EXAM 1 REVIEW (Unit 5) Flashcards
Describe the cells in epithelial tissue
Closely packed cells, arranged in sheets
Describe the anatomy (from top to bottom) of the epithelial tissue
(top to bottom)
-apical surface
-basement membrane
-connective tissue
_________ means no room for blood vessels
avascular
avascular depends on _____________ for oxygen
underlying connective tissue
what are the two types of epithelial tissue?
apical and basal
Epithelial tissue: top = _______ base = ______
top = apical, base = basal
What are the 3 cell shapes of the epithelial tissue?
- Squamous (squashed flat)
- Cuboidal (cubes)
- Columnar (columns- tall and cylindrical)
what is transitional tissue?
A tissue that can transform from cuboidal to flat, found in the bladder. THIS IS NOT A CELL SHAPE
-has a single row of flat cells
-found in alveoli, glomeruli, serosa, and endothelium
Simple squamous epithelium
what type of epithelium allows rapid diffusion of substances; secretes serous fluid
simple squamous epithelium
what is endothelium?
simple squamous that lines the inside of us (such as blood vessels, lymphatic vessels, ect)
- has a single row of tall, narrow cells
- inner lining of uterus, and intestinal tract
simple columnar epithelium
_______________
- may have goblet cells = mucus production
-may have microvilli
-may be ciliated
simple columnar epithelium
-multilayered epithelium with rounded surface cells that flatten when the tissue is stretched
-stretches to allow filling of urinary tract
- found in the urinary tract- bladder
Transitional Epithelium
What are the three basic elements of connective tissue?
Cells, ground substance, fibers
matrix =
ground substance and fibers
What are the three types of fibers?
- Collagen
- Elastic
- Reticular
Is cartilage vascular?
No
Describe the 3 fiber types:
- Collagen- thick (found in bone, cartilage, ligaments, tendons)
- elastic- thin (found in skin, blood vessel walls, lungs)
- reticular- medium sized (found in basement membrane, organs)
Connective tissue is usually ________ vascular
highly vascular
what tissue has a loose network of reticular fibers and cells?
reticular tissue
Reticular tissue is found in the ________________
lymph nodes, thymus, spleen, and bone marrow
What is adipose tissue for?
Energy storage, insulation, space filled cushioning
Large empty looking cells with thin margins, and the nucleus pressed against the cell membrane
adipose tissue
What are the major types of cartilage?
hyaline, fibrocartilage, elastic cartilage
________ is supportive connective tissue with a rubbery matrix
cartilage
___________ are immature and produce matrix.
Once mature and surrounded, they’re called _________
immature- chondroblasts
mature- chondrocytes
________ has no blood vessels
cartilage
Since cartilage has no blood vessels, ________ must bring in nutrients and remove wastes
diffusion
what are the 3 major types of blood cells
RBC’s, WBC’s and platelets
What are the two cells in the nervous system?
Neuron and neuroglia
What cells looks like an aardvark and conducts nerve impulses?
neuron (has a cell body with a nucleus) (axon and dendrites)
What cell provides support for the neuron and is the site of tumors?
neuroglia
What are the 3 types of muscle tissues?
- Skeletal
- Cardiac
- Smooth
This muscle tissue is striated (alternating light/ dark bands), voluntary, and found in skeletal muscles
skeletal muscle tissue
This muscle tissue is striated, involuntary, intercalated discs (aid in electrical conduction) and found in the heart
cardiac muscle tissue
This muscle tissue is non-striated, involuntary, and found in the intestines
smooth muscle tissue
