Cell Science
The control center of cell activities is called the:
nucleus
Providing the skin with its strength and flexibility are the collagen and:
elastin fibers
The study of the skin's functions is referred to as:
skin physiology
All of the following structures and appendages make up the dermis EXCEPT:
a.hair follicles
b.sweat glands
c.blood vessels
d.adipose tissue
d.adipose tissue
What is the active growing stage of hair called?
Anagen
The outer surface of the cell is known as the:
Cell Membrane
The acid mantle keeps the surface of the skin slightly acidic, which helps:
prevent pathogens/harmful bacteria
What is the normal pH range of the skin?
4.5-5.5
The layer of the epidermis that is shed and replaced continually is the:
stratum corneum
Which hair structure supplies nourishment to the hair bulb?
Papilla
Groups of cells that are the same kind of cells make up what?
tissue
How does the skin maintain a constant body temperature?
heat regulation/thermoregulation
Which system of the body is made up of the skin, hair, nails and glands?
integumentary system
Sweat is produced by what gland?
sudoriferous
What stage is the shortest hair growth cycle?
Catagen
What is another name for histology?
microscopic anatomy
Which of the following skin functions is referred to as detoxification?
excretion
The skin is composed of three main layers that include the epidermis, dermis and:
subcutaneous
Which layer of the skin lies in the upper layer of the dermis and is rich in blood vessels and capillaries?
papillary layer
Excessive amounts of terminal hair found in women in areas of the body where men usually get hair, such as the face, is a condition called:
Hirsutism
The colorless, gel-like substance containing water, salt and nutrients that cells are composed of is referred to as:
protoplasm
Which type of cells help protect the body from infection and are found in the stratum spinosum layer?
Langerhans cells
The epidermis is primarily composed of:
keratinocytes
Which glands are sac-like and attached to hair follicles?
sebaceous glands (oil glands)
The hair follicle, the hairstrand, the arrector pili muscle and the sebaceous gland make up the:
pilosebaceous unit