What is the hormone synthesized from molecules of the neurotransmitter serotonin in the pineal gland?
a. oxytocin
b. pinealtonin
c. melatonin
d. melanocyte-stimulating hormone
Ans: c. melatonin
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A protein is found in blood that is produced by the pancreas and acts on receptors of cells in the liver. What type of physiological regulator is it most likely to be?
A. An autocrine signal B. A neurotransmitter C. An enzyme D. A hormone E. A paracrine signal
The energy equivalent of O2 is
a. 4.8 kilocalories of energy liberated per liter of O2 consumed. b. used to indirectly measure the metabolic rate. c. the energy required to raise 1 gm of H2O 1°C. d. both (a) and (b) above. e. all of these answers.
Which of the following is a sesamoid bone?
A. Fibula B. Tarsal C. Patella D. Tibia E. Metatarsal
Maternal blood oxygen levels increase dramatically during the third trimester.
Answer the following statement true (T) or false (F)