Which is a change in bone architecture or mass related to aging?
A. Insufficient calcification
B. Demineralization
C. Reduction in the organic content of the matrix
D. Loss of flexibility and increase in brittleness
E. All of the choices are correct.
E
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The speed of nerve impulse conduction depends solely upon the diameter of the axon
Indicate whether the statement is true or false.
Which of the choices below is a type of hormone that acts on neighboring cells without entering the bloodstream?
1. Local hormone 2. Paracrine 3. Autocrine 4. Circulating hormone a) 1 only b) 2 only c) 3 only d) 4 only e) Both 1 and 2
____________________ are the blood vessels where materials are exchanged between the blood and the interstitial fluid
Fill in the blank(s) with correct word
What is internal respiration?
A. Ventilation (breathing) B. Gas exchange between air and blood C. Production of ATP D. Gas exchange between blood and tissue fluid