Tissues: Connective

Question 1

What kinds of connective tissue aren’t well supplied with blood and nerves?

Answer 1

-cartilage and tendons

Question 2

Fibroblast

Answer 2

secretes fibers and components of ground substances

Question 3

adipocytes

Answer 3

store triglycerides

Question 4

mast cells

Answer 4

produce histamines

Question 5

white blood cells (leukocytes)

Answer 5

immune response

neutrophils and eosinophils

Question 6

macrophages

Answer 6

engulf bacteria + cellular debris with phagocytosis

Question 7

plasma cells

Answer 7

secrete antibodies

Question 8

ground substance

Answer 8

• between cells and fibers
• can be fluid, semifluid, gelatinous, or calcified
• supports/binds cells, stores water, and allows exchange between blood and cells
• complex combo of protein and polysacchrides

Question 9

Embryonic connective tissue

Answer 9

mesenchyme and mucus connective tissue

Question 10

Types of loose connective tissue

Answer 10

areolar, adipose, and reticular

Question 11

types of dense connective tissue

Answer 11

regular, irregular, and elastic

Question 12

areolar

Answer 12

• most widely distributed
• all 3 fibers and tons of cells (fibroblasts, , macrophages, plasma cells, mast cells)
• found under skin layer; packages organs, surrounds capillaries

Question 13

adipose

Answer 13

• has adipocytes
• good for insulation and energy reserves
• white and brown adipose tissue
• under skin, around kidneys/eyeballs; in abdomen and breasts

Question 14

reticular

Answer 14

• interlacing reticular fibers (netlike)
• creates stroma that supports mast cells, WBCs, and macrophages
• in lymphoid organs (lymph nodes, liver, spleen)

Question 15

Which has more cells: dinse or loose connective tissue?

Answer 15

loose

Question 16

Dense regular

Answer 16

• collagen regularly arranged in parallel pattern for strength
• fibroblasts make the collagen
• not the best blood/nerve supply
• in tendons and ligaments

Question 17

dense irregular

Answer 17

• collagen fibers irregularly arranged
• happens where pulling forces are exerted in many directions
• dermis of skin + heart; fibrous joint capsules; digestive tract

Question 18

elastic connective tissue

Answer 18

• tons of elastic fibers forming lamellae (collagen fibers are there too)
• strong and can recoil after stretching
• lungs and arteries (also some ligaments of vertebral column)

Question 19

Cartilage

Answer 19

-dense network of collagen and elastic fibers embedded in chondroitin sulfate

Question 20

chondrocytes

Answer 20

cartilage cells found in the lacunae

Question 21

perichondrium

Answer 21

• dense irregular tissue that surrounds cartilage

- 2 layers: outer fibrous and inner cellular

Question 22

hyaline

Answer 22

• most abundant cartilage
• collagen is so fine that you can’t see it
• usually surrounded by perichondrium
• provides flexibility and support; reduces friction

Question 23

fibrocartilage

Answer 23

• strongest cartilage
• no parichondrium
• chondrocytes are scattered among bundles of collagen fibers within extracellular matrix
• found in intervertebral disc and menisci of knee

Question 24

elastic cartilage

Answer 24

• chondrocytes are located within threadlike network of elastic fibers
• perichondrium is present
• provides strength and elasticity
• found in ear and epiglottis

Question 25

repair and growth of cartilage

Answer 25

-both are slow

Interstitial growth = growth from chondrocytes within tissue

Appositional growth = growth from outer surface, just under perichondrium

Question 26

bone tissue components

Answer 26

• bone (osseous) tissue
• periosteum (dense ct)
• edosteum (areolar ct)

Question 27

osteon/haverian system

Answer 27

• tree trunk pattern with osteocytes inside lacunae
• lacking in spongy bone –> only in compact
• spongy bones have trabecullae

Question 28

blood

Answer 28

• connective tissue with liqui extracellular matrix called blood plasma
• cells: WBCs, RBCs, thrombocytes

Question 29

lymph

Answer 29

lymphocytes = cells
-lymph = extracellular matrix