Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
38 Cards in this Set
- Front
- Back
|
t/f, endocrine & exocrine glands develop from epithelial tissue?
|
true!
|
|
|
basement membrane consists of?
|
collagen IV
proteoglycans laminin (a protein) |
|
|
what are proteoglycans?
|
carbohydrate-rich proteins
|
|
|
describe simple squamous epithelium.
|
-thin and flattened
-easily diffusible -line alveoli of lungs & the blood vessels |
|
|
describe simple cuboidal epithelium.
|
-single layer of cube-shaped cells
-line kidney tubules -function in secretion & absorption |
|
|
describe simple columnar epithelium.
|
-line the gut & the uterus
-protection, secretion, absorption -microvilli & goblet cells |
|
|
describe pseudostratified columnar epithelium.
|
-goblet cells, cilia
-in respiratory tubes |
|
|
describe stratified squamous.
|
-protective
-may be keratinized -bottom layer always dividing -in mouth, throat, vagina, anal canal- not keratinized |
|
|
describe transitional epithelium.
|
-lines urinary bladder & tract
-expandable lining to bladder |
|
|
examples of exocrine glands
|
sweat & salivary glands
|
|
|
what are merocrine glands?
|
serous (watery secretions) or mucous (thick secretions) glands
|
|
|
holocrine glands?
|
secrete entire cells that then disintegrate to release products
|
|
|
apocrine glands
|
-secrete same as merocrine
|
|
|
what does connective tissue consist of?
|
cells in a matrix
|
|
|
what does matrix consist of?
|
fibers & ground substance
|
|
|
5 types of cells in connective tissue
|
fibroblasts
macrophages white blood cells mast cells chondrocytes/osteocytes |
|
|
mast cells?
|
cytoplasm stuffed with histamine, heparin, & protease granules
produce substances used for signaling other cells inflammatory response |
|
|
neutrophils
|
phagocytic white blood cells
|
|
|
structure of collagenous fibers
|
-white fibers
-consist of 3 intertwined amino acid chains, where every 3rd is a glycine |
|
|
elastic fiber structure?
|
yellow fibers made of elastin & fibrillin
|
|
|
ground substance
|
made of proteoglycans; bind water
|
|
|
loose (areolar) connective tissue
|
-under skin, between muscles
-made mainly of fibroblasts, collagen & elastic fibers -has blood vessels -elastic, some tensile strength |
|
|
adipose
|
fat storing cells AKA adipocytes
beneath skin, around kidneys cushion, insulate |
|
|
white adipose tissue
|
stores energy as triglycerides
|
|
|
brown adipose tissue
|
thermogenic; regulates body temperature - important in infants
|
|
|
dense regular fibrous connective tissue
|
few cells
mainly collagen fibers poor blood supply found in tendons, ligaments |
|
|
dense irregular fibrous connective tissue
|
mainly collagen fibers
"basket weave" strength in all directions poor blood supply dermis, sheathes covering muscles & nerves, in the sclera of the eye |
|
|
elastic connective tissue
|
yellow elastic fibers
walls of heart & major blood vessels; ligamenta flava between vertebrae |
|
|
Marfan Syndrome
|
mutation in gene for fibrillin
abnormalities of connective tissue |
|
|
reticular connective tissue
|
many fibroblasts
very thin collagen fibers stroma of spleen, liver, lymph nodes |
|
|
hyaline cartilage
|
rigid; very fine collagen fibers
ends of ones, nose, trachea can be replaced by bone |
|
|
elastic cartilage
|
more flexible
many elastic fibers ears & larynx |
|
|
fibrous cartilage
|
tough
collagen fibers shock absorber between bones (e.g. knee) |
|
|
basic unit of compact bone
|
osteon
|
|
|
skeletal muscle
|
striated, unbranched, multinucleated, voluntary
|
|
|
smooth muscle
|
non-striated, unbranched, uninucleated, involuntary
|
|
|
cardiac muscle
|
striated, branched, uninucleated, involuntary
|
|
|
intercalated discs
|
intercellular junctions between cells in cardiac muscle
|
