1.
Explanation
The #1 refers to the aorta, which is the largest artery in the body. It carries oxygenated blood from the heart to the rest of the body.
2.
Explanation
The correct answer for this question is the right atrium. The question is asking for the identity of "#2," which is referring to a specific anatomical structure. In this case, the correct answer is the right atrium, which is one of the four chambers of the heart.
3.
Explanation
The correct answer is the right ventricle. The question is asking for the identification of #3, and the correct answer is the right ventricle.
4.
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What is #4? (HINT: it's a valve)
Explanation
The correct answer is tricuspid valve. The question asks for the identification of #4, which is hinted to be a valve. The tricuspid valve is a valve located between the right atrium and right ventricle of the heart. It has three cusps or flaps that help regulate the flow of blood from the atrium to the ventricle.
5.
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What is #5? (HINT: it's a valve)
Explanation
The correct answer is pulmonary valve. The question asks for the identification of #5, which is hinted to be a valve. The pulmonary valve is a valve located between the right ventricle and the pulmonary artery in the heart. It prevents the backflow of blood from the pulmonary artery into the right ventricle.
6.
Explanation
The correct answer is pulmonary artery. The question is asking for the identification of #6, and the correct answer is the pulmonary artery.
7.
Explanation
The correct answer is "pulmonary veins" because the question asks for a plural noun, and "pulmonary veins" is a plural noun. The term refers to the veins that carry oxygenated blood from the lungs to the heart.
8.
9.
10.
Explanation
The correct answer is vena cava superior, superior vena cava. Both terms refer to the same structure in the human body, which is a large vein that carries deoxygenated blood from the upper body to the heart. The vena cava superior is located above the heart and is responsible for returning blood from the head, neck, and upper limbs. The term "superior vena cava" is also commonly used to describe this vein.
11.
Explanation
The correct answer is "vena cava inferior, inferior vena cava." The vena cava inferior, also known as the inferior vena cava, is a large vein that carries deoxygenated blood from the lower body back to the heart. It is located on the right side of the body and enters the right atrium of the heart.
12.
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What is #12? (HINT: it's a valve)
Explanation
The mitral valve is the correct answer because it is a type of valve in the human heart. It is located between the left atrium and the left ventricle and is responsible for preventing the backflow of blood from the left ventricle to the left atrium during ventricular contraction. The mitral valve consists of two cusps or flaps, hence the name "mitral" which means "resembling a bishop's mitre."
13.
Matching: (Write your answer like this: x y z)
Pulmonary: ___ Coronary:____ Systemic:______ a. Heart b. Body c. Lungs
Explanation
The correct answer is c a b. The term "pulmonary" refers to the lungs, so the first blank should be filled with "Lungs". The term "coronary" refers to the heart, so the second blank should be filled with "Heart". The term "systemic" refers to the body as a whole, so the third blank should be filled with "Body". Therefore, the correct answer is c a b, which represents Lungs, Heart, Body.