Pulmonary ventilation is the product of
a. residual volume and respiratory rate.
b. anatomic dead space and respiratory rate.
c. tidal volume and inspiration capacity.
d. residual volume and expiration capacity.
e. tidal volume and respiratory rate.
E
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Recruitment of different types of motor units in a muscle is one means of varying the amount of tension generated in that muscle.
Answer the following statement true (T) or false (F)
During a cross-bridge cycle in skeletal muscle,
a. the cross bridge is energized when it splits ATP into ADP and P b. the cross bridge must bind with ATPase before a power stroke will occur c. Ca2+ causes tropomyosin to move off of the myosin's actin-binding sites d. ADP binds to the cross bridge at the end of the power stroke e. both a and b occur
Distinguish between the exocrine and endocrine secretions of the pancreas
A) The exocrine pancreas produces acidic secretions and the endocrine pancreas produces alkaline secretions. B) The exocrine pancreas produces mucous and the endocrine pancreas produces enzymes. C) The exocrine pancreas produces bile and the endocrine pancreas concentrates and stores bile. D) The exocrine pancreas produces hormones and the endocrine pancreas produces buffers and enzymes. E) The exocrine pancreas produces buffers and enzymes and the endocrine pancreas produces hormones.
Blood cells are produced in hemopoietic tissue found in
A. compact bone. B. white bone marrow. C. red bone marrow. D. brown bone marrow. E. yellow bone marrow.