What id the function of the Epithelial tissue
cover/line
What are the common characteristics of all epithelial tissue
avascular, regeneration, supported by connective tissue, made of mostly cells
Name the different types of Epithelial tissue
Simple, Stratified, Glandular
What are the subcategories of simple epithelial tissue
simple squamos, cuboidal, columnar, pseudostratified
Describe simple squamos
flat cells, diffusion, lungs
Describe simple cuboidal
cube-like cells, secrete and absorb, kidney tubules
Describe simple columanr
secrete absorb, digestive
Describe pseudostratified
secrete(mucus), trachea
Startified Squamos
protection, outside of skin, lining of mouth
Function of connective tissue
supports, insulates, transports, protects
subcatagories of connective tissue
proper (loose, dense) cartilage, bone, blood
loose connective tissue
areolar, adipose, reticular
areolar
wraps/cushions organs
adipose
provides reserve food feul. Under skin
reticular
forms soft skeleton. Spleen
dense connective tissue
dense reg, dense irreg, elastic
dense reg connective tissue
attaches muscle to bone. ligaments and tendons
dense irreg connective tissue
withstands tension. Capsule surrounding joint
elastic
allows recoil after stretching. Arteries, aorta, heart
Kinds of cartilage
hyaline, elastic, fibrocartilage
hyaline cartilage
supports/ reinforces. covers end of long bones
elastic cartilage
maintains shape and structure. ear
fibrocartilage
absorbs shock. intervertebral discs
bone
supports/protects
blood
transports. blood vessels
types of muscle tissue
skeletal, cardiac, smooth
skeletal muscle
voluntary
cardiac muscle
propels blood. walls of heart
smooth muscle
propels objects through passageways. hollow organs
nerve tissue
conducts and controls. transmits signals. brain and spinal cord
types of tissue repair
regeneration, fibrosis
regeneration
same kind of tissue replaces destroyed tissue
fibrosis
connective tissue replaces destroyed tisue (scar tissue)
steps of tissue repair
1. inflammation
2. building new tissue/ organization restores blood supply
3. regeneration and fibrosis
what regenerates well, moderate, and what has no regenerative capacity
well: epithelial tissues, areolar conn tissue, dense irreg conn tissue, blood-forming tissue
Moderate: smooth muscle and dense reg conn tissue
none: cardiac muscle, nervous tissue of brain and spinal cord
polarity of epithelial
exhibit apical-basal polarity
apical surface
(upper free) exposed to exterior or cavity. May be smooth and slick. Most have microvilli. some have cilia
basal surface
(lower, attached) scaffolding for cell migration in wound repair. glycoprotein and collagen fibers lie adjacent
GLANDS
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STRUCTURE ELEMENTS OF CONNECTIVE TISSUE
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