New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Human Anatomy I Integumentary System

by: Katelyn Farris

Human Anatomy I Integumentary System BIO 2440

Marketplace > William Carey University > Biology > BIO 2440 > Human Anatomy I Integumentary System
Katelyn Farris

GPA 3.78

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These notes cover the integumentary system. Specifically: -What is included in the integumentary system -The function of the integumentary system -The skin and the two parts its made of: epiderm...
Human Anatomy I
Mr. Griffis
Class Notes
Biology, anatomy, Integumentary System
25 ?




Popular in Human Anatomy I

Popular in Biology

This 5 page Class Notes was uploaded by Katelyn Farris on Monday September 12, 2016. The Class Notes belongs to BIO 2440 at William Carey University taught by Mr. Griffis in Fall 2016. Since its upload, it has received 2 views. For similar materials see Human Anatomy I in Biology at William Carey University.


Reviews for Human Anatomy I Integumentary System


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/12/16
Integumentary System Integumentary System Includes: -Skin -Accessory structures: -sweat glands -oil glands -nails -hair -sensory receptors Function: -Protection -infection -microbes -water loss -Sensation -includes sensory receptors -Temperature Regulation -Vitamin D Reproduction -by exposure to sunlight -Excretion -some wastes come out by the sweat and oil glands The Skin -Covering of the outside of the body -2 Main Layers: 1. Epidermis -superficial layer -thinner layer -resists abrasion and water loss 2. Dermis -deeper layer -made of connective tissue -tough -connected to the subcutaneous tissue -used to be known as the hypodermis Epidermis -Made of stratified squamous epithelium -The cells of the epithelium are the main cell types called keratinocytes -3 types of specialized cells: 1. Melanocyte: secretes the skin pigment—melanin 2. Langerhans’ cell: phagocytes—engulf foreign material and microbes 3. Merkel Cell: associated with a nerve; sensory receptors that detect the lightest touch Keratinocytes -Regenerate really quickly; the new cells are produced on the bottom and are pushed out, as they are pushed out they die -As they die they fill with more keratin -Eventually they slough of -The dead layers protect Layers of Epidermal Epithelium 1. Stratum Basal -bottom layer -single layer of cuboidal cells -the cells that can continue to regenerate; undergoes mitosis 2. Stratum Spinosum -2nddeepest layer -spiny appearance 3. Stratrd Granulosum -3 layer -appears granular 4. Stratum Lucidum -4 layer -only in the palms and soles of the feet 5. Stratum Corneum -most superficial layer -thicker layer -completely dead Skin Cancers -Basal Cell Carcinoma -UV light damages Stratum Basal and starts growing into a tumor -can be cured most times -Squamous Cell Carcinoma -UV light afects the upper layers of the epidermis -can be cured -Melanoma -can be aggressive -melanocytes are afected Burns st -1 degree burns -epidermis is damaged -2nddegree burns -epidermis and parts of the dermis is damaged -3 degree burns -epidermis, dermis, and underlying tissue is damaged Skin Grafts -Full thickness -takes epidermis and dermis -Split thickness -take epidermis and parts of the dermis Dermis -Under epidermis -Made of connective tissue -Contains accessory structures -hair follicles -nerve endings -blood vessels -Has 2 layers 1. Papillary Layer -made of areolar tissue -contains papilli—finger-like projections that help tie the dermis to the epidermis -thinner layer 2. Reticular Layer -made of dense irregular connective tissue -deeper and thicker layer Subcutaneous Tissue -Tissue beneath the dermis -Not a part of the skin -Made of areolar connective tissue -Connects the dermis to the underlying tissue Hair -Made of epithelial tissue -2 main parts 1. Root -underneath the skin -Bulb: enlarged deepest part of the root -Matrix: located in the bulb and grows new cells for the hair -grows out of the hair follicle 2. Shaft -outside of the skin -has 3 layers of tissue 1. the very middle of the hair: Medulla 2. the layer on the outside of the medulla: Cortex 3. the outermost layer: Cuticle -Hair takes on the shape of the hair follicle -Grows for a while until eventually a new hair comes out behind the old one -Hair color is produced by melanocytes -Each hair follicle has a muscle attached to it called erector pili which makes the hair stand up Glands -Two major types in the integument 1. Sebaceous -multicellular -oil glands -secretes an oil called sebum -attached to the hair follicle and secretes into the hair follicle 2. Sweat Glands A. Merocrine Gland -major type: found all over the skin -secretes directly on to the skin surface -secretes a thin watery substance with electrolytes in it -coiled, tubular B. Apocrine Gland -found only in the axilla and groin region -secretes into the hair follicle -secretion is a mixture of oil and water -when secreted the body’s normal flora begins using it to aid in digestion thus resulting in B.O. Nails -Nail Root -beneath the skin -Nail Body -the part you can see -Nail Bed -the skin under the nail body -Nail Matrix -part that produces cells for the nail -Cuticle -the skin growing over the top of the nail body Sensory Receptors -Things that detect sensation -Merkel Cell is the only one in the epidermis -Sensory Receptors in the Dermis 1. Meissnar’s Corpuscle -encapsulated -superficial in dermis -detects touch 2. Pacinian Corpuscle -deep in the dermis -encapsulated -superficial in dermis -detects touch 3. Free Nerve Endings -not encapsulated -detect hot, cold, and pain 4. Root Hair Plexus -free nerve ending around hair follicle -detects movement of the hair


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Janice Dongeun University of Washington

"I used the money I made selling my notes & study guides to pay for spring break in Olympia, Washington...which was Sweet!"

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.