Lab practical 2- Ch. 7 Prep Flashcards Preview

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Flashcards in Lab practical 2- Ch. 7 Prep Deck (37)
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1

perforating canal

perpendicular canal-carry blood vessels deep into bone- run perpendicular to Haversian canals.

2

canaliculi

branching canals that connect lacunae.

3

Periosteum

most superficial tissue of bone
dens irregular collagenous connective tissue

4

Perforating fibers

Extensions of collagen fibers from the periosteum that anchor the periosteum to the bone. These are like the roots of the periosteum.

5

Osteogenic cels

Osteoprogenitor cells- can become osteoblasts

6

How do osteoclasts work?

Secrete enzymes the catalyze the digestion of bone ECM.

7

Concentric lamellae

lamellae rings the surround the central canal

8

circumferential lamellae

Surround the entire bone-just deep to the periosteum

9

What are the two forms of osseous tissue?

Compact and spongy bone

10

What do central canals contain?

blood vessels and nerves

11

What is the lining of central canal interior made of?

Endosteum.

12

Trabeculae

Tiny bone spicules inside of spongy bone.

13

What lanes the trabeculae

Endosteum

14

What are trabeculae composed of?

Lamellae- but not organized into osteons.

15

What are the two main chemical components of ECM of osseous tissue?

Organic Components- ground substance and protein fibers such as collagen fibers
Inorganic components- calcium salts (calcium hydroxyapatite crystals)

16

Short bones

bones of wrist and ankle

17

Flat bones

ribs, sternum, skull bones, and hip bones

18

Irregular bones

vertebrae, sacrum, some skull bones such as sphenoid bone

19

Sesmoid bones

Roughly oval located within a tendon-patella

20

Sutural bones

Small bones located between the flat bones of the skull

21

What are the zones bone moving away from epiphyseal plate?

Zone of reserve cartilage, zone of proliferation, zone of hypertrophy and maturation, zone of calcification, zone of ossification.

22

Which yields bone growth, the epiphyseal line or plate?

Epiphyseal plates grow.

23

Synovial joints

Joints that don’t move- Sutures of the head

24

Amphiarthroses

Joints that allow little movement- costochondral joints

25

Diarthroses

Freely moveable joints

26

Fibrous joints

Consist of bones jointed by short collagen fibers- Most fibrous joints allow no motion and are synarthroses.

27

What are the three types of fibrous joints?

Sutures- skull
Gomphosis- between tooth and alveolus
Syndesmosis- between two parallel articulating bones like radius and ulna.

28

Cartilaginous joints

Bones united by cartilage- hyaline or fibrocartilage-allow some motion and are amphiarthroses.

29

What are the two types of cartilaginous joints

Symphyses- common type of cartilaginous joints- intervertebral joints and pubic symphysis
Synchondroses- bones joined by hyaline cartilage- epiphyseal plate

30

Synovial joints

True joint cavity- two bones joined by a joint capsule.