ch4 connective, muscle, nervous tissue

connective tissue

function: provides body with support and structure, connects structures together, stores energy, participates in immune response

mesenchyme

all connective tissue develops from the same embryonic tissue

extracellular matrix and cells

what is connective tissue made up of

ground substances and fibers

what is extracellular matrix made up of

what connective tissue is made up of

consists of cells, ground substances and fiber

elastic fiber

made for felxibility

reticular fiber

made for skeletal structure

collagen fibers

made for strength and structure

connective tissue proper have blood supply?

yes; vascular

fibroblast

immature cells that build protein fibers

loose connective tissue

holds organs in place and cushions tissues

areolar tissue

packing material to bind, support and cushion different organs or tissues

where areolar is found

in dermis and hypodermis, lining mucous membranes and digestive, respiratory

adipose tissue

insulation, protection, and energy storage

triglycerides

adipose tissue contains large amounts of this

where adipose tissue is found

packed around internal organs; the liver and intestines in abdomen

reticular tissue

support network for soft organs

where reticular tissue is found

lymph nodes, spleen, and tonsils

dense connective tissue

provides high strength for resistance and pulling forces

dense regular tissue

withstand pulling forces

what kind of tissue run all together in the same direction, like rope

dense regular

what dense regular tissue is found

in tendons, ligaments, and muscle tendons

dense irregular tissue

withstand forces pulling multiple directions

what kind of tissue runs in all difference ways

dense irregular

where is dense irregular found

in dermis of skin

elastic tissue

made for more flexible and to stretch and recoil

what kins of tissues is made of elastic fibers

elastic tissue

where is elastic tissue found

in the lining of large arteries- like heart arteries

does cartilage have blood or nerve supply?

avascular and lacks nerve supply

chondroblast

cartilage builders; immature cells

chondrocytes

cartilage cells; mature cells

what is the most abundant cartilage

hyaline cartilage

hyaline cartilage

reduces friction between boney surfaces

where is hyaline cartilage located

at the end of bones, tip of nose

elastic cartilage

provides structure/ lots of flexibility; made up of elastic fibers

where is elastic cartilage located

in the ear

fibro cartilage

withstand compression force; strongest of all 3; made of think collagen fibers

where is fibrocartilage located

the disc pads between each bone of body

is bone have blood or nerve supply?

highly vascular and innervated

bone tissue

provides more strength and less flexibility

osteoblast

bone building cells; immature cells

osteocytes

bone cells; mature cells

blood tissue

is made up of extracellular matrix- blood plasma

erythrocytes

red blood cells that transfer oxygen and remove CO2

leukocytes

white blood cells that are immune responsive

platelets

cell fragments that assist with blood clotting

muscle tissue

specialized for contraction, movement and shorten to exert force

is muscle tissue have blood or nerve supply?

yes vascular and innervated

skeletal muscle

voluntarily control, tell it to contract

what attaches to the bones and allows movement

skeletal muscles

how many nuclei does skeletal muscles have?

more than one nuclei in one cell

cardiac muscle

not voluntarily, and pumps blood in and out of the heart

how many nuclei are found in cardiac muscle

1-2 nuclei per cell

smooth muscle

not voluntarily; moves substances throughout the body

where is smooth muscle located

within hollow structures like intestines, blood vessels

nervous tissue

regulates and controls body functions

neurons

generate/contract nerve pulses

neuroglial (glial cells)

support/nourish neurons

regeneration

replacement of damaged tissue with new tissue of the same kind of tissue

good regeneration types of tissues

epithelial tissue, bone, areolar connective tissue, dense irregular connective tissue, and blood

moderate regeneration tissues

smooth muscle, dense irregular connective tissue

weak regeneration tissues

skeletal muscle, cartilage; cardiac muscle and nervous tissue

fibrosis

replaces tissue with dense fiber tissue

Simple squamous function

Allows materials pass by diffusion or filtration

Simple squamous located

Air sacs of lungs, linings of heart, blood vessels

Simple cuboidal function

Secretion and absorption

Simple cuboidal located

In glands pancreas, salivary glands and liver

Simple columnar function

Absorption, secretion of mucus, enzymes, etc

Simple columnar located

Gastrointestinal tract including stomach, intestines

Pseudostratified columnar function

Secrete substances particularly mucus

Pseudostratified columnar located

Upper respiratory tract, ducts of large glands

Transitional function

Can stretch out or relax

Transitional located

Lines of uterus and bladder

Stratified squamous function

Protects underlying tissues in areas subjected to abrasion

Stratified squamous located

Epidermis of skin, mouth, esophagus

Stratified cuboidal function

Protects and support to glands

Stratified cuboidal located

Sweat glands, salivary glands, mammary glands

Stratified columnar function

Protection and secretion

Stratified columnar located

Eye, male urethra