| The efflux of potassium ions hyperpolarizes the cell membrane, resulting in vascular smooth muscle relaxation. |
| External injury to the alveolar wall may be the counterpart of arteriolar smooth muscle injury. |
| Nitroglycerin causes relaxation of vascular smooth muscle in both arteries and veins, although the effect on veins predominates at low doses. |
| The areola contains softer and darker skin tissue which surrounds the nipple and which also contains smooth muscle fibers. |
| This drug relaxes arteriolar smooth muscle and has been used in the treatment of severe hypertension. |
| The mass also contained cystic spaces lined by columnar epithelium, sebaceous glands, cartilage, smooth muscle, and pancreatic acini. |
