Sixty-five percent of the mass of bone is a compound called hydroxyapatite.

True

During infancy and childhood, the most important stimulus of epiphyseal plate activity is ________.

growth hormone

Which of the following is not a function of the skeletal system?

communication

Bones do NOT have a role in ________.

glycogen production

The periosteum is secured to the underlying bone by dense connective tissue called ________.

perforating (Sharpey's) fibers

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

osteoblast

In adults, yellow marrow is located ________.

in the medullary cavity of long bones

Ossification of the ends of long bones ________.

is produced by secondary ossification centers

Which of the following is the major component of the part of the bone labeled E?

adipose tissue

What kind of tissue is the forerunner of long bones in the embryo?

hyaline cartilage

Which of the labeled parts of the bone is composed primarily of compact bone?

D

The epiphyseal plate is ________.

where long bone lengthening occurs

An osteon contains osteocytes, lamellae, and a central canal, and is found in compact bone only.

True

A step in which bone-forming process is shown in the figure?

endochondral ossification

Choose the TRUE statement.

Endochondral ossification converts hyaline cartilage "bone" models into true bones (i.e., hyaline cartilage serves as a template for bone formation).

The above figure depicts which of the following bone-forming processes?

intramembranous ossification during embryonic development

The canal that runs through the core of each osteon (the Haversian canal) is the site of ________.

blood vessels and nerve fibers

Osteoclasts ________.

break down bone

The term diploë refers to the ________.

internal layer of spongy bone in flat bones

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

diaphysis

Which of the following bones are formed by the illustrated process?

All of the listed responses are correct.

Which of the labeled parts of the bone is composed primarily of hyaline cartilage?

A

In adults, hematopoietic tissue is NOT found in ________.

the medullary cavity of long bones

The structural unit of compact bone (osteon) resembles the growth rings of a tree trunk.

True