The Integumantary System The Integumentary System | Page 4

What is this system?

Arrector pili muscle: little muscles in the hair follicle that make hair to stand.

Capillaries: Smallest body blood vessels and connect arterioles and venules

Hair: simple structure without important functions that is made of protein called keratin

Sebaceous gland: microscopic glands that create sebum that lubricates the skin and make it waterproof.

Touch receptor: the receptors that give signals to the brains that some part of the body is touching something

Sensory nerve: the nerve that passes impulses of receptors to the brain.

Pressure receptor: the receptor that catches the impulses of nerve that identifies when something is getting pressure and respond to the changes of the wall tension

Apocrine sweat gland: secrete hormones to the bloodstream , in case of then women are the ones in charge of the milk producing

Hair Follicle: the structure where the hair came from of the skin

Subcutaneous artery and vein: carry blood towards the heart they are critical in the circulatory system

Motor nerve: A motor nerve which carries impulses from the central nervous system ,that means that any time someone needs to move, the nerve is involved.

Merocrine sweat gland: are glands that extend to the skin to They help to regulate the body’s overall temperature

Epidermis: First layer of the integumentary system, it is made up of stratified squamous epithelium. This layer contains Keratin and Keratinocytes (Family of fibrous structural proteins, Keratinocytes are the principal cells of the epidermis), Melanocytes (Produce melanin), Melanin (provide protection against sun’s UV radiation and activates vitamin D. It also has dead cells that are replaced with living cells to form our skin.

Dermis: Intermediate layer that contains Collagen (support epidermis), Elastin (stretch the skin when move muscles or gain weight), Blood Vessels (nourish cells of skin), and Sensory Receptors (receive energy or stimuli from environment).

Hypodermis: Bottom layer of the integumentary system. It is a adipose and connective tissue.

References:

http://www.wisegeek.com/what-are-merocrine-sweat-glands.htm

. N.p.. Web. 28 Jan 2014. <http://en.wikipedia.org/wiki/Arrector_pili_muscle>.

. N.p.. Web. 28 Jan 2014. <http://en.wikipedia.org/wiki/Capillary>.

WebMD, . N.p.. Web. 28 Jan 2014. <http://www.webmd.com/skin-problems-and-treatments/picture-of-the-hair>.

Brannon, H.. N.p.. Web. 28 Jan 2014. <http://dermatology.about.com/od/glossarys/g/sebaceous_gland.htm>.

http://en.wikipedia.org/wiki/High_pressure_receptor_zones

http://www.wisegeek.com/what-are-apocrine-glands.htm#slideshow

. N.p.. Web. 28 Jan 2014. <http://www.ivy-rose.co.uk/HumanBody/Skin/Hair-Follicle.php>.

http://biology.answers.com/biochemistry/veins-and-their-function-in-the-circulatory-system

Smith, S. E. S.. N.p.. Web. 28 Jan 2014. <http://www.wisegeek.com/what-is-a-motor-nerve.htm>.

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