8/16/2019 INTEGUMENTARY SYSTEM.docx

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INTEGUMENTARY SYSTEM

functions:

BARRIER AGAINST PATHOGENS, UV LIGHT

REGULATE TEMPERATURE- SWEATING, HAIR

INFORMATION GATHERING- SENSORY FUN!TIONS

VITAMIN " PRO"U!TION FROM SUN

ANATOMY:S#IN AN" HAIRS

NAIL- FROM #ERATIN, PROTE!TS FINGERS AN" TOES

EPI"ERMIS: VERY TOP LAYER, !OMPOSE" OF "EA" !ELLS$PRO"U!ES #ERATIN, REPLA!E" EVERY %-& WEE#S$!ONTAIN MELANO!YTES- !ONTAIN MELANIN THAT "ETERMINESS#IN TONE$ MORE MELANIN MORE "AR# S#IN$

"ERMIS:UN"ERNEATH EPI"ERMISNERVESVESSELS- VASO!INSTRI!TION OR VASO"ILATION

SWEAT GLAN"S- OILY SUBSTAN!E THAT #EEPS THE EPI"ERMISFLE'IBLE AN" WATERPROOF$ #ILLS BA!TERIAHAIR FOLLI!LES- MA"E UP OF #ERATIN, PROTE!T "IRT FROMENTERING$

S#IN PROBLEMS:

A!NE

HIVES- ALLERGI! REA!TION TO FOO" AN" ME"I!INE- URTI!ARIA

S#IN !AN!ER- E'!ESSIVE ESPOSURE TO UV LIGHT-BASAL !ELL !AR!INOMA-MELANOMA-S(UAMOUS !ELL !AR!INOMA