Tissues

tissues

group of cells of similar structure that perform a common function

basic definition of epithelial tissues

covering, boundaries, protection, secretion, absorption, filtration

basic definition of connective tissues

support, protects, binding

basic definition of muscle tissues

movement and contraction

basic definition of nervous tissues

control & internal communication

avascular

no blood cells

innvervated

it contains neurons

apical surface

boards open space

basal surface

next to underlying connective tissue

basal lamina

an adhesive sheet that holds basal surface of epithelial cells to underlying cells

identify the cell & describe it

simple squamous - single layer of flattened and scale like cells; found in the kidney, lungs, heart, and lining of ventral body cavity

identify the cell & describe it

simple cuboidal - single layer of cube-like cells with large, spherical central nuclei; found in kidney tubules, ducts and ovary surface

identify the cell & describe it

simple columnar - single layer of column-shaped (rectangular) cells with round to oval nuclei; found in digestive tracts, gallbladder, excretory ducts, small bronchi, uterine tubes, and some of the uterus

identify the cell & describe it

stratified squamous - two or more layers of thin cells with round/oval nuclei; found in the esophagus, mouth, vagina, and skin

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stratified cuboidal - two layers of cube cells; found in sweat glands, mammary glands, and salivary glands

identify the cell & describe it

stratified columnar - several layers; basal cells usually cuboidal and superficial cells elongated; small amounts in male urethra and in large ducts

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pseudo-stratified - single layer of column-shaped (rectangular) cells with round to oval nuclei; found in trachea, upper respiratory tract, sperm carry ducts, and large glands

identify the cell & describe it

transitional - several layers; basal cells with stratified cuboidal and squamous: found in ureters, bladder, and part of the urethra

Gland

one or more cells that make and secrete am aqueous fluid called a secretion

endocrine glands

ductless glands that produce homronese

exocrine glands

secrete products onto body surfaces

ductless glands

secretions not released into duct

types of unicellular exocrine glands

mucous cells and goblet cells

mucin

a sugar-protein that can dissolve in water to form mucus, a slimy protective, lubricating coating

what type of gland is this?

goblet

what type of duct is this and where can it be found?

simple tubular - intetsinal glands

what type of duct is this and where can it be found?

simple branched tubular - stomach (gastric) glands

what type of duct is this and where can it be found?

simple alveolar - no human gland

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simple branched alveolar - sebaceous (oil) glands

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compound tubular - duodenal glands of small intestine

what type of duct is this and where can it be found?

compound alveolar

what type of duct is this and where can it be found?

compound tubuloalveolar

merocrine glands

secrete their products by exocytosis

holocrine glands

the entire secretory cell ruptures, releasing secretions and dead cell fragments

major functions of connective tissue

binding and support, protecting, insulating, storing reserve fuel, and transporting substances within the body (blood)

four main classes of connective tissue

connective tissue proper, cartilage, bone, blood

fibroblasts

in connective tissue proper; make protein subunits

chondroblasts

secrete matrix in cartilage

osteoblasts

secrete matrix in bone

four characteristics of connective tissue

mesenchyme, free cells, varying vascularity, extracellular matrix

what type of tissue is this

loose connective proper areolar

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loose connective tissue adipose

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loose connective tissue reticular

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dense connective tissue regular

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dense connective tissue irregular

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dense connective tissue elastic

what type of cartilage is this?

hyaline cartilage

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elastic cartilage

what type of cartilage is this

fibrocartilage

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bone

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blood

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skeletal muscle tissue

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cardiac muscle tissue

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smooth muscle tissue

what type of tissue is this?

nervous tissue