What do blood cells carry? A. water B. oxygen and nutrients C. food 相关知识点: 试题来源: 解析 B。中文解析:文章中提到“Blood cells carry oxygen and nutrients to different parts of our body”,所以血细胞携带氧气和营养物质,答案是 B。
thebodycausesbloodtomoveclosertotheinner organstokeepthem warm. 1 Also,those whotakeacoldshowerinthe morningaremostlikelytobemoreenergeticthan peoplewhotakeahotshower. 2 This,in turn,increasesyouroxygenintakeandheartrate, leadingtoimprovedawarenessandamoreenergeticstate. Besides,asyoutakeacoldshower,yourbod...
For example, an incredible development project by the University of South Australia is for drones to eventually be able to survey populations for disease by reading the blood oxygen levels of humans from the air. They’ll also be able to scan for other vital signs, like coughing and a high...
5.thrilln.惊险,刺激v.使非常兴奋→thrilledadj.非常兴奋的→thrillingadj.令人激动的→thrillern.惊险小说 6.unawareadj.未觉察到的,未意识到的→awareadj.意识到的;明白的→awarenessn.意识 7.wooln.羊毛,毛织物→woolen(=woollen)adj.羊毛的;毛料的 8.bleedingn.流血,失血→bleedv.流血→bloodn.血 9.serva...
When breathing gets interrupted, your oxygen levels dip. Your brain notices and wakes you up suddenly to get some more air. If you have sleep apnea, you may have noticed waking up suddenly throughout the night,gasping for air. This reaction can activate yourfight or flightsystem, which can...
Blood is a thick, red fluid which carries oxygen, water and food to all parts of the body. It keeps the body at the right temperature (温度) andprotects it from disease. If you lose a lot of blood, you need new blood. You can receive new bloodfrom other people. This is called a...
Blood then leaks out of the vessel and slows or stops blood flow to the brain. The leaked blood may also collect in one area. This is called a hematoma. A hematoma can create pressure that keeps oxygen from flowing to the brain. Brain damage may happen within a few minutes if the ...
You may need extra oxygen if your blood oxygen level is lower than it should be. You may get oxygen through a mask placed over your nose and mouth or through small tubes placed in your nostrils. Ask your healthcare provider before you take off the mask or oxygen tubing.Treatment...
"These amino acids are usually in competition with tryptophan—the precursor of serotonin—to cross the blood-brain barrier, meaning to enter the brain", she says. "So with less of these amino acids available, it increases the chance that tryptophan is picked up, which can result in an incr...
Medicare covers much of the care and services you receive during a hospital stay, but there are limitations to how much and how long this insurance will pay. Elaine K. HowleyDec. 13, 2024 Exercises to Lower Cholesterol All physical activity is good for your health, but these exercises may ...