Exam 7: Skeletal System: Bone Structure and Function

The shaft of a long bone is called the _________.

Osteoblasts are bone-forming cells;osteoclasts are bone-dissolving cells.

Before beginning orthodontic treatment,a patient may have her wrist and hand x-rayed to determine her stage of growth.What feature of the long bones will the orthodontist use to assess this

Which hormone inhibits bone growth

Which is not true about bone remodeling

As the bone matrix calcifies and the secreting cells become walled in,

What are the matrix rings of compact bone that surround the central canal of each osteon

Which affects osteoblast and osteoclast activity

Bone growth in which the bone increases in diameter is called

Which is a change in bone architecture or mass related to aging

When during human development does the process of ossification begin

What helps bone resist compression

The zones found in an epiphyseal plate are A: Calcified cartilage B: Hypertrophic cartilage C: Ossification D: Resting cartilage E: Proliferating cartilage The correct order for these zones,beginning with the edge closest to the epiphysis and proceeding toward the diaphysis,is

An osteoclast has a ruffled border and multiple nuclei.

Mechanical stress of bones,such as that caused by weight lifting,is detected by

In adults,the medullary cavities of most long bones contain red marrow.

Spongy bone makes up less than half of total bone mass,and is located internal to compact bone.

During the process of endochondral ossification,chondrocytes in the cartilage model die.Why does this occur

Which is an alternate term for compact bone

In the kidneys,parathyroid hormone acts to ________ production of calcitriol and to ________ excretion of calcium in urine.