BONE

Question 1

Bones are:

Answer 1

-Very active tissue
- Made up of several types of tissues
- Organs- Every Bone is an organ

Question 2

Function of the Bone

Answer 2

• Muscle attachment
• Protection and support
• Blood cell production
• Storage of minerals ( calcium and magnesium)

Question 3

Bone structure

Answer 3

Bone differ in shape and size
Have many features in common
Bone ( osseous) tissue is considered to be connective tissue.

Question 4

There are two types of bone structures

Answer 4

Compact bone : highly organized
Spongy Bone : Has opening & has a Spongy appearance ( cancellous)

Question 5

Parts of Long Bone ( arms and legs)

Answer 5

• Epiphysis
• Articular
• Diaphysis
• Periosteum
• Medulary cavity

Question 6

Epiphysis

Answer 6

• Ends of the bone
• Made up of Spongy bone
• Filled with red marrow

Question 7

Articular (Hyaline) Cartilage

Answer 7

Most abundant throughout the body
-Covers the epiphyses

Question 8

Diaphysis

Answer 8

-Shaft of the bone
- Made up of compact bone

Question 9

Periosteum

Answer 9

-Connective tissue
-Cover the bone

Question 10

Medullary Cavity

Answer 10

-Hollow cavity of the diaphysis
- Filled with yellow marrow
- lined with endosteum.

Question 11

Microscopic Structure

Answer 11

Compact bone is organized in units called OSTEONS ( Haversian system)
- only found in compact bone.

Question 12

Osteocyctes

Answer 12

Bone cells

Question 13

Lacunae

Answer 13

Opening that contain bone cells

Question 14

Matrix

Answer 14

Made up of inorganic salts- How nutrient get through to bone.

Question 15

Canaliculi

Answer 15

small canals that run through matrix

Question 16

Haversian ( Central ) Canals

Answer 16

Contain blood vessels

Question 17

Volkmanns’s canals

Answer 17

Connect osteons

Question 18

Lamellae

Answer 18

Concentric rings

Question 19

Spongy (cancellous) bone

Answer 19

not made up of osteons. They have trabeculae.

Question 20

Bone development ossification and growth

Answer 20

Bones form from connective tissue in the fetus

Question 21

Intramembranous

Answer 21

-membranes become bones
- seen in flat bones (skull)

Question 22

Intramembranous ( Process)

Answer 22

1. Osteoblasts ( Immature Bone cells) produce a framework ( Trabeluae) of bone tissue- (produce bone)
2. Calcium Salts are deposited. A matrix is made
3. Spaces fill with red marrow
4. osteoblasts mature into osteocytes- can no longer produce bone
5. Surface are changed into compact bone.

Question 23

Endochondral

Answer 23

cartilage become bone
seen in long bones