The Integumentary System
5
The Integumentary System
FOCUS: The integumentary system consists of the skin, hair, nails, and a variety of glands. The epidermis of the skin provides protection against abrasion, ultraviolet light, and water loss, and produces vitamin D. The dermis provides structural strength and contains blood vessels involved in temperature regulation. The skin is attached to underlying tissue by the hypodermis, which is a major site of fat storage.
CONTENT LEARNING ACTIVITY
Hypodermis
❛❛The hypodermis is not part of the integumentary system.❜❜
Match these terms with the correct statement or definition:
Fat Hypodermis 1. Sometimes called subcutaneous tissue. 2. Loose connective tissue that attaches the skin to underlying bone or muscle. 3. Functions as padding and insulation. 4. Responsible for some of the structural differences between men and women.
The hypodermis contains about half the body's stored fat. Measuring the thickness of the hypodermis is a technique used to estimate total body fat.
1
❛❛The dermis is dense connective tissue that forms the deep layer of the skin.❜❜
Match these terms with the correct statement or definition:
Cleavage lines Dermal papillae Striae 1. Directions in which the skin is most resistant to stretch. 2. Lines visible through the epidermis produced by overstretching of the dermis. 3. Blood vessels in this structure exchange nutrients and waste products with the epidermis. 4. Projections from the dermis into the epidermis; produce fingerprints.
Dermis
❛❛The epidermis is stratified squamous epithelium separated from the dermis by a❜❜ basement membrane. A.
Epidermis
Match these terms with the correct statement or definition:
Callus Corn Keratin Keratinization
Lipids Stratum basale Stratum corneum
1. The process that changes the shape and chemical composition of epidermal cells. 2. The strata of the epidermis that produces new cells by mitosis. 3. The strata of the epidermis that contains dead,
The Integumentary System
FOCUS: The integumentary system consists of the skin, hair, nails, and a variety of glands. The epidermis of the skin provides protection against abrasion, ultraviolet light, and water loss, and produces vitamin D. The dermis provides structural strength and contains blood vessels involved in temperature regulation. The skin is attached to underlying tissue by the hypodermis, which is a major site of fat storage.
CONTENT LEARNING ACTIVITY
Hypodermis
❛❛The hypodermis is not part of the integumentary system.❜❜
Match these terms with the correct statement or definition:
Fat Hypodermis 1. Sometimes called subcutaneous tissue. 2. Loose connective tissue that attaches the skin to underlying bone or muscle. 3. Functions as padding and insulation. 4. Responsible for some of the structural differences between men and women.
The hypodermis contains about half the body's stored fat. Measuring the thickness of the hypodermis is a technique used to estimate total body fat.
1
❛❛The dermis is dense connective tissue that forms the deep layer of the skin.❜❜
Match these terms with the correct statement or definition:
Cleavage lines Dermal papillae Striae 1. Directions in which the skin is most resistant to stretch. 2. Lines visible through the epidermis produced by overstretching of the dermis. 3. Blood vessels in this structure exchange nutrients and waste products with the epidermis. 4. Projections from the dermis into the epidermis; produce fingerprints.
Dermis
❛❛The epidermis is stratified squamous epithelium separated from the dermis by a❜❜ basement membrane. A.
Epidermis
Match these terms with the correct statement or definition:
Callus Corn Keratin Keratinization
Lipids Stratum basale Stratum corneum
1. The process that changes the shape and chemical composition of epidermal cells. 2. The strata of the epidermis that produces new cells by mitosis. 3. The strata of the epidermis that contains dead,