Exam 5: The Skeletal System

Arrange in the proper sequence the following events as they occur in the ossification of a long bone. 1. Chondroblasts die, and the surrounding matrix breaks down. 2) Osteoblasts secrete osteoid. 3) Blood vessels transport osteoblasts into the area to be ossified. 4) Chondroblasts create a model of long bones from cartilage. 5) Osteoblasts become osteocytes.

Using the figure above, match the following. -location of blood vessels

All of the following are functions of bone EXCEPT which one?

Individuals can prevent osteoporosis by including sufficient supplies of vitamin C and calcium in their diets and maintaining a consistent exercise program.

The ________ bones are pierced by tiny openings through which the tear ducts drain.

In characterizing cartilage, which one of the following is CORRECT?

During the last two months of fetal development of the female, sex hormones cause bone remodeling of the pelvic girdle that adapts it for pregnancy and birth.

A young man is brought to an emergency room; his diagnosis is a broken cheek bone. Which one of the following bones has been affected?

Osteogenesis imperfecta, also known as "brittle bone disease," is caused by a genetic defect in the gene that encodes ________, the major protein found in bone.

Which one of the following statements is TRUE regarding bone?

Which one of the following bones articulates with the metatarsal bones?

If a child needed to have surgery that removed all growth plates, what would be the effect on bone growth?

Osteoporosis is a common condition that essentially results when homeostasis cannot be maintained in ________ and ________.

All of the following statements about the sinuses are TRUE EXCEPT which one?

A number of different hormones work together to influence bone growth and integrity. Explain how each of the following hormones affects the development for the maintenance of bone: growth hormone, estrogen, testosterone, calcitonin, parathyroid hormone

Immovable joints such as those found between bones of the skull are ________ joints.

When a bone breaks, a(n) ________ forms until later being replaced with bone.

As bone develops and becomes hard, osteocytes become trapped in hollow chambers called lacunae.

Each of the following bones is part of the axial skeleton EXCEPT which one?