Laboratory 11 : Integumentary System Flashcards
What does the integumentary system include?
Skin, hair, nails, and cutaneous glands.
Skin, hair, nails, and cutaneous glands. These are apart of the _____ system.
Integumentary.
What are the layers of the skin?
Epidermis, Dermis.
What is the epidermis?
The superficial layer of the skin.
The superficial layer of the skin is the ____?
Epidermis.
What is the dermis?
Deep layer of the skin.
The deep layer of the skin is the ____?
Dermis.
What does the epidermis consist of?
Keratinized stratified squamous epithelium.
The _____ is the layer of the skin consisting Keratinized stratified squamous epithelium.
Epidermis.
What are the two layers of the dermis?
Papillary region, dense irregular.
What does the dermis consist of?
The papillary region consisting of areolar connective tissue, and a thicker deeper area of dense irregular tissue.
What is beneath the dermis?
Hypodermis. (Subcutaneous layer)
What is the subcutaneous layer composed of?
Adipose connective tissue and some areolar connective tissue.
Where does hair grow from?
Grows through a depression from the epidermis.
What does the hair posess at the base?
Papilla.
What is the papilla?
Contains a network of capillaries that suppy the nutrients for the cell division required for hair growth.
What is the arrector pilli muscle?
Attached to the folicle, has the ability to make hair standu up.
Attached to the folicle, has the ability to make hair standu up. This is called the ____
Arrector pilli muscle
What does a sebacous gland do?
Secretes oily sebum into hair folicles, which keeps the hair and epidermal surface pliable and somewhat water proof.
Where are the sweat glands?
Are distributed over most regions of the body and consist of two types of glands.
What are the two types of sweat glands?
Meocrine, apocrine.
Where are the meocrine glands?
on the palms, soles of feet, foreheads.
What do meocrine glands do?
Their secretions occur during hot days, workouts, stress. They help to prevent us from overheating.
Their secretions occur during hot days, workouts, stress. They help to prevent us from overheating. What are the glands being described?
Meocrine.
Where are the apocrine sweat glands?
Most abundant in the axillary and genital regions.
What do the apocrine glands do?
Sweat ducts open into the hair follicles and become active at puberty. Secretions increase during stress and pain.
Sweat ducts open into the hair follicles and become active at puberty. Secretions increase during stress and pain. What are the glands being described?
Apocrine.
When do apocrine gland become active?
Puberty.
What are the modified sweat glands of the integumentary system?
Cerminous glands of the external auditory canal and mammary glands of the breasts.
Where is the stratum corneum?
Most superficial layer of skin.
Describe stratum corneum?
Many layers of keratinized dead epithelial cells, appear scaly and flattened resists water loss, absorption and abrasion.
Where is the stratum lucidum?
Between stratum corneum and stratum granulosum on soles and palms of thick skin.
Describe stratum lucidum?
Cells appear clear, nuclei, organelles and plasma membrane are no longer visible.
Where is the stratum granulosum?
Beneath the stratum corenum or beneath the stratum lucidum of thick skin.
Where is the stratum spinosum?
Beneath the stratum granulosum?
Where is the stratum basale?
Deepest layer.
What does the numeric CLGSB stand for?
CICI LIKES GIRLS SO BITCHY Corneum Lucidum Granulosum Spinosum Basale
What is a melanocyte?
Produces the color in our skin protects against UV rays.
