Which of the following is NOT a substance found within bone tissue?
C. Collagen fibers
D. Elastic fibers
What is NOT a primary function of the skeletal system?
A. Hematopoietic (blood cell production) site
B. Triglyceride (fat) storage
D. Calcitonin production
This type of bone cell is activated with the release of parathyroid hormone?
Which statement is NOT true regarding an osteon?
A. Found in both spongy and compact bone
B. Osteocytes are found within lacunae
C. Contains a central canal carrying blood vessels
D. Canaliculi connect lacunae to the central canal
Which statement is NOT true of red bone marrow?
A. Located in the medullary cavity of long bones in healthy adults
B. Found in flat bones such as the sternum, cranium and hip bones
C. Located in spongy bone of bones in healthy adults
D. Is hematopoietic tissue (blood cell production)
Which statement is true regarding the epiphyseal plates?
A. Found in the diaphysis region of long bones
B. Found in adult bones
C. Assists the bones in appositional growth
D. It’s a portion of bone where cartilage cells are converted to bone tissue
The trabeculae of spongy bone are well organized and align precisely along lines of stress, which ultimately help bone from breaking?
Which choice best relates and/or describes Wolf’s law of bone?
A. Relates to the amount of blood flow to bone tissue
B. The density of bone matrix of bone is determined by the mechanical stresses placed upon it
C. Influences calcium absorption by the body
D. Calcium homeostasis of blood
Bone remodeling is a function of what cells?
A. Osteocytes and chondroblasts
B. Osteoblasts and osteoclasts
C. Osteocytes and osteoclasts
D. Osteocytes and osteoblasts
The organic portion of the extracellular matrix space provides all of the following functions except for:
A. Tensile strength
B. Ability to resist stretch
Which choice is true regarding calcitonin?
A. Overall, it will cause an increase in blood calcium levels
B. Increases calcium absorption in intestines
C. Activates the activity of osteoblasts
D. Increases the reabsorption of calcium in the kidneys back into the bloodstream
The majority of bones in the body are formed by endochondral ossification where a cartilage model of bone is eventually converted to bone?
Formation of the fibrocartilaginous callus in the fracture repair of bone is followed up by which process?
A. Hematoma formation
B. Bony callus formation
C. Formation of granulation tissue
D. Bone remodeling
Which choice is true of parathyroid hormone?
A. Indirectly inhibits calcium absorption in the intestines
B. Inhibits the reabsorption of calcium in the kidneys
C. Increases the production of vitamin D
D. Overall, it will cause a decrease in blood calcium levels
The inorganic portion of the extracellular matrix space is produced by the osteoblasts?