Little cell fragments that secrete clotting factors are called:
A membrane consists of what two components?
epithelium supported by a connective tissue
List three places we might find mucous membrane in the human body.
lining the digestive tract
lining most of our airways
any cavity of the body exposed to the environment
Where in the human body do we encounter serous membrane?
any cavity of the body NOT exposed to the environment
What do we commonly call our cutaneous membrane?
Where in the human body will you find synovial membrane?
lining the joint capsules
List the three functions of the integumentary system that synthesize materials.
production of vitamin D
production of melanin
List the five functions of the integumentary system involving regulation and protection.
protection against the environment
excretion and absorption
detection of cutaneous sensation
The bottom 2/3 of a hair are known as the:
The upper 1/3 of a hair is called the:
The parts of a hair below the skin are known as the:
List the three outer three layers of the hair from outside to inside.
connective tissue sheath
outer root sheath
inner root sheath
List the three layers of a hair proper from outside to inside.
List the three phases of hair growth.
anagen - growth phase
catagen - regression phase
telogen - resting phase
Where are apocrine secretions released to?
onto a hair follicle
Where are eccrine gland secretions released to?
onto the eptithelial cell surface
List, in order, the layers of the epidermis.
It takes approximately ____ to _____ days for a cell to move from the stratum basale to the bottom of the stratum corneum. Once it reaches this point it will be another _______ days until it gets sloughed off.
How often does cell division occur in the epidermis?
every 19 days
In which layer do the epidermal cells undergo apoptosis?
List the five organelles found in epidermal cells.
What is the last layer in which all of the cells are still living?
Which layer of the epidermis performs most, or all, of the cell division?
What is hemoglobin and what role does it play in skin color?
a pigment that contains iron and binds to oxygen giving skin a pink undertone
Describe the two stages of skin tone changes in response to UV radiation.