Chapter 4 Pt. 4 Flashcards
What are the four different types of membranes?
1) Mucous Membrane
2) Serous Membrane
3) Synovial Membrane
4) Cutaneous Membrane
What are the characteristics of mucous membrane?
- line passageways that open to the exterior of the body
- some are specialized for absorption
- some secrete mucus that traps bacteria and viruses that could cause illness
What are the characteristics of serous membrane?
- line the thoracic and abdominal cavities and the organs within them
- secrete a fluid that lubricates the organs within these cavities
What are the characteristics of synovial membrane?
- line the cavities of freely movable joints (such as the knee)
- secrete a fluid that lubricates the joint
What are the characteristics of cutaneous membrane?
- covers the outside of the body
- is thick, relatively water-proof, and comparatively dry
Which membrane is also known as skin?
Cutaneous Membrane
What is the Integumentary System?
the skin and its derivatives (hair, nails, sweat glands, and oil glands); an outer covering
What are the functions of the skin?
- protection
- prevents excessive water loss
- temperature regulation
- production of Vitamin D
- detection
___________-cells in the skin that have a more active way fighting infection
macrophages
How does the skin regulate temperature?
flow of blood
Vitamin D, stimulates the absorption of _______ and _________
calcium
phosphorus
True or False: Skin is less than 5mm (1/25 of an inch) thick
True
True or False: Skin is your largest organs
True
What are the layers of the skin from outmost to inner?
1) epidermis
2) dermis
3) hypodermis (subcutaneous layer)
Which layer of skin is this: thin, outer layer that forms a protective barrier against environmental hazards
epidermis
Which layer of skin is this: inner layer that contains blood vessels, nerves, sweat and oil glands, and hair follicles
dermis
Which layer of skin is this: anchors the skin to the tissues of other organ systems that lie beneath
hypodermis (subcutaneous layer)
The epidermis is composed of several layers of _________ _____
epithelial cells
The outer surface of the epidermis is made of ____ ____ cells
dead skin
The dead skin cells of the epidermis are continuously being _____ and _______ due to keratin
shed
replaced
The dead skin cells of the epidermis are continuously being shed and replaced due to _______
keratin
What is keratin?
a tough, fibers protein; gradually replaces the cytoplasmic contents of the cells
________ gives the epidermis its protective properties
Keratin
The dermis consists primarily of ___________ ______.
connective tissue
Which layer of skin is this: contains blood vessels, hair follicles, oil glands, the ducts of sweat glands, sensory structures, and nerve endings.
dermis
True or False: The dermis wears away
False; the dermis does not wear away
The lower layer of the dermis consists of dense connective tissue containing ________ and _______ _______
collagen
elastic fibers
The lower layer of the dermis consists of dense connective tissue containing collagen and elastic fibers.
Why is this important?
this allows the skin to stretch and then return to original shape
Which layer of the skin is this: contains about half of the body’s fat stores
Hypodermis (subcutaneous layer)
in Infant’s and Toddlers, the hypodermis (subcutaneous layer), is called “_____ ____” and covers their whole body
“baby fat”
In women, the hypodermis (subcutaneous layer), accumulates in _______, ____, and ______
breasts
hips
thighs
In both sexes, the hypodermis (subcutaneous layer), accumulated in the _________ _________, and in the _____ of the _____ ____
abdominal hypodermis
sides
lower back
What are the procedures that can get hypodermis (subcutaneous layer) of skin removed?
liposuction freezing laser ultrasound radio frequencies
What are the major organ systems of the human body?
1) Integumentary System
2) Skeletal System
3) Muscular System
4) Nervous System
5) Endocrine System
6) Cardiovascular System
7) Lymphatic System
8) Respiratory System
9) Digestive System
10) Urinary System
11) Reproductive System
