CH 7 Quiz
Bone Tissue Quiz
If a thyroid tumor secreted an excessive amount of calcitonin, we would expect
an elevated level of osteoblast activity
Hemopoiesis typically occurs in
the red bone marrow.
Osteoblasts deposit more bone matrix in response to all of the following factors except
The cells primarily responsible for the breakdown of bone are
The protein fibers of the bone matrix are composed of
Appositional growth of a long bone has the effect of
increasing the diameter of the bone
Osteogenic cells give rise to osteoblasts, but ___ arise from monocytes of the blood
Osteocytes in the outer lamellae of an osteon transport their wastes to the bloodstream for removal via
The ___ forms by endochondral ossification.
In the development of the skeleton, what typically occurs around the ages of 18 to 21?
the epiphyseal plates close
One thing calcitriol does that parathyroid hormone does not is
stimulate the small intestine to absorb more phosphate
The skeletal system performs all of the following functions except
regulation of body temperature.
Hydroxyapatite is best described as
calcium phosphate crystals in the bone matrix
Bones that serve as levers and are moved by skeletal muscle to produce movement are termed
The cavity in the diaphysis of long bones is called the ______ cavity and commonly contains ______ marrow.
This layer makes up 25% of the skeleton by weight and helps protect the soft tissues like the brain from trauma.
The periosteum is a connective tissue sheath which lines the _____ of bones and fuses with bones by way of _____ fibers.
outer surface; perforating
Which one of the following bone cells would have the greatest number of lysosomes
When bone is stressed on one side, it usually bends slightly on the other side and does not fracture. This is due to tensile strength caused by
Bones of the skull and clavicle develop by
In endochondral ossification, the model or template on which the bone forms
In the zone of bone deposition, _____ cells rapidly invade the calcified matrix and lay down bone. Then ______ cells erode the spongy bone to form the marrow cavity
The use of anabolic steroids by adolescent boys will
decrease the growth of bone by prematurely closing the epiphyseal plate
A loss of bone mass, especially spongy bone, is usually a result of lack of exercise or deficiency of estrogen after menopause. This disorder is called