1) loose (areolar & adipose)

2) dense/connective tissue proper (regular & irregular)

3) cartilage (hyaline, elastic, fibrocartilage)

4) bone (cancellous/spongy & compact)

5) blood 

What does connective tissue have an abundance of?

what different types are there in connective tissue?

extracellular matrix

1) collagen

2) elastic

3) reticular

collagen

where found?

function?

very thick fibrous protein

-found in extracellular matrix of connective tissue

-very strong

-most abundant fiber in body

extracellular matrix

function?

elastic fibers

made of what?

where found?

function?

fibers made of the protein elastin

-found in extracellular matrix of connective tissue

-provide the recoil (stretching) for tissue

-found in skin, lungs, blood vessels

reticular fibers

made of what?

 where found?

function?

fiers that are made of very thin fibrous protein

-found in extracellular matrix of connective tissue

-form a supportive network around lymphatic tissue

-found in spleen and lymph nodes

immature/mature cell type of cartilage connective tissue?

areolar & adipose

type of loose connective tissue

-attaches skin to underlying tissues

type of loose connective tissue

-2 types: yellow and brown

function of brown adipose tissue

where found?

generates heat

-found in armpits, neck, near kidneys, and in newborns

regular dense connective tissue

how arranged?

what does it form?

protein fibers are arranged in one direction to increase tissue strength

-forms tendons

tendon

connections of muscles to bones

-formed by regular dense connective tissue

irregular dense connective tissue

protein fibers are randomly arranged for stretching

hyaline cartilage

made of what?

location?

made of small collagen bundles

-in areas where support and flexibility is needed

-most abundant form of cartilage in body

-makes up costal cartilage of nose, ribs, trachea, articulating surfaces

areas where 2 structures come together to perform movement

-where hyaline cartilage is found

-ex: humerus and ulna 

fibrocartilage

made of what?

location?

made of large collagen bundles

-found in areas that withstand lots of pressure

-ex: knee joint, between the vertebrae

elastic cartilage

made of what?

location?

made of elastin and collagen

-found in areas that are rigid but flexible

-ex: external ear

what does bone connective tissue consist of?

living cells and a mineralized matrix

makes up most inner portions of bones

-this type of bone resembles a "honeycomb"

-made of trabeculae

-large open spaces filled with bone marrow

Trabeculae? 

what is between them?

flat, bony plates

-makes up cancellous/spongy bone

-large, open spaces filled with bone marrow

bony layers

-resembles a "bulls eye"

-what makes up compact bone

-hard and solid (no spaces)

what are action potentials?

what produces them?

electrical signals to control body functions via nervous tissue

-produced by neurons/nerve cells

one of 2 major types of nervous tissue cells

-actual conducting cells

-produce action potentials

one of 2 types of nervous tissue cells

-non-conducting support cells

-do NOT produce action potentials

-provide protection & insulation for neurons

what is muscle tissue responsible for?

how does it function?

all movement in the body

-contracting/shortening in response to electrical signals (action potentials)

How is muscle tissue described? (2 ways)

structure and function

-structure- striated or smooth

-function- voluntary or involuntary

has visible microscopic bands of actin and myosin

-skeletal and cardiac

non-striated, with no visible bands of actin and myosin

-smooth muscle

what are the 3 main types of muscle?

describe nucleus, structure, function of each

skeletal, cardiac, smooth

-skeletal- multi-nucleate, striated, voluntary

-cardiac- mono-nucleate, striated, involuntary

-smooth- mono-nucleate, smooth, involuntary

skeletal- packaged in sheets of connective tissue

attached to bone

cardiac- heart

smooth- in walls of hollow organs (small intestine, blood vessels)