30 Questions
What is the primary function of the skin?
Protecting the body from the environment
Which of the following is NOT a component of the skin?
Vitamins
How many nerve endings are present in one inch of skin?
1,000
What is the approximate percentage of total body weight that the skin typically accounts for?
15% to 20%
Which layer of the skin acts as an insulator for maintaining body temperature?
Subcutaneous tissue
What is the purpose of the skin appendages?
To perform sensory functions and thermoregulation
What is the main function of the epidermis in the skin?
Makes new skin cells and provides a protective barrier
Which protein is primarily responsible for forming the layers of the skin?
Keratin
What is the main function of the dermis in the skin?
Supplies blood and keeps the skin in touch with the environment
Which layer of the skin is also known as the subcutaneous layer?
Hypodermis
What type of epithelium is the epidermis composed of?
Stratified squamous keratinized epithelium
Which of the following does NOT describe a characteristic of the dermis?
Production of sweat by sweat glands
What type of sensory receptor responds to pressure or vibration?
Mechanoreceptor
Where are Meissner Corpuscles located?
Dermal papillae
What is the specific function of Pacinian Corpuscles in the skin?
Sensitivity to vibration and pressure
Which part of the body is NOT covered by hair?
Lips
What does the hypodermis consist of?
Loose connective tissue
What is the main function of the superficial fascia?
Binds the skin loosely to adjacent organs
Which layer of the skin is described as the thick outermost layer of dead cells devoid of nuclei and organelles?
Stratum Corneum
What is the primary type of cell found in the epidermis, constituting 90% of epidermal skin cells?
Keratinocytes
Which cell type is responsible for the production of melanin pigment in the skin?
Melanocytes
Which layer of the skin is described as a highly refractive zone seen only in very thick skin?
Stratum Lucidum
Where are Langerhans cells located in the skin?
Reticular Layer
What is the function of dermal papillae in the skin?
To increase adhesion between the epidermis and dermis
What is the function of the hair papilla?
Provides a capillary network to sustain the hair follicle
Which part of the nail is considered the hidden part of the nail?
Nail root
What covers the nail root of a nail?
Eponychium
Where are the matrix, medulla, and cortex located in a hair?
Hair bulb
Which part of the hair covers the hair papilla?
Hair root
What is the main component of nails?
Keratin
This quiz covers the layers of the skin, their characteristics, functions, as well as the various appendages of the skin including glands, receptors, hairs, and cells. Learn about the function of these skin appendages and understand how the skin plays a crucial role in the body's overall health and protection.
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