skin plays several important roles for our bodies. 1.skin helps to ________ body temperature. 2.skin...

SKINBy: Annette Miles

Skin plays several important roles for our bodies.

1. Skin helps to ________ body temperature.2. Skin ________ inner tissue.3. Skin produces vitamin ___.4. Skin senses _____ and touch.5. Skin helps get rid of _______

products.

regulate

protectsD

painwaste

Skin has two main layers: The __________ and the _________.epidermis dermis

The epidermis has ___ distinct layers. The deepest layer is where the new cells are _____. The top layer is composed of _____ skin. These cells are continually being

shed.

5

madedead

Cross section of the epidermis

Cross section of the epidermis

Color the epidermis tan and label.

The pigment that determines skin and hair color is ________. The

pigment is found in a single layer of epidermal cells. The cells that

produce melanin are the ___________.

melanin

melanocytes

Color the melanocyte black and label.

The layer of skin just beneath the epidermis is the _______.

The dermis contains blood vessels, nerves, hair follicles, sweat glands, and sebaceous

glands.

dermis

Color the dermis pink and label.

The _____________ are a small, sack-shaped gland that release _____ (fatty) liquids onto the hair follicle (the oil softens the skin). They are

usually located beside a _________.

sebaceous glands

hair follicle

oily

Color the sebaceous glands red and label.

Sweat glands are a tube-shaped gland in the dermis

that produce _______. Sweat is a liquid that includes small

amounts of _________, ______, and ___________.

sweat

ammoniaurea electrolytes

Sweat does more than just remove waste. It also helps

keep the body from ____________. The body can get rid of extra heat through

____________.

overheating

evaporation

Color the sweat gland green and label.

The ____________ is a tube-shaped sheath that surrounds

the part of the hair that is under the skin. The hair is

nourished by the follicle at its base. This is also where the

hair grows.

hair follicle

Color the hair follicle blue and label.

The ___________ is the part of the hair that is above the skin.

hair shaft

Color the hair and hair shaft gray and label.

The ________________ are nerve receptors that respond

to pressure and vibration; they are oval capsules of sensory nerve fibers located in the subcutaneous fatty tissue.

pacinian corpuscle

Color the pacinian corpuscle purple and label.

The hair _____________ is a muscle that is connected to

each hair follicle and the skin. It contracts in response to cold and fear resulting in an erect hair and a “__________” on

the skin.

erector muscle

goosebump

Color the erector muscle orange and label.

The ____________ are tubes that carry blood. Arteries bring oxygenated blood ______ the heart and lungs. Veins return

oxygen depleted blood back to the heart and lungs.

blood vessels

from

Color the blood vessel red and label.

The ________________ is the fatty tissue

located under the

dermis.

subcutaneoustissue

Color the subcutaneous tissue brown and label.

Review:

Guess the following parts of the skin.

http://images.google.com/imgres?imgurl=http://www.ratbehavior.org/images/Epidermis.jpg&imgrefurl=http://www.ratbehavior.org/

CoatTypes.htm&usg=__VkvUF9O4ifm6Sy_BYqkJ73Qfixc=&h=372&w=516&sz=60&hl=en&start=5&itbs=1&tbnid=KD3jKdWqfbpiBM:&tbnh=94&tbnw=131&prev=/images%3Fq%3Depidermis%26hl%3Den%26sa

%3DG%26gbv%3D2%26tbs%3Disch:1http://z.about.com/d/dermatology/1/0/e/4/Epidermis_Full_lucid.jpg

http://www.riversideonline.com/source/images/image_popup/sn7_skinlayers.jpg

http://www.clearskinacne.com/wp-content/uploads/skin-epidermis-dermis-hair.jpg

http://www.pgbeautygroomingscience.com/assets/images/wosc/Chapter%201/Special%20Skin%202.jpg

http://missinglink.ucsf.edu/lm/IDS_101_histo_resource/images/172-1x-Hair_follicle_labelled.jpg

http://www.riversideonline.com/source/images/image_popup/sn7_hairfollicle.jpg

http://images.google.com/imgres?imgurl=http://www.immediart.com/catalog/images/big_images/SPL_E_P720213-Hair_follicles,_SEMSPL.jpg&imgrefurl=http://www.immediart.com/catalog/product_info.php%3Fproducts_id

%3D288&usg=__OGcnxzsTcBkLTvtQZLdccjXV40=&h=301&w=350&sz=69&hl=en&start=6&itbs=1&tbnid=BZwQCNRnzu8OHM:&tbnh=103&tbnw=120&prev=/images%3Fq%3Dhair%2Bfollicles%26hl%3Den%26gbv%3D2%26tbs%3Disch:1

RESOURCES

http://cas.bellarmine.edu/tietjen/Laboratories/Bio%20Pix%204%20U/Image102.gif

http://www.supertightstuff.com/wp-content/uploads/2009/02/goosebumps.jpg

http://www.dmk-uk.com/images/treatments/skin-diagram-acne.gifhttp://myhealth.ucsd.edu/library/healthguide/enus/images/media/medical/hw/h9991258.jpg

http://www.lib.uiowa.edu/hardin/mD/pictures22/dermnet/21_basal_cell_carcinoma_cancer_imiquimod0822057.jpg

http://science.nationalgeographic.com/staticfiles/NGS/Shared/StaticFiles/Science/Images/Content/epidermis-sb3849-sw.jpg

http://www.enchantedlearning.com/subjects/anatomy/skin/