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- Figure 16.2 When bacteria are destroyed by leukocytes, pyrogens are released into the blood. Pyrogens reset the body’s thermostat to a higher temperature, resulting in fever. How might pyrogens cause the body temperature to rise?
- Figure 16.7 Which of the following statements
- Chyme is a mixture of food and digestive juices that is produced in the stomach.
- Food enters the large intestine before the small intestine.
- In the small intestine, chyme mixes with bile, which emulsifies fats.
- The stomach is separated from the small intestine by the pyloric sphincter. about the digestive system is false?
- Figure 16.9 Which of the following statements about the human respiratory system is false?
- When we breathe in, air travels from the pharynx to the trachea.
- The bronchioles branch into bronchi.
- Alveolar ducts connect to alveolar sacs.
- Gas exchange between the lungs and blood takes place in the alveolus.
- Figure 16.10Which of the following statements about the circulatory system is false?
- Blood in the pulmonary vein is deoxygenated.
- Blood in the inferior vena cava is deoxygenated.
- Blood in the pulmonary artery is deoxygenated.
- Blood in the aorta is oxygenated.
- Figure 16.14 Goiter, a disease caused by iodine deficiency, results in the inability of the thyroid gland to form T3 and T4. The body typically attempts to compensate by producing greater amounts of TSH. Which of the following symptoms would you expect goiter to cause?
- Hypothyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity.
- Hyperthyroidism, resulting in weight loss, profuse sweating and increased heart rate.
- Hyperthyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity.
- Hypothyroidism, resulting in weight loss, profuse sweating and increased heart rate.
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