Integumentary & Skeletal System Flashcards
What composes the integumentary
Skin and accessory structures
Basic layers of the skin
Epidermis
Dermis
Hypodermis
What are the 5 layers of epidermis
Stratum corneum. Cells are dead, flat membranous sacs filled with keratin. Glycolipids in extracellular space make skin water resistant.
Stratum granulosum. Cells are flattened, organelles are deteriorating; cytoplasm full of granules.
Stratum spinosum. Cells contain thick bundles of intermediate filaments made of pre-keratin.
Stratum basale. Stem cells are actively dividing; some newly formed cells become part of the more superficial layers.
What are the accessory structures
Skin
Hair
Glands
2 layers of the dermis
The papillary layer is the superficial dermal region.
The reticular layer is the deepest skin layer. It contains dense irregular connective tissue
What are the two maturation process of keratin
Keratinization
Non-keratinization
What contains the dermis
Macrophages
Adipocytes
Fibroblast
Major parts of hair
Shaft
Hair follicle
Root
Hair bulb
2 types of glands
Sebaceous glands
Sweat glands
Types of sweat glands
Eccrine
Apocrine
Skeletal system includes
Joint
Ligaments
Cartilages
Bones
Skeletal system is divided into two parts
Axial
Appendicular
Types of bones
Compact bone
Spongy bone
Classification of bones
Long bone
Irregular bone
Flat bone
Short bone
The axial skeleton is divided into three parts
Cranium/skull
Vertebral column
Thoracic cage