Human Pysiology And Diseases Flashcards
(18 cards)
What are body tissues?
Collections of cells with related functions
4 main tissue types:
Epithelial,
Muscular,
Connective,
Neural
10 Organ systems of the body:
Nervous system, Endocrine system, Respiratory system, Urinary system, Immune system, Circulatory system, Digestive system, Reproductive system, Musculoskeletal system
What is homeostasis?
The ability of the body to maintain a stable internal environment.
Intracellular and interstitial fluids are separated by…
the plasma membrane of the cell.
Interstitial fluid and plasma are separated by…
the capillary wall.
What are body tissues?
Assemblies of cells that work together.
Extracellular matrix is composed of…
Fibrous proteins (collagen) and proteoglycans (polysaccharides that are linked to proteins).
Adhesion junctions function is…
Anchoring cells to one another or to the extra cellular matrix.
Tight junctions function is
Forming a barrier that prevents movement of molecules from one cell to another.
Gap junctions function is…
Forming intracellular channels that allow molecules to pass between cells.
Cdherin proteins function is to…
Bind on the adjacent cell actin to form an adhesion junction.
Occludin proteins function is to…
Bind on the adjacent cell forming tight seals.
Connexion proteins function is to…
Form intracellular channels between cells to form a gap junction.
What are the three connective tissue types and their subtypes?
Fibrous (loose, dense),
Supportive (cartilage, bone),
Fluid (blood, lymph)
What is basal lamina composed of?
Is extra cellular fluid secreted by epithelial cells.
What is epithelial tissue?
Packed cells that are connected with adhesion, gap and tight of junctions.
What are the 5 types of epithelium cells?
Exchange, Transport, Ciliates, Protective and Secretory epithelium.
