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The term dipole refers to the ___________.

internal layer of spongy bone in flat bones

Bone is broken down by:


Lengthwise, long bone growth during infancy and youth is exclusively through

interstitial growth of the epiphyseal plates

Which hormone increases osteoclast activity to release more calcium ions into the bloodstream?

parathyroid hormone

Which of the following statements best describes interstitial growth?

chondrocytes in the lacunae divide and secrete matrix, allowing the cartilage to grow from within

A fracture in the shaft of a bone would be a break in the


Bones are covered and lined by a protective tissue called periosteum. The inner (osteogenic) layer consists primarily of ________.

osteoblasts and osteoclasts.

The canal that runs through the core of each osteon (the Harversian canal) is the site of ______.

blood vessels and nerve fibers

The cell responsible for secreting the matrix of the bone is the ____________.


Which structure allows the diaphysis of the bone to increase in length until early childhood, as well as shaping the articular surfaces?

epiphyseal plate

Which of the following bones belong to the axial skeleton?


Which of the following is classified as a short bone?

wrist bone

Cartilage grows in two ways, appositional and interstitial. What is appositional growth?

the secretion of new matrix against the external face of existing cartilage.

Ostealgia is

pain in a bone

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