Quiz 6

Question 1

Hematopoiesis takes place in the ________ of some adult bones.

Red bone marrow

Canaliculi

Osteons

Periosteum

Yellow bone marrow

Answer 1

Red bone marrow

Question 2

Which of the following is mismatched?

Osteoblasts – secrete matrix material

Osteoclasts –are derived from osteocytes and break down bone tissue

Osteogenic cells – give rise to osteoblasts

Osteocytes – maintain bone tissue

Answer 2

Osteoclasts –are derived from osteocytes and break down bone tissue

Question 3

While bone grown in length involves the epiphyseal plate, bone growth in thickness involves deposition of bone on the outside and removal of bone from the inside.

True
False

Answer 3

True

Question 4

Which of the following is incorrectly matched?

Epiphyseal growth plate – found in the metaphysis of a growing bone

Articular cartilage – composed of elastic cartilage to allow flexibility at joints

Diaphysis – shaft of bone

Endosteum – lines the medullary cavity of long bone

Epiphysis – found at the proximal and distal ends of the bone

Answer 4

Articular cartilage – composed of elastic cartilage to allow flexibility at joints

Question 5

________ contribute(s) to the hardness of bone while ________ give(s) it flexibility.

Mineral salts; collagen and other organics

Yellow bone marrow; collagen and other organics

Collagen and other organics; mineral salts

Proteins; hydroxyapatite

Answer 5

Mineral salts; collagen and other organics

Question 6

Bone is considered a connective tissue because it contains cells in a matrix with fibers.

True
False

Answer 6

True

Question 7

Which of the following statements is incorrect?

Endochondral ossification begins with development of an ossification center.

Intramembranous and endochondral ossification both involve replacement of preexisting connective tissue with bone.

Intramembranous ossification is the method by which flat bones of the skull, some facial bones, the mandible, and part of the clavicle are formed.

Endochondral ossification is the method by which most of the bones of the body are formed.

Answer 7

Endochondral ossification begins with development of an ossification center.

Question 8

Bone remodeling:

Involves osteoclasts and osteoblasts

Involves replacement of old bone tissue with new bone tissue

Involves bone resorption and bone deposition

All of these

Answer 8

All of these

Question 9

Which of the following statements is incorrect?

The cranium, rib cage and vertebrae protect important internal organs from injury.

Bone stores calcium and phosphorus.

Bone releases minerals as needed to maintain homeostasis.

The skeleton provides a structural framework for the body.

All of these statements are correct.

Answer 9

All of these statements are correct.

Question 10

Parathyroid hormone decreases blood calcium levels while calcitonin increases blood calcium levels.

True
False

Answer 10

False
(the opposite way around)