Bicarbonate ions can combine with free H+, removing a source of acidity and opposing acidosis
Indicate whether the statement is true or false
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What will be an ideal response?
An erection of the penis is caused by
A. semen pressure from the testes and ductus deferens. B. muscle flexion of the penile muscles. C. increased secretions of lymph into the spongy tissue. D. blood filling the erectile bodies and compressing the veins. E. ejaculatory muscles.
A light skinned person who is very cold may have a pale appearance. Which of the following is the best explanation for why this might be so?
A) The cold has slowed the movement of blood. B) The person's blood vessels in the dermis have undergone vasoconstriction (narrowing). C) The person is in fear of hypothermia (sever cold exposure). D) The person's blood vessels in the epidermis have undergone vasodilation (widening).
An individual's measured range of motion upon abduction of the right shoulder is 90 degrees and upon adduction is 120 degrees. Which of the following statements about range of motion is true?
A) The range of motion at the shoulder joint is above average for adduction and above average for adduction. B) The range of motion at the shoulder joint is above average for each movement. C) The range of motion at the shoulder joint is below average for both abduction and adduction. D) The range of motion at the shoulder joint is below average for adduction and normal for adduction.