Which of the following hormones exhibits a marked diurnal variation in secretion?

a. aldosterone
b. cortisol
c. thyroid hormone
d. epinephrine
e. calcitonin


B

Anatomy & Physiology

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After a day of fasting during Ramadan, Amira's blood Na+ level is quite low. Which of the following is likely to occur? 

A. A decrease in plasma volume, which induces a decrease in GFR and an increase in Na+ reabsorption rate B. A decrease in plasma volume, which induces a decrease in GFR and Na+ reabsorption rate C. A decrease in plasma volume, which induces an increase in GFR and Na+ reabsorption rate D. An increase in plasma volume, which induces an increase in GFR and a decrease in Na+ reabsorption rate E. An increase in plasma volume, which induces an increase in GFR and Na+ reabsorption rate

Anatomy & Physiology

Which of the following brain waves has the highest frequency?

A. Theta B. Delta C. Beta D. Gamma E. Alpha

Anatomy & Physiology

Which hormone stimulates the secretion of estrogen and stimulates sperm production?

A. LH B. Androgens C. FSH D. Testosterone

Anatomy & Physiology

A small sac of gland cells arranged around a space into which they secrete their product is called a(n) __________.

A. areolus B. acinus C. ductus D. lobule E. varix

Anatomy & Physiology