Connective Tissue

Question 1

connective tissue

Answer 1

most abundant and widely distributed

Question 2

4 types of connective tissue

Answer 2

connective tissue proper
cartilage
bone
blood

Question 3

structure of connective tissue

Answer 3

various cell types derived from mesenchyme
nonliving extracellular (ground substance and fibers)
varying degrees of vascularization

Question 4

functions of connective tissue

Answer 4

1. binding and support
2. protection
3. insulation
4. energy/fluid storage
5. transport

Question 5

ground substance

Answer 5

material between the cells and extracellular fibers
interstitual fluid, cell adhesion proteins, proteoglycans

Question 6

3 connective tissue fibers

Answer 6

collagen
elastic
reticular

Question 7

collagen

Answer 7

tough fibers provide tensile strength

Question 8

elastic

Answer 8

long thin fibers that stretch and recoil

Question 9

reticular

Answer 9

branched fibers that form delicate networks

Question 10

which type of fiber would you expect to find at high levels of lung connective tissue?

Answer 10

elastic
stretch and recoil, important for lung to expand and contract with breathing

Question 11

which type of fiber would you expect to find supporting around tissues of a soft organ?

Answer 11

reticular
branching structure supports and protects organ

Question 12

which type of fiber would you expect to find in bone tissue

Answer 12

collagen
adds mechanical strength

Question 13

which type of connective tissue has the least solid ground substance?

Answer 13

blood
very fluid, water surrounding blood cells

Question 14

mesenchyme

Answer 14

embryonic connective tissue gives rise to differentiated cells

Question 15

fibroblasts

Answer 15

connective tissue proper

Question 16

chondroblasts

Answer 16

cartilage

Question 17

osteoblasts

Answer 17

bone

Question 18

hematopoietic stem cells (located in bone)

Answer 18

blood

Question 19

what other cells are present in connective tissue?

Answer 19

adipose fat cells, white blood cells, marcrophages, and mast cells (inflammation)

Question 20

types of connective tissue proper

Answer 20

loose- areolar, adipose, and reticular
dense- regular, irregular, and elastic

Question 21

connective tissue proper: areolar

Answer 21

matrix- gel like with all three fiber types
cells- fibroblasts, marcrophages, mast cells, and other white blood cells

Question 22

function of areolar connective tissue proper

Answer 22

wraps and cushions organs
base of most epithelial tissues
reservoir of H2O salts,

Question 23

location of areolar connective tissue proper

Answer 23

widely distributed throughout body

Question 24

connective tissue proper: adipose

Answer 24

matrix- similar to areolar, less fibers, gel like with all fiber types
cells- adipocytes

Question 25

functions of adipose

Answer 25

energy storage insulation supports and protects

Question 26

locations of adipose

Answer 26

under skin, within abdomen, breasts, and kidneys local fat depots in highly active organs

Question 27

connective tissue proper: reticular

Answer 27

matrix- ground substance with reticular fibers only cells- reticular cells in fiber network

Question 28

function of reticular

Answer 28

internal skeleton to support other cell types

Question 29

location of reticular

Answer 29

lymph nodes, bone marrow, and spleen

Question 30

connective tissue proper: dense regular

Answer 30

parallel collagen fibers with few elastic fibers withstand tension in one direction cell- fibroblast poorly vascularized

Question 31

location of dense regular

Answer 31

attaches muscles to bone, muscle to muscle, and bone to bone ligaments and tendons, fascia around muscles

Question 32

connective tissue proper: dense irregular

Answer 32

irregularly arranged collagen fibers with some elastic cell- fibroblast

Question 33

location of dense irregular

Answer 33

withstands tension in many directions found in dermis, digestive tract, fibrous capsules in joints and surrounding organs

Question 34

connective tissue proper: dense elastic

Answer 34

high amount of elastic fibers able to recoil after stretching

Question 35

location of dense elastic

Answer 35

ligaments, connective vertebrae, larger arteries, bronchial tube walls

Question 36

what type of tissue would you find between tendons and bone and muscle?

Answer 36

dense regular

Question 37

which type of tissue would you expect to find on kidney?

Answer 37

dense irreglar fibrous covering around kidney

Question 38

what type of tissue would be found in capillaries?

Answer 38

loose areolar

Question 39

cartilage

Answer 39

stands up to tension and compression made up of collagen fibers for firmness 80% tissue is fluid for rebound resilient rigidity

Question 40

what cells are cartilage made up of?

Answer 40

chondroblasts ---> chondrocytes

Question 41

lacunae

Answer 41

cavities for chrondocytes

Question 42

hyaline cartilage

Answer 42

matrix- amorphous with collagen fibers

Question 43

functions of hyaline cartilage

Answer 43

supports, reinforces, and cushions, some pliability most abundant cartilage

Question 44

location of hyaline cartilage

Answer 44

embryonic skeleton between ribs, end of long bones, epiphyseal plates, nose, trachea, and larynx

Question 45

elastic cartilage

Answer 45

similar to hyaline but with more elastic fibers maintains shape and structure while allowing flexibility

Question 46

location of elastic cartilage

Answer 46

supports external ear (pinna) and epiglottis

Question 47

fibrocartilage

Answer 47

matrix similar to hyaline but with thick collagen fibers provides strength and absorbs shock

Question 48

location of fibrocartilage

Answer 48

intervertebral discs, pubic symphysis, and menisci of knee

Question 49

bone

Answer 49

matrix- hard, calcified with collagen fibers, vascular cells- osteoblasts---> osteocytes

Question 50

function of bone

Answer 50

support and protect provides levers for muscular action stores calcium, minerals, and fat hematopoiesis (blood cell formation)

Question 51

blood

Answer 51

matrix- plasma cells- red and white blood cells (and platelets)