skin and body membranes chapter 4 Flashcards
Epithelial Membrane
Epithelial Membrane Includes the cutaneous membrane, mucous membrane, and the serous membrane. Also called covering and lining membranes
Cutaneous Membrane
Cutaneous Membrane skin; consists of statified epithelium and a layer of areolar tissue reinforced by underlying dense irregular connective tissue. For protection and containment
Mucous Membrane
Mucous Membrane mucus-secreting membrane lining all body cavities or passages that communicate with the exterior. Ex: respitory sytem, reproductive system.
Serous Membrane
Serous Membrane produces a watery fluid and lines closed body cavities; parietal lines the outer part and visceral lines the inner. reduces friction inside body.
Serous fluid
Serous fluid lubricates the organs and allows them glide without friction
Peritoneum Membrane
surrounding the organs in the abdomen
Pleura membrane
surrounding the lungs
Pericardium
a double-layered serous membrane that surrounds the heart
synovial membranes
Loose connective tissue that lines the joint cavity
skin
Same as cutaneous membrane. Has sweat oand old glands, hair and nails serving mainly a purpose of protection
ntegumentary system
the organ system that forms a protective covering on the outside of the body (skin)
Keratin
hard, water-proof protein material found in the epidermis, hair and nails
epidermis
epidermis the outer layer of the skin covering made of stratified squamous epithelium
dermis
inner layer of skin made of connective tissue
subcutaneous tissue (hypodermis)
connective and adipose tissue layer just under the dermis
keratinocytes
Cells in the epidermis which produce keratin
stratum basale
stratum basale deepest epidermal layer made of a single row of cells that undergo rapid cell division
stratum spinosum
a layer (8-10) of the epidermis that provides strength and flexibility to the skin
Stratum granulosum
a layer of the epidermis that marks the transition between the deeper, metabolically active strata and the dead cells of the more superficial strata
stratum lucidum
the layer of epidermis immediately under the stratum corneum in the skin of the palms and soles
stratum corneum
the most superficial layer of the epidermis consisting of dead cells