nose,skin and tongue powerpt

8/12/2019 Nose,Skin and Tongue Powerpt

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Nose, Tongue, and Skin

By: Alma Bella U. Guevara


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NOSE

Divided into two narrow passages by a thin wall of soft bone.

Filter the air that goes into the lungs

NOSTRILS

two openings of the nose where air enters. It lets air in and out of our

lungs.

NASAL CAVITY

allows the passage of air in and out of the nostrils.

MUCUSthe membrane secretes a sticky fluid (fly paper)

MUCUS MEMBRANE

sufficiently supplied with blood vessels close to the surface which

warms the air.

CILIA

hair-like tissues (broom)

Filter or sift dust and other particles in the air

OLFACTORY NERVE

send message to the brain


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Protection- mechanical, chemical,bacterial

Body temperature regulation

Prevent water loss Metabolic- synthesize vitamin D

Cutaneous Sensation

Blood reservoir Excretion

Prevent UV damage


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Skin has three layers:

1. The epidermis, the outermost layer of skin, provides awaterproof barrier and creates our skin tone.

2. The dermis, beneath the epidermis, contains tough

connective tissue, hair follicles, and sweat glands.

3. The deeper subcutaneous tissue (hypodermis) is made offat and connective tissue.

The skins color is created by special cells called melanocytes,

which produce the pigment melanin. Melanocytes are located

in the epidermis.

The skin is the largest organ of the body, with a total

area of about 20 square feet. The skin protects us

from microbes and the elements, helps regulate body

temperature, and permits the sensations of touch,

heat, and cold.


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The tongue is a muscular organ in the mouth.The tongue is covered with moist, pink tissue

called mucosa. Tiny bumps called papillae give

the tongue its rough texture. Thousands of tastebuds cover the surfaces of the papillae. Taste

buds are collections of nerve-like cells that

connect to nerves running into the brain.


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Five Basic Tastes

1.Sweet

2.Salty3.Sour

4.Bitter5.Umami-results from tasting

glutamate (present in MSG)


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1.Hard - touch

2.Spicy - taste3.Sceniceyes

4.Scented - smell

5.Whispered- ears6.Palatable- taste

7.Grainy- touch

8.Talkative- ears

9.Ugly- eyes

10.Burnt- smell


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ANSWER KEY:

1.EYESdim, circular, bright, spotless, steep.

2. EARSscream, gurgle, patter, buzz, yell.

3. NOSEacrid, aromatic, rotten, perfumed, musty.

4. TONGUE - alkaline, bland, fruity, peppery, bitter, tart, raw.

5. TOUCHabrasive, sticky, smooth, fragile, icy, prickly, spongy, elastic.


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Thank you for your

attention!

nose,skin and tongue powerpt

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