The rate and force of heart contractions change to meet the metabolic needs of the tissues which can vary based on different conditions.
a. true
b. false
a. true
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The normal heart rate for an adult is ________ beats per minute
A) 90-170 B) 60-100 C) 10-30 D) 70-120
Match the mineral with its function.A. Functions in carbon dioxide metabolism and transport, also needed for protein metabolismB. Component of hemoglobinC. A constituent of coenzymes; needed for bone formation and proper function of nerve and muscleD. Needed for the production of thyroxineE. Component of nucleic acids and ATP; used in bone formationMagnesium
Fill in the blank(s) with the appropriate word(s).
The thymus is most active during ________
A) childhood B) fetal development C) middle age D) old age
The average peak expiratory flow rate in a healthy adult is approximately:
A) 450 mL. B) 550 mL. C) 650 mL. D) 750 mL.