CH. 6 Module 3: Section 6.05

Select the statement that best describes most long bones at the time of birth.

A bony diaphysis with a widening medullary cavity, and two cartilaginous epiphyses

Identify the stage of long bone growth at the epiphyseal plate indicated by "D."

Calcification zone

Match the description to the correct zone in longitudinal growth of a long bone: Dead cartilage cells appear; matrix begins deteriorating.

Calcification zone

Correctly match the definition and term: Replacement of hyaline cartilage with bony tissue to form a bone.

Endochondral ossification

Identify the stage of endochondral ossification indicated by "E."

Epiphyses ossify; hyaline cartilage remains only in epiphyseal plates and articular cartilages.

Intramembranous ossification is mostly responsible for forming which type of bone?

Flat bone

Identify the stage of long bone growth at the epiphyseal plate indicated by "C."

Hypertrophic zone

Match the description to the correct zone in longitudinal growth of a long bone: Older cartilage cells enlarge.

Hypertrophic zone

Identify the stage of long bone growth at the epiphyseal plate indicated by "E."

Ossification zone

Correctly match the term and description: Diaphysis.

Primary ossification center

Match the description to the correct zone in longitudinal growth of a long bone: Cartilage cells undergo mitosis.

Proliferation zone

Correctly match the term and description: Epiphyseal plate.

Site of length increase in long bones

Match the description to the correct stage of intramembranous ossification: Immature spongy bone and periosteum form.

Stage 3

Match the description to the correct stage of intramembranous ossification: Compact bone replaces immature spongy bone, just deep to the periosteum, and red marrow develops.

Stage 4

Select the true statement regarding appositional growth of a long bone.

The long bone increases in thickness, or diameter.

Correctly match the definition and term: A hormone that modulates the activity of growth hormone, ensuring proper bone formation.

Thyroid hormone

Before eight weeks, the skeleton of the human embryo is composed of __________.

fibrous membrane and hyaline cartilage

During infancy and childhood, the single most important stimulus of epiphyseal plate activity is __________ from the anterior pituitary gland.

growth hormone

Identify the stage of long bone growth at the epiphyseal plate indicated by "B."

proliferation zone

In adolescence, the "growth spurt" that is observed is mainly attributed to an increase in __________.

sex hormones