The protein that is found in the Z line of a sarcomere is called
A) actinin.
B) titin.
C) nebulin.
D) myosin.
E) actin.
A
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The ultimate function of pulmonary ventilation is to
A) remove carbon dioxide from the blood. B) supply oxygen to the blood. C) provide adequate alveolar ventilation. D) remove air from dead air space. E) prevent gas exchange in the bronchioles.
Describe the functions of osteocytes
A) Osteocytes are stem cells that form osteoblasts. B) Osteocytes are immature bone cells that secrete the organic components of bone matrix. C) Osteocytes are mature bone cells that maintain the bone matrix. D) Osteocytes are cells that remove the bone matrix. E) Osteocytes are cells that form cartilage.
If lung disease results in an arterial PO2 of 80 mmHg, the total amount of oxygen carried by the blood is 20% below normal.
Answer the following statement true (T) or false (F)
Type 1 diabetes mellitus is caused by
A. an effect of aging. B. obesity. C. a disorder of the immune system. D. excess sugar in the diet.