Epithelial
The protein that makes stratified epithelial tissues resistant to friction.
What is keratin?
The blood cell responsible for oxygen transportation.
What are erythrocytes?
The excitable main component of muscle tissue.
What is a myocyte?
Ground substance and protein fibers.
What are the two main components of the ECM?
The study of the normal structure of tissues.
What is histology?
Secretory cells accumulate their product in their cytosol and only release their product upon rupture (and death) of the cell.
What is holocrine secretion?
What is adipose tissue?
Cardiac, smooth, and skeletal.
What are the three types of muscle tissue?
What comprises ground substance?
The replacement of dead/damaged cells with cells of the same type; tissue returns to normal functional level upon completion of process.
What is regeneration?
The layer of the basement membrane manufactured by the connective tissue deep to the epithelial tissue, consisting of reticular fibers and ground substance.
What is the reticular lamina?
Loose connective tissue, dense connective tissue, reticular tissue, and adipose tissue; cartilage bone (osseous), and blood.
What are the four basic types of connective tissue proper and the three types of specialized connective tissues?
What are neurons?
1) Providing tissue with resistance to tensile and compressive forces;
2) directing cells to their proper places within a tissue;
3) regulating development, mitotic activity, and cellular survival;
4) holding cells in their proper positions.
What are the functions of the ECM?
Thin sheets of one or more tissues that line a body surface cavity with all of the following functions:
1) anchor organs in place;
2) barrier;
3) immunity;
4) secretion of various substances.
What is a true membrane?
Glands that secrete substances through ducts into a body cavity or body exterior vs. glands that lose surface connection (duct) during development and thus secrete substances into extracellular fluid.
What are exocrine vs. endocrine glands?
Fibroblasts, adipocytes, mast cells, and phagocytes.
What are connective tissue resident cells?
Dark line separating individual cardiac muscle cells that's not found in skeletal muscle; contains gap junctions and modified tight junctions, allowing heart muscle to contract as a unit.
What is an intercalated disc?
Integral proteins that link neighboring cells, allow for materials in ECF to pass through the space between cells.
What are desmosomes?
Linings of all passages that open to the outside of the body; comprised of epithelium and basement membrane (lamina propria) as well as contain goblet cells to produce and secrete mucous.
What are mucous membranes (mucosae)?
1) Polarity (re: apical surface);
2) specialized contacts (re: tight junctions/desmosomes);
3) supported by connective tissue;
4) avascular but innervated;
5) regeneration.
What are the five important characteristics of epithelia?
Varying levels of vascularity, diversity of cell types, substantial amount of ECM.
What are the three characteristics of connective tissue?
1) Secure neurons and blood vessels in place;
2) monitoring composition of ECF;
3) speeding up rate of nerve impulse transmission;
4) circulating fluid surrounding brain and spinal cord.What are neuroglial cells?
Small pores formed by protein channels between adjacent cells that allow small substances to flow freely between each cell's cytoplasm vs. integral proteins of adjacent cells' plasma membranes that are locked together, forming a seal around apical perimeter.
What are gap junctions vs. tight junctions?
Nervous tissue, skeletal muscle tissue, and cardiac muscle tissue.
What tissue types heal by fibrosis?