Lecture 2 Flashcards
What type of epithelial tissue is called
endothelium when it lines vessels and mesothelium when it lines cavities?
Simple squamous
Which epithelium is usually a secretory type?
Simple cuboidal
Which epithelium is usually absorptive?
Simple columnar
Which epithelium is often ciliated (found in respiratory and urinary systems)?
Pseudostratified columnar
Stratified squamous can either be ____ or ____
keratinized or non-keratinized
Stratified epithelium
often display different
levels of cell maturation
with more stamina cells
located in the proximity
of the basal lamina and
more differentiated cells
closer to the ____
surface
Epithelial cells are highly proliferative cells –during development, a single layer of cells
can proliferate, invaginate and generate ___
glands
Exocrine glands maintain a connection to the surface (duct) to reverse the product into
the ____ of lining cavity
lumen
Endocrine glands detach from the surface and reverse their products into the _____
blood stream
Exocrine glands are composed of a ___ and ___
secretory unit and duct
What three shapes can secretory units take on?
1) Tube shaped
2) Sac like
3) Tube shaped with dilated ends
Three types of secretory products?
1) Mucous (thick, viscous)
2) Serous (watery)
3) Mixed
What are the two types of duct systems?
Branched and unbranched
What is an example of a unicellular Gland
goblet cells of the small intestine
Simple tubular ducts are found in the ____
intestine
Simple branched tubular ducts are found in the ____
stomach
What is the role of glandular epithelia?
Production, storage and secretion of specific molecules
Three types of exocrine glands?
1) Merocrine
2) Apocrine
3) Holocrine
Connective tissue is made up of cells and ECM. What is ECM made of?
protein fibers and ground substance
True or False: In connective tissues, cells are not contiguous with one another but dispersed in abundant ECM produced by the cells.
True
What are the function of connective tissue?
-Bind together (fills spaces between cells, tissue, organs)
-Compartimentalization (surrounds organs and divides them into smaller units)
-Support
-Protection/ transport
-Storage
True or False: The below cells are a part of the connective tissue?
Fibroblast
Plasma cell
Adipocyte
Macrophage
Mast cell
Reticular cell
True
What are the two main types of connective tissue?
Proper and specialized
What are the two type of proper connective tissue?
Loose vs. Dense
What are the specialized connective tissue? (4)
1) Adipose
2) Cartilage
3) Bone
4) Blood
What are the two types of dense tissue?
1) Irregular
2) Regular
Which type of connective tissue has much ground substance, but little collagen? It also supports lamina propria, is well-vascularized, and fills space between muscle, nerve, and blood vessels?
Loose connective tissue
Which connective tissue has MORE collagen fibers than ground substance?
Dense Irregular Connective Tissue
____ is less cellular, less flexible, and more stress resistant than loose CT
Dense irregular CT
In ____ Connective Tissue, thick collagen fibers run
parallel to each other and fibroblast nuclei lined up as car in traffic
Dense Regular CT
____ CT is a dense connective tissue
rich in elastic fibers
Elastic CT
