A patient takes a nitroglycerin tablet sublingually for chest pain. Nitroglycerin acts directly on smooth muscle, producing relaxation and vessel dilation. How would this relieve chest pain?

What will be an ideal response


Angina pectoris is thoracic pain caused by a fleeting deficiency in blood delivery to the myocardium, with resulting decreased oxygen being delivered to the cells. Because nitroglycerin acts as a vasodilator (similar to nitric oxide), blood flow is increased, promoting the delivery of oxygen to the cells.

Anatomy & Physiology

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Pheochromocytomas would stimulate hypersecretion of ________.

A. cortisol B. adrenocorticotropin C. aldosterone D. epinephrine and norepinephrine

Anatomy & Physiology

Explain why a pseudostratified epithelium is not truly stratified

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Anatomy & Physiology

How do large polar molecules, such as the protein hormones secreted by endocrine cells or bacteria ingested by white blood cells, leave or enter the cell?

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Anatomy & Physiology