-
What is the largest organ of the body?
Skin
-
Epidermis
The outermost protective layer of dead karatinized epithelial cells.
-
Dermis
The underlying layer of of connective tissue, with blood vessels, nerve endings, and the associated skin structures.
-
Subcutaneous Tissue
(Hypodermis)
Sits underneath the dermis.Connects skin with superficial muscles, contains large deposits of fat.
-
Layers of the epidermis
- Stratum Corneum
- Stratum Lucidum
- Stratum Granulosum
- Stratum Spinosum*
- Stratum Basale*
*Stratum Spinosum & Basale are part of the Stratum Germinativum (where Mitosis occurs)
-
Where does mitosis take place in the epidermal layers?
- Stratum Spinosum & Basale
- or Strarum Germinativum
-
What is Melanin and what does it do?
Melanin is a protein pigment found in the epidermal cells that protects against radiation from the sun.
-
What is the Dermis composed of?
Fibrous connective tissue, blood vessels, sensory nerve endings, hair follicles, and glands.
-
What function does sweat serve?
It regulates body temperature
-
Sweat glands that are most widely distributed along the body are known to be ______. They are the ones that produce sweat to regulate body temp.
Eccrine
-
Sweat glands mainly in the armpit and groin areas are known to be _______.
Apocrine
-
Why does sweat that comes from the apocrine sweat glands cause body odor?
because the sweat secretions contain bits of cytoplasm from the secreting cell attracting bacteria causing B.O
-
What does a sebaceous gland release?
Oil secretions (Sebum)
-
What is the purpose of Sebum or oil secretions?
To lubricate the skin
-
Oil is produced by _________ secretion , in which whole cells of the glands are part of the secretion. These glands are susceptible to becoming clogged and attracting bacteria, particularly during ___________.
-
Hair & Nails are composed of a Protein called _________.
Keratin
|
|
