Which of the following molecules act as second messengers?

A. cAMP
B. Ca2+
C. Inositol triphosphate
D. All of the above


Answer: D. All of the above

Anatomy & Physiology

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The wall of an artery contains ____________________ and ____________________ connective tissue fibers

Fill in the blank(s) with correct word

Anatomy & Physiology

The function of the ________ is to produce ribosomal RNA.

A. centromere B. chromatin C. nucleolus D. lysosomes

Anatomy & Physiology

What would happen to the blood PCO2 of a patient who has an airway obstruction?

A) Blood PCO2 would increase, resulting in respiratory acidosis. B) Blood PCO2 would increase, resulting in respiratory alkalosis. C) Blood PCO2 would decrease, resulting in respiratory acidosis. D) Blood PCO2 would decrease, resulting in respiratory alkalosis. E) Blood PCO2 would increase, resulting in metabolic acidosis.

Anatomy & Physiology

Which structure is an important site for early blood cell formation and is the first of the extraembryonic membranes to form?

A. Chorion B. Zona pellucida C. Yolk sac D. Amnion

Anatomy & Physiology