Liver and Cartilage

Question 1

Bile Canaliculi

Answer 1

expanded extracellular space sealed by junctional complexes of adjacent hepatocytes

Question 2

What are the cells of CT proper, cartilage, and bone?

Answer 2

fibroblasts, chondrocytes, and osteocytes

Question 3

what is the ground substance of CT proper?

Answer 3

hyaluronic acid, high H2O

Question 4

what is the ground substance of cartilage??

Answer 4

glycosaminoglycans: Chondroitin sulfate, hyaluronic acid
high H2O (compared to bone),

Question 5

what is the ground substance of bone?

Answer 5

hydroxyapatite, Ca, CO3, PO4, low H2O

Question 6

perichondrium

Answer 6

sheath of dense irregular connective tissue around cartilage

Question 7

What are the three types of cartilage? which ones have perichondrium?

Answer 7

hyaline, elastic, and fibrocartilage

fibrocartilage and hyaline cartilage found on articular surfaces DO NOT have perichondrium

Question 8

how is cartilage repaired?

Answer 8

better in young animals: interstitial and appositional growth

in adults, replaced by fibrous CT.

Question 9

This forms the outer shell of all bones (two different names)

Answer 9

compact bone (cortical)

Question 10

this bone is found in the central region of bones, it contains bone marrow

Answer 10

cancellous (spongy or trabecular) bone

Question 11

what is the inorganic component of bone called found within collagen fibers?

Answer 11

hydroxyapatite crystals

Question 12

what are the three types of lamellae found in bone?

Answer 12

osteons, interstitial lamellae, circumferential lamellae

Question 13

what are the canals through which haversian canals communicate with periosteum, bone marrow, and each other?

Answer 13

Volksman Canals

Question 14

which type of bone develops directly from mesenchyme?

Answer 14

intramembranous bone. occurs in a well vascularized area

Question 15

What is the function of Kupffer cells in the liver?

Answer 15

phagocytes!

Question 16

perichondrium is lacking in what type of cartilage

Answer 16

fibrocartilage and articular surfaces (hyaline)

Question 17

what is the matrix surrounding each lacunae of chondrocytes called?

Answer 17

territorial matrix

Question 18

elastic cartilage is found in what locations of body?

Answer 18

pinna of ear, epiglottis, auditory tube

Question 19

hyaline cartilage is found in what location of body?

Answer 19

articular surface of bone, nose, larynx, trachea, embryonic skeleton

Question 20

fibrocartilage is found in what locations of body?

Answer 20

intervetebral disks, menisci

Question 21

fibrocartilage is made of what type of fiber?

Answer 21

collagen bundles!

Question 22

what do osteoblasts secrete?

Answer 22

tropocollagen and GAGs (osteoid?)

Question 23

what are the two latin words for the parts of a joint capsule

Answer 23

stratum fibrosum (fibrous membrane)

stratum synovial (synovial membrane)

Question 24

synovial fluid has a lot of ____

Answer 24

hyaluronic acid