types of tissues

Question 1

histology

Answer 1

the study of cells

Question 2

why is histology important to medicine?

Answer 2

abnormal cells and tissues can be compared to normal tissues to identify diseases

Question 3

what are the 4 major categories of tissues?

Answer 3

epithelial connective muscle nervous

Question 4

how are the four categories of tissues separated or what are they based upon?

Answer 4

based on function and embryonic tissue of origin

Question 5

where can epithelial tissue be found in body?

Answer 5

lining every cavity and surface of human body

Question 6

what is purpose of basement membrane?

Answer 6

separates tissues and protects from stress

Question 7

four functions of epithelial tissue?

Answer 7

1. protect tissue they cover
2. regulate gas and nutrient exchange btwn organs and body cavities
3. secrete substances (sweat, hormones, mucus, enzymes)
4. provide sensation w/ environment

Question 8

squamous cell?

Answer 8

flat shape

Question 9

cuboidal cell?

Answer 9

cube shaped

Question 10

columnar cell?

Answer 10

column shaped

Question 11

stratified epithelial tissue?

Answer 11

made up of more than one layer of cells

Question 12

simple epithelial tissue?

Answer 12

made up of single layer of cells

Question 13

transitional epithelium?

Answer 13

transitioning from shape of one cell to another

Question 14

pseudostratified epithelial?

Answer 14

single layer of cells, but location of nuclei makes it look stratified

Question 15

function of ciliated epithelial tissue?

Answer 15

catches foreign particles and moves them away from lungs

Question 16

function of keratinized epithelial tissue?

Answer 16

layer that does not receive nutrients, and is dead, and forms layers of dead tissue that provide more protection, and most commonly seen on outside of skin

Question 17

3 parts that make up connective tissue?

Answer 17

cells, fibers, extracellular components embedded in fluid

Question 18

what are fibroblasts?

Answer 18

cells that produce connective tissues

Question 19

what parts of body are classified as connective tissue?

Answer 19

blood, bone, cartilage, tendons, ligaments, adipose (fat), lymph

Question 20

interstitial fluid?

Answer 20

fluid with proteins and cells

Question 21

adhesion proteins?

Answer 21

allow cells to bind to each other and to structural fibers

Question 22

proteoglycans?

Answer 22

proteins that act to filter fluids thru ground substance

Question 23

collagen fibers?

Answer 23

extreamly strong fibers that provide support

Question 24

elastin fibers?

Answer 24

fibers that can stretch and return to og shape like rubber band

Question 25

reticular fibers?

Answer 25

fine networking fibers

Question 26

connective tissues function?

Answer 26

protect, store energy, support, transport, insulate, connect all body tissues

Question 27

vascular tissue?

Answer 27

made out of living substances

Question 28

avascular tissue?

Answer 28

made up of extracellular matrices/substances instead of cellular components

Question 29

what parts of connective tissue are most affected by disease and disorder?

Answer 29

collagen and elastin

Question 30

function of muscle tissue?

Answer 30

provide movement

Question 31

what proteins make up bulk of muscle tissue?

Answer 31

myosin and actin

Question 32

what are myofilaments?

Answer 32

myosin and actin are arranged into larger bundles to make muscles

Question 33

where are skeletal muscles found?

Answer 33

attached to our skeleton by tendons

Question 34

how much of human body is made up of skeletal muscle?

Answer 34

35-45%

Question 35

where would smooth muscle tissue be found?

Answer 35

lining of most bodily organs

Question 36

which muscle tissues have striations?

Answer 36

skeletal muscle, cardiac

Question 37

which muscle tissues are voluntary?

Answer 37

skeletal

Question 38

why does cardiac muscle tissue have large numbers of mitochondria?

Answer 38

provide energy source for continuous contracting action of heart

Question 39

what is function of nervous tissue?

Answer 39

communication

Question 40

how do neurons and neuroglia cells work together?

Answer 40

neurons send and receive msgs, while neuroglia provide support and nutrients for neurons