Bio 210 lecture exam 2 Complete Solutions
Integumentary system - ️Comprises the skin and its derivatives.
The integument - ️Refers to the skin covering the entire body. - ️Also known as the cutaneous membrane.
Dermatology - ️Is the scientific study and treatment of the integumentary s...
Bio 210 lecture exam 2 Complete Solutions
Integumentary system
- ✔️Comprises the skin and its derivatives.
The integument
- ✔️Refers to the skin covering the entire body.
- ✔️Also known as the cutaneous membrane.
Dermatology
- ✔️Is the scientific study and treatment of the integumentary system.
The integument
- ✔️Is the body's largest organ.
Layers of the skin
- ✔️The epidermis is composed of stratified squamous epithelium.
- ✔️The dermis is the deep layer, primarily consisting of dense irregular connective tissue.
,- ✔️The subcutaneous layer, although not considered part of the true skin (integument), is part of the
integumentary system. It lies deep to the dermis and consists of areolar and other connective tissues,
also known as the hypodermis or superficial fascia.
Thick skin
- ✔️Found on the palms of hands, soles of feet, and surfaces of fingers and toes.
- ✔️Contains all five layers of the epidermal strata and has sweat glands.
- ✔️Lacks hair follicles and sebaceous glands.
Thin skin
- ✔️Lacks a stratum lucidum but has sweat glands, hair follicles, and sebaceous glands.
Hemoglobin
- ✔️Is an oxygen-binding compound that gives a bright red color when oxygenated.
- ✔️Becomes more visible when blood vessels dilate.
Melanin
- ✔️Pigment that can be black, brown, tan, or yellow-brown shades.
,Melanocytes
- ✔️Cells where melanin pigment is produced and stored.
UV light
- ✔️Stimulates melanin production.
- ✔️Results in darker-skinned individuals producing more and darker-colored melanin.
Carotene
- ✔️Yellow-orange pigment acquired from vegetables.
- ✔️Is converted to vitamin A within the body.
Nevus
- ✔️Also known as a mole, it's a harmless overgrowth of melanin-forming cells.
Freckle
- ✔️Yellowish-brown spots that represent localized areas of increased melanocyte activity.
Hemangioma
, - ✔️A skin discoloration caused by a benign blood vessel tumor.
Capillary hemangiomas
- ✔️Usually present at birth and disappear in childhood, often called strawberry-colored birthmarks.
Cavernous hemangiomas
- ✔️May last a lifetime and are known as port-wine stains.
Friction ridges
- ✔️Complex arches and whorls found on fingers, palms, soles, and toes.
- ✔️Formed by large folds and valleys of the dermis and epidermis.
- ✔️Help increase friction on contact.
- ✔️Each individual has a unique pattern of these ridges.
Dermis
- ✔️Is deep to the epidermis and composed of connective tissue.
Two layersof the dermis ✔️papillary and reticular layer
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 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 bestscores1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.56. You're not tied to anything after your purchase.
