Ques: Q: The right atrium receives all of the systemic venous return. most of the blood flows into either the superior vena cava or this? Read this paragraph and choose the correct option from the provided answers: The right atrium receives all of the systemic venous return. Most of the blood flows into either the superior vena cava or inferior vena cava. If you draw an imaginary line at the level of the diaphragm, systemic venous circulation from above that line will generally flow into the superior vena cava; this includes blood from the head, neck, chest, shoulders, and upper limbs. The exception to this is that most venous blood flow from the coronary veins flows directly into the coronary sinus and from there directly into the right atrium. Beneath the diaphragm, systemic venous flow enters the inferior vena cava, that is, blood from the abdominal and pelvic regions and the lower limbs. Choices: - resulted vena cava - identical vena cava - exterior vena cava - inferior vena cava A:
Ans: inferior vena cava

Ques: Q: What is the largest artery in the body called? Read this paragraph and choose the correct option from the provided answers: Arteries are muscular blood vessels that carry blood away from the heart. They have thick walls that can withstand the pressure of blood being pumped by the heart. Arteries generally carry oxygen-rich blood. The largest artery is the aorta , which receives blood directly from the heart. Choices: - carotid - subclavian - femoral - aorta A:
Ans: aorta

Ques: Q: A plane mirror has a flat reflective surface and forms only which kind of images? Read this paragraph and choose the correct option from the provided answers: Most mirrors are plane mirrors. A plane mirror has a flat reflective surface and forms only virtual images. The image formed by a plane mirror is also life sized. But something is different about the image compared with the real object in front of the mirror. Left and right are reversed. Look at the man shaving in Figure below . He is using his right hand to hold the razor, but his image appears to be holding the razor in the left hand. Almost all plane mirrors reverse left and right in this way. Choices: - enlarged - spherical - reduced - virtual A:
Ans: virtual

Ques: Q: Lobsters are what kind of food source? Read this paragraph and choose the correct option from the provided answers: Lobsters are one kind of arthropod food source. Choices: - combination - mollusc - sauropod - arthropod A:
Ans:
arthropod