The Integumentary System A. Skin`s or cutaneous membrane

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The Integumentary System
A. Skin’s or cutaneous membrane functions
1.
2.
3.
4.
5.
B. There are _____ layers of the skin
1. Epidermis
a.
b.
c.
2. Dermis
a.
b.
c.
d.
3. Hypodermis
a.
b.
Epidermis
A. The epidermis has ____ layers of __________ ________________ __________________
_______, which are ______, scalelike, and are arranged in __________ or _________.
1. Stratum basale: ___________ layer
a.
b.
c.
2. Stratum ___________: several layers thick
a.
b.
c.
3. Stratum ______________: ____ to _____ layers thick
a.
b.
c.
4. __________ _____________: thin
a.
b.
5. ____________ _____________: outermost
a.
b.
c.
B. The ______________ contains:
1. ____________________: produces keratin (fibrous protein)
a.
b.
c.
d. In the ____________ _____________
2. ____________________: produce pigment ______________
a.
b.
3. Epidermal _____________ _________ macrophages
4. _________ _________: epidermal/dermal junction
a.
Dermis
A. __________ major skin level
B. Contains:
1. __________________ tissue
2. _______________ & _________________
3. Richly supplied by ___________, ________ ___________ & __________
__________.
4. Hair __________, ___________ & ___________ ________________.
5. _______________ __________ give ___________ & _________________.
a. ________: stretch marks
b. Blister: separation of _________________/_________
-
C. There are _______ layers of the dermis
1. ______________ layer: thin and superficial
a. ______________ ______________________ ______________
b. Dermal ______________: peg like projections
c. Dermal ________: palms and feet
2. _____________ layer: 80% of the dermis
a.
Subcutaneous Layer
A. Lies beneath the __________
1. Consists of _________ ______________ _____________ and _________ tissue that
connects the skin to the surface muscles
2. Rich in __________ & ________ endings
2. Serves as:
a.
b.
Accessory Organs
A. _______________ glands: sweat glands
1. Two main functions
a.
b.
2. Our sweat is _____________
a. The ________ is created when the sweat mixes with the ___________ on the
skin surface.
B. _______________ glands: ____ _________
1.
2. A substance known as ___________ is secreted along the _________ ___________
and directly onto the skin through ________ that open directly onto the ______________.
3. Influenced by _________ __________________ and during adolescence.
a.
C. Hair
1. A long, _________ filament of _________ that consists of
a.
b.
c.
2. Hair gets it color from _________________ that surround the _________ of the hair
shaft.
D. Nails
Burns
A. Three degrees of burns
1.
2.
3.
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