2. Chapter 4

3. Applied Learning Outcomes
Use the terminology associated with the
integumentary system
Learn about skin structure, function,
appendages, glands, and care
Understand the aging and pathology of
the integumentary system
Chapter 4 – The Skin and Its Parts

4. Overview
The integumentary system is a dynamic
continuous body covering composed
of:
• Blood vessels
• Connective tissue structures
• Glands
• Hair
• Nails
• Skin
Chapter 4 – The Skin and Its Parts

5. The Integumentary System
The skin has three
distinct layers: the
epidermis, the
dermis, and the
hypodermis.
Chapter 4 – The Skin and Its Parts

6. The Integumentary System
The four main functions of the integumentary
system are:
• Protection against environmental damage
• Heat regulation – maintain a constant internal
temperature
• Sensation – receiving stimuli from the
environment
• Waste excretion
Chapter 4 – The Skin and Its Parts

7. Wellness and Illness over
the Life Span
Aging is due to:
• intrinsic factors
• extrinsic factors
One’s lifestyle can accelerate aging.
Pathology can be categorized as:
• degenerative
• genetic
• infectious
Chapter 4 – The Skin and Its Parts

8. Summary
The skin is composed of three distinct layers: the
epidermis, the dermis, and the hypodermis
(subcutaneous)
It contains many appendages, including several
kinds of glands, nerves, nails, and hair
The functions of the skin are: to protect the body
from damage, help regulate body temperature,
detect sensory cues, and assist in waste
removal
Chapter 4 – The Skin and Its Parts