tissue: the living fabric

anatomy stuff../

what is the most abundant and widely distributed tissue in the body

connective tissue

what tissue’s main goal is support

connective tissue

what are the three type of connective tissue

connective tissue proper, cartilage, bone, blood

List the jobs of connective tissue

binding and support, protection, insulation, transport

connection tissue consists primarily of

extracellular matrix

what are the 3 types of fibers

collagen, elastic, reticular collagen

what protein is the most common and tough

collagen

what fibers are stretchy

elastic

what fibers are thinner and form a “net” for strength

reticular

what are embryonic stem cells that CT cells are comprised of

mesenchyme

what is comprised of extracellular fibers and ground substance for most CT

extracellular matrix

what cells release histamine and heparine after injury/infection

mast cells

what consumes damages cells/invaders

macrophages

example of macrophage

white blood cell

what are always present in CT to secrete fibers/ground substances and makes the extracellular matrix?

fibroblasts

what cells make 3 types of cartilage

chondrocytes

what is the space that remains after the chondrocyte dies

lacunae

what are bone-forming cells

osteoblasts

which tissue can carry electrical impulse across long or short distances

nervous tissue

how does nervous tissue carry electrical impulses

through neurons

are neurons short or long living

long living

nervous tissue cells have both

conductivity and irritability

which tissue forms boundaries between environments

epithelial tissue

what are the jobs performed by the epithelium

protection, absorption, filtration, excretion, secretion, sensory perception

outside surface of epithelial tissue is called

apical

inside surface of epithelial tissue is called

basal

simple means

single layer

stratified means

many layers

squamous cells are shaped like

fried eggs

cuboidal cells distinguishable quality is

length, width, height are similar

columnar cells distinguishable quality is

length and width is similar, height is many times more

groups of cells that are similar in structure and perform a common function are called

tissues

what type of cellular joining is described:

cells held so close to each other even water can’t get through. they line waterproof passages

tight junctions

example of a tight junction

intestines

what type of cellular joining is described:

heavily anchored protein plates attached to each other like velcro. made for tissues to withstand shearing forces (lateral force)

desmosomes

example of desmosomes

skin

what type of cellular joining is described:

have holes through proteins that allow ions to move cell to cell but still being held close together so that water can’t get through.

gap junctions

example of a gap junction

cardiac muscles

basic groups of tissues

epithelial, connective, muscle, nervous