River Basins. A river basin is an area of land drained by a river and its tributaries. River basins have typical features, these include: Tributaries-smaller rivers flowing into a larger river. A Watershed-an area of highland surrounding the river basin.A confluence-where a river joins another river.Source-the start of a river. river basin is an area of land drained by a river and its tributaries. River basins have typical features, these include: Tributaries-smaller rivers flowing into a larger river. A Watershed-an area of highland surrounding the river basin.
Fatigue. Fatigue is one of the most common side effects of radiation therapy for breast cancer. Fatigue may be caused by anemia, poor appetite or depression. It may also be related to toxic substances that are produced when cancer cells break down and die.adiation pneumonitis. Radiation pneumonitis is an uncommon side effect of radiation therapy for breast cancer. It may occur a few weeks to several months after radiation treatment. It occurs more often in women who receive methotrexate and 5-fluorouracil (Adrucil, 5-FU) at the same time as radiation therapy.
Nausea and vomiting. Nausea and vomiting are not common side effects of radiation therapy to the brain, but they can occur. Nausea and vomiting may also occur due to swelling of the brain (cerebral edema). Nausea and vomiting may occur after 1â2 weeks of radiation therapy.