Question 1

Part completeWhich of the following hormones is currently thought to decrease plasma calcium levels in pregnant women and children?

Accepted Answer

calcitonin

Question 2

PTH promotes the formation of which hormone?

Accepted Answer

calcitriol

Question 3

Part completeWhich of the following would NOT be a way that parathyroid hormone (PTH) could alter plasma calcium levels? (Which one of the following is FALSE?)

Accepted Answer

increase osteoblasts on bone

Question 4

Which hormone works directly in the intestine to increase plasma calcium levels?

Accepted Answer

calcitriol

Question 5

Osteoid-producing osteoblasts must rely on this organelle to produce primary structures leading to the formation of collagen and calcium-binding proteins.

Accepted Answer

ribosomes

Question 6

Part completeWhich of the following contributes most directly to the hardness of bones?

Accepted Answer

hydroxyapatiteHydroxyapatite, or mineral salts such as calcium phosphate, accounts for the most notable characteristic of bone&mdash;its exceptional hardness, which allows it to resist compression.

Question 7

Bones do NOT have a role in __________.

Accepted Answer

glycogen productionGlycogen production (glycogenesis) is not a role of bone; it takes place primarily in muscle and liver cells.

Question 8

epiphyseal plate

Accepted Answer

During endochondral ossification, a distinct epiphyseal plate is formed at the boundary between primary and secondary ossification centers.

Question 9

epiphyseal plate or line is composed primarily of what tissue?

Accepted Answer

hyaline cartiliadge The cartilage models used to form bones are composed of hyaline cartilage. This tissue persists within the epiphyseal plate at the boundary between primary and secondary ossification centers until early adulthood.

Question 10

what happens at the epiphyseal plate that leads to elongation

Accepted Answer

Cell division of chondrocytes occurs on the epiphysis facing side. Rather than dividing, here chondrocytes hypertrophy and deteriorate along the diaphyseal surface of the growth plate.Conversion of bone tissue into cartilage is not a normal process in bone physiology.

Question 11

periosteum-

Accepted Answer

The periosteum is composed of dense irregular connective tissue along with a layer of simple squamous epithelium.outside of bone

Question 12

articular cartilage-

Accepted Answer

The articular cartilage at the ends of long bones is formed from hyaline cartilage.

Question 13

In which of the labeled parts of the adult long bone would hematopoietic tissue be located?

Accepted Answer

Hematopoietic tissue is found in the red bone marrow within certain body locations consisting of spongy bone. Examples include the diploe of flat bones and the proximal epiphyses of the femur and humerus (picture

Question 14

What is the term for the layers of bony matrix surrounding the vessels and nerve?

Accepted Answer

lamellaeLamellae are layers of bony matrix synthesized by osteoblasts during bone growth and maintenance.

Question 15

The word root ----- means blood.

Accepted Answer

hema

Question 16

The word root _____ means around or enclosing.

Accepted Answer

peri

Question 17

The word root _____ means bone.

Accepted Answer

oste

Question 18

The word root ____ means one that breaks or destroys.

Accepted Answer

clast

Question 19

The word root _____ means embryonic or formative cell.

Accepted Answer

blast

Question 20

Part completeYour patient is returning for follow-up 6 weeks after sustaining a nondisplaced fracture of his radius. He tells you that his forearm is no longer painful, but he is concerned that he can palpate a lump in the bone at the site of the healing fracture. What is your response?

Accepted Answer

That bump is a normal part of bone healing at this stage. As your body completes the process, the cells in your bone will gradually remodel it to its previous shape.

Question 21

Part completeYou are counseling a patient with osteoporosis about strategies for avoiding fractures. Which of the following comments would NOT be appropriate?You are counseling a patient with osteoporosis about strategies for avoiding fractures. Which of the following comments would NOT be appropriate?Weight-bearing exercises like walking and strength training for your muscles will help to strengthen your bones.You should avoid weight-bearing exercise and strength training because these types of exercise will further weaken your bones.Adequate protein in your diet will help to keep your bones strong.Be sure to consistently take any calcium and vitamin D supplements prescribed by your provider.

Accepted Answer

You should avoid weight-bearing exercise and strength training because these types of exercise will further weaken your bones.

AP CH 6 HW

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