Integumentary system
10 important questions on Integumentary system
What is the speciality that studies the function of the integumentary system?
What is the epidermis composed of?
It contains four principle types of cells
Keratinocytes
Melanocytes
Intraepidermal macrophages
Tactile epithelial cells
What is the hypodermis/ Subcutaneous?
Hypo (under)
Consists of areolar and adipose (fat tissue)
Fibres that extend from dermis anchor skin to subcutaneous layer.
Serves as storage depot for fat (adipose tissue)
Contains large blood vessel that supply the skin,
contains nerve ending called lamellated corpuscles that are sensitive to pressure.
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What are each hair composed of?
What are nails made from? Name the three parts of the nail.
Each nail consists of nail body, nail root and a free edge.
What are some of the functions of the integumentary system? (hint 6)
Storage of blood
protection
Cutaneous sensations
excretion and absorption
Systhesis of vitamin D
How does skin contribure to thermoregulation?
And other way is adjusting the flow of blood in the dermis.
How does the dermis act as a blood reservoir?
Name 7 ways that the skin provides protection for the body.
Increases normal cell replacement when required maintains the integrity of the body. Helps heal wounds.
Elimination helps protect the body from a build up of poisonous substances.
Retention of body fluids prevents dehaydration
Waterproof barrier precents harmful fluid in the environment from entering the body.
Production of sebum: sebum contains bacterial chemical that can destroy surface bacteria.
Sweating Helps main body temperature and its acidic PH can inhibit the proliferation of bacteria.
What is aging characterised by? When to most age related changes begin? Where do they impact in the skin? What are some risk factors that accelerate age-related changes?
About 40
in the proteins in the dermis.
Prolonges exposure to the sun
Smoking
alcohol abuse
drug abuse
poor diet
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