A&P U2 Interim #2 (Connective Tissue)

Question 1

Types

Answer 1

1). Proper (dense & loose)
2). Cartilage
3). Bone
4). Blood

Question 2

Similarities between connective tissues

Answer 2

1). Common origin (mesenchyme, fluid/loose embryonic tissue)
2). Diff. degrees of vascularity/blood flow (e.g. cartilage = avascular)
3). Mostly composed of inert extracellular matrix

Question 3

What is the extracellular matrix composed of?

Answer 3

1). Ground substance- fills in spaces between cells
2). Fibers- provide support

Question 4

Types of fibers

Answer 4

1). Collagen- tough and flexible, part of the skin
2). Elastic fiber- long and thin, snap it back in place, found in blood vessel walls/skin
3). Reticular fiber- used to protect organs, “fuzzy nets”

Question 5

Blast

Answer 5

immature/forming

Question 6

Cyte

Answer 6

mature/cell

Question 7

Macrophages

Answer 7

Guard cells that patrol the connective tissue and consume invaders

Question 8

Areolar

Answer 8

Proper loose connective tissue, most common, found under the epithelial tissue, wrapped around organs

Question 9

Adipose

Answer 9

Proper loose connective tissue, fat tissue, insulates, mostly cells which store lipids/energy for later use, surrounds organs & eyes

Question 10

Reticular

Answer 10

Proper loose connective tissue, “woven mess” of reticular fibers, framework of the spleen, holds blood & organs in place

Question 11

Dense regular

Answer 11

tight bundles of collagen fibers all running parallel, tendons/ligaments

Question 12

Dense irregular

Answer 12

fibers are thick and arranged erratically, dermis of the skin

Question 13

Dense elastic

Answer 13

allows for more elasticity, around joints, connecting your vertabrae so your spine can curve & twist

Question 14

Cartilage

Answer 14

used for tension and compression, no blood or nerves

Question 15

Hyaline

Answer 15

Type of cartilage, glassy, provides support, connects ribs to sternum

Question 16

Elastic cartilage

Answer 16

Loaded w/ collegen fibers, found in places where strength & stretchability are needed (larynx, ears, etc.)

Question 17

Fibrocartilage

Answer 17

shock absorbers, good at withstanding lots of pressure, vertebral discs and knee joints

Question 18

Draw areolar tissue

Answer 18

ground substance, elastic fibers (thin), collagen fibers (thick), fibroblasts (immature fiber cells)

Question 19

Draw adipose tissue

Answer 19

nucleus, adipocyte, cell membrane

Question 20

Draw reticular tissue

Answer 20

fibroblasts, reticular fibers, white blood cells

Question 21

Draw dense regular and irregular tissue

Answer 21

fibroblasts, collagen fibers, regular = strong in one direction, irregular = strength in all directions

Question 22

Draw hyaline cartilage

Answer 22

nucleus, lacuna, chondrocyte, extracellular matrix

Question 23

Draw elastic cartilage

Answer 23

extracellular matrix, nucleus, lacuna, chondrocyte, elastic fibers

Question 24

Draw fibrocartilage

Answer 24

chondrocyte, nucleus, collagen fiber, ground substance

Question 25

Fibroblast

Answer 25

immature baby fiber cells, most common, produces fibers

Question 26

Histiocytes

Answer 26

mature cells, macrophages (eats things) of connective tissue, protection

Question 27

Leukocytes

Answer 27

mature white blood cells, reside in connective tissues, reacts against foreign matter

Question 28

Plasma cells

Answer 28

produces antibodies

Question 29

Mast cells

Answer 29

produces heparin (anticoagulant) & histimine (released during infection) *found near blood vessels*

Question 30

Adipocytes

Answer 30

mature fat cells, found in adipose tissue