Chapter 4-Skin And Body Membranes (Integumentary System)

Question 0

Functions of the skin:

1) insulates, cushions, & protects body.
2) ______ ________ ______
3) regulates heat loss
4) ____ ___ __ _______ ______
5) manufactures proteins
6) _______ _______ _
7) _______ ________

Answer 0

2) prevents water loss
4) acts as an excretory system
6) synthesizes Vitamin D
7) contains sensors

Question 1

Integumentary system:

Also called the _______ membrane.

Answer 1

Cutaneous

Question 2

Structure of the skin

-Composed of two types of tissues:

Answer 2

A. Epidermis
&
B. Dermis

Question 3

The Epidermis is made of:

P.S. Epidermis is capable of keratinizing

Answer 3

Stratified squamous epithelium

Question 4

The dermis is made of:

Deep to the dermis is the subcutaneous tissue made of: adipose tissue

Answer 4

Dense Connective Tissue

Question 5

Epidermis

5 layers of strata:

Answer 5

1) stratum basale
2) stratum spinosum
3) stratum granulosum
4) stratum lucidum
5) stratum corneum

Question 6

Epidermis
Stratum basale
Defined as:

Answer 6

Lies closest to the dermis.

Question 7

Epidermis
Stratum spinosum
Defined as:

Answer 7

Lies just above the basale.

Question 8

Epidermis
Stratum granulosum
Defined as:

Answer 8

Lies just above the spinosum

Question 9

Epidermis
Stratum lucidum
Defined as:

Answer 9

• Flattened cells that have died and keratinized.
• Occurs only where there is no hair and is extra thick.
• Lies above granulosum.

Question 10

Epidermis
Stratum corneum
Defined as:

Answer 10

20-30 layers thick.
Abundant with keratin.
Provides a durable overcoat for melanin and melanocytes

Question 11

Epidermis
Stratum corneum
Melanin:
A ______ that _____ in color from yellow> _____> black

Answer 11

Pigment, ranges, brown

A pigment that ranges in color from yellow to brown to black

Question 12

Epidermis
Stratum Corneum
Melanocytes:
Special _____ that produce ________, found chiefly in the stratum _______.

Answer 12

Cells, melanin, basale

Special cells that produce melanin, found chiefly in the stratum basale

Question 13

Dermis
Defined as: YOUR _____.
Strong, stretchy _______ that helps to hold
the body together. Made of _____ _____
connective tissue.

Answer 13

HIDE, envelope, dense, fibrous

Question 14

Two major regions of Dermis:

Answer 14

1) Papillary Layer

2) Reticular Layer

Question 15

Dermis
Papillary Layer
Defined as:

Answer 15

Upper dermal region.

Question 16

Dermis
Papillary Layer
Characteristics of:

Answer 16

• Uneven.
• Has fingerlike projections from its superior surface (called dermal PAPILLAE)
• {[They indent the epidermis causing fingerprints.}

Question 17

Dermis
Reticular Layer
Defined as:

Answer 17

The deepest skin layer

Question 18

Dermis
Reticular
Characteristics of:

Answer 18

Contains:
Blood vessels
Sweat & oil glands
Deep pressure receptors