CCMA NHA Test Quiz

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1. What is the number of teeth in adult humans?

Explanation

Adult humans typically have 32 teeth. This includes 8 incisors, 4 canines, 8 premolars, and 12 molars (including 4 wisdom teeth). These teeth are important for chewing and breaking down food, as well as for speech and maintaining the structure of the face.

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About This Quiz
CCMA NHA Test Quiz - Quiz

Just like many other professional fields, there are certain examinations for individuals in the medical profession. The CCMA NHA exam is one of them. The NHA exam is... see moreorganized for medical assistants as a requirement for the issuance of the license. These tests assess your preparation for the exam. Attempt it now! see less

2. Which of these is not active in respiration?

Explanation

The liver is not directly involved in the process of respiration. Respiration primarily occurs in the lungs, where oxygen is taken in and carbon dioxide is expelled. The bronchi and alveoli are structures within the lungs that facilitate the exchange of gases. The liver, on the other hand, is responsible for various metabolic functions such as detoxification, storage of nutrients, and production of bile. While the liver plays a crucial role in overall metabolism, it is not directly involved in the process of respiration.

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3. What is the total number of bones in the human body?

Explanation

The correct answer is 206 bones. The human body has a total of 206 bones, which includes the bones in the skull, spine, ribcage, arms, and legs. These bones provide structure, support, and protection for the body, allowing us to move and perform various functions.

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4. Where does erythropoiesis take place?

Explanation

Erythropoiesis is the process of producing red blood cells. It takes place in the bone marrow, specifically in the spongy or cancellous bone. The bone marrow is responsible for producing all types of blood cells, including erythrocytes (red blood cells). The bone marrow contains stem cells that differentiate into erythroblasts, which then mature into red blood cells. The liver and kidney also play a role in erythropoiesis by producing and releasing erythropoietin, a hormone that stimulates red blood cell production. However, the actual process of erythropoiesis occurs in the bone marrow.

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5. What is the product of heart rate and peripheral resistance?

Explanation

The product of heart rate and peripheral resistance is known as cardiac output. Cardiac output is the amount of blood that the heart pumps in one minute and is calculated by multiplying the heart rate (the number of times the heart beats per minute) by the peripheral resistance (the resistance to blood flow in the blood vessels). This measure is important in assessing the overall function of the heart and the efficiency of blood circulation in the body.

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6. Which of these drains the kidneys?

Explanation

The renal vein drains the kidneys. It is responsible for carrying deoxygenated blood, waste products, and excess water from the kidneys back to the heart. This blood is then filtered by the kidneys to remove toxins and maintain the body's fluid balance. The other options listed (renal artery, aorta, and capillaries) are involved in the blood supply to the kidneys but do not directly drain them.

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7. Which of these supply the liver?

Explanation

The hepatic artery supplies blood to the liver. It carries oxygenated blood from the heart to the liver, providing the liver with the necessary oxygen and nutrients for its metabolic functions. The hepatic artery is an essential component of the liver's blood supply, working in conjunction with the hepatic portal vein, which brings nutrient-rich blood from the gastrointestinal tract to the liver. Together, these blood vessels ensure the liver receives a continuous supply of oxygen and nutrients for its vital functions.

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8. Which of these contain the largest form of mitochondria?

Explanation

Cardiac cells contain the largest form of mitochondria. Mitochondria are responsible for producing energy in cells through a process called cellular respiration. Cardiac cells are found in the heart, which requires a constant and high supply of energy to function properly. Therefore, it makes sense that cardiac cells would have larger mitochondria to meet the energy demands of the heart.

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9. Which of these is not a lymphatic structure?

Explanation

The thorax is not a lymphatic structure. The thymus, spleen, and tonsils are all lymphatic structures that play important roles in the immune system. The thymus is responsible for the development and maturation of T-cells, the spleen filters the blood and helps to remove old or damaged red blood cells, and the tonsils help to trap and remove pathogens that enter the body through the mouth and nose. The thorax, on the other hand, is a region of the body that contains vital organs such as the heart and lungs, but it is not directly involved in the lymphatic system.

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10. Which of these secretes erythropoietin?

Explanation

The kidney secretes erythropoietin. Erythropoietin is a hormone that stimulates the production of red blood cells in the bone marrow. The kidney detects low oxygen levels in the blood and releases erythropoietin to stimulate the production of more red blood cells, which carry oxygen to the body's tissues. This hormone plays a crucial role in maintaining the body's oxygen balance and is primarily produced by the kidneys.

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What is the number of teeth in adult humans?
Which of these is not active in respiration?
What is the total number of bones in the human body?
Where does erythropoiesis take place?
What is the product of heart rate and peripheral resistance?
Which of these drains the kidneys?
Which of these supply the liver?
Which of these contain the largest form of mitochondria?
Which of these is not a lymphatic structure?
Which of these secretes erythropoietin?
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