Answer:
A. . Blood from the veins enters the ventricles.
C. Atria push blood into the ventricles
Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
1. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve.
2.The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.
3. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.
4. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
I would guess that the posture would be answer B. Awkward. Because it sounds like of like the person is slouching.
I hope I helped! If this was the right answer, please mark me brainliest!
<span>B is the correct answer. Infancy typically refers to the period immediately after birth until a young human starts walking, from which point 'toddler' becomes the term - referring to their way of walking. During toddlerhood, young humans get more confident walking and start choosing other methods of movement, for example skipping. They also start to learn simple concepts like shapes, colours, and so on. Early childhood encompasses both infancy, toddlerhood and later years after toddlerhood - this is, therefore, also a correct answer. </span>
It all begins with the hypothalamus, the gland responsible for regulating our body temperature and triggering the processes that balance the fluids in our bodies. When the hypothalamus detects too little water in our blood, it signals the release of an anti-diuretic hormone that causes the kidneys to remove less water from the blood. The result? We pee less, and when we do, our urine is more concentrated and darker in color. At this point the brain also tells us we’re thirsty, and once we sip on some water or consume something hydrating our water levels return to normal . Similarly, when our body temperature rises either from fever, working out, or being in a warm environment, our bodies try to lower our temperature by sweating: When sweat evaporates from our skin, it takes some heat with it, helping to cool us off.
