Answer -1. cuticle (protection) 2. cortext (pigment) 3. medulla (strength of the hair) Anagen - Answer -hair's active growing phase, the hair follicle is at its deepest catagen - Answer -the hair follicle separates from the dermal papilla shortest growing phase (only a few days -a few weeks) telogen - Answer -resting stage, when papilla reaches the bulge functions of the skin (PHRASES) - Answer -1. protection 2. heat regulation 3. absorption 4. secretion 5. excretion 6. synthesis of vitamin D Sebum - Answer -prevents drying and cracking and prevents bacteria and germs from entering the skin and the body germinal layer (stratum germinativum) - Answer -contains melanin -producing melanocytes that protect the body from harmful ultraviolet radiation adipose tissue in the subcutis - Answer -cushions the body from falls, protects against minor trauma, and provides a source of energy heat regulation - Answer -the body adjusts to counteract environmental changes and to maintain a safe and appropriate temperature through EVAPORATION, PERSPIRATION, RADIATION, and INSULATION
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AdelineJean. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
