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1 | |
The process of maintaining a constant internal environment is called |
| | A) | Environmental control. |
| | B) | Systemic integrity. |
| | C) | Homeostasis. |
| | D) | None of the above. |
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2 | |
Which of the following statements about blood is/are true? |
| | A) | The cellular portion of the blood is called the plasma. |
| | B) | Anemia is a decrease in the oxygen-carrying capacity of the blood. |
| | C) | Carbonic anhydrase is the carbon dioxide carrying molecule in the blood. |
| | D) | All of the above. |
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3 | |
Which statement(s) is/are true about the white blood cells? |
| | A) | The lymphocytes produce antibodies and are involved in cell-mediated immunity. |
| | B) | When the white blood cells break up, they form platelets. |
| | C) | The white blood cells are responsible for transporting carbon dioxide. |
| | D) | All of the above. |
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4 | |
Which of the following is the correct pathway for a drop of blood? |
| | A) | Right atrium, right ventricle, body, left atrium, left ventricle, lungs, right atrium |
| | B) | Right ventricle, right atrium, body, left ventricle, left atrium, lungs, right ventricle |
| | C) | Right atrium, right ventricle, lungs, left atrium, left ventricle, body, right atrium |
| | D) | Right ventricle, right atrium, lungs, left ventricle, left atrium, body, right ventricle |
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5 | |
As the blood leaves the heart on its systemic circuit, which is the correct pathway for a drop of blood? |
| | A) | Artery, arteriole, capillary, venule, vein |
| | B) | Artery, vein, arteriole, venule, capillary |
| | C) | Vein, venule, capillary, arteriole, artery |
| | D) | Vein, artery, venule, arteriole, capillary |
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6 | |
Which of the following statements is/are true about the lymphatic system? |
| | A) | Lymph is produced when blood pressure forces water and small molecules through the walls of the capillaries. |
| | B) | The lymphatic vessels empty into the circulatory system. |
| | C) | Lymph nodes filter a portion of the body's fluids. |
| | D) | All of the above. |
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7 | |
Which of the following statements about the lungs is/are true? |
| | A) | Rings of cartilage support the trachea and the broncioles to prevent their collapsing. |
| | B) | The bronchioles, which are capable of constricting, deliver air to the alveoli. |
| | C) | The ciliated cells that line the bronchi function primarily in the sweeping of wastes out of the lungs. |
| | D) | All of the above. |
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8 | |
Breathing mechanisms include |
| | A) | The contraction of the diaphragm, a large muscular organ separating the chest cavity from the abdominal cavity. |
| | B) | The stimulation of the breathing system by an increase in carbon dioxide in the blood. |
| | C) | The necessity of oxygen diffusing into the cells. |
| | D) | All of the above. |
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9 | |
Which of the following statements is/are true? |
| | A) | Teeth are involved in increasing the surface area of the food. |
| | B) | Salivary amylase initiates the chemical breakdown of proteins. |
| | C) | The epiglottis is a flap of tissue covering the opening to the esophagus. |
| | D) | All of the above. |
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10 | |
The stomach empties into the |
| | A) | Duodenum. |
| | B) | Pancreas. |
| | C) | Chyme. |
| | D) | Large intestine. |
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11 | |
Bile is produced in the __________ and functions in the __________. |
| | A) | Small intestine / large intestine |
| | B) | Pancreas / small intestine |
| | C) | Liver / small intestine |
| | D) | Gallbladder / small intestine |
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12 | |
The villus |
| | A) | Increases the surface area of the small intestine. |
| | B) | Contain a lacteal. |
| | C) | Allow for the efficient uptake of nutrients from the small intestine. |
| | D) | All of the above. |
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13 | |
The vascular system that takes nutrients from the intestine to the liver includes the |
| | A) | Glomerulus. |
| | B) | Hepatic portal vein. |
| | C) | Gastro-liver transport system. |
| | D) | None of the above. |
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14 | |
Which of the following statements is/are true about the loop of Henle? |
| | A) | It is located between the proximal and distal convoluted tubules. |
| | B) | It acts as a collecting duct for excess hydrogen ions. |
| | C) | It is the primary structure involved in the excretion of glucose from the vascular system. |
| | D) | All of the above. |
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15 | |
When you are thirsty or dehydrated, |
| | A) | The hypothalamus produces less ADH and thus conserves the water in your system. |
| | B) | The hypothalamus produces more ADH and thus conserves the water in your system. |
| | C) | The kidney produces less ADH and thus conserves the water in your system. |
| | D) | The kidney produces more ADH and thus conserves the water in your system. |
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16 | |
Reabsorption of water occurs in association with |
| | A) | lungs. |
| | B) | duodenum. |
| | C) | loop of Henle. |
| | D) | liver. |
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17 | |
The primary structures involved in pumping blood are the |
| | A) | veins. |
| | B) | atria. |
| | C) | capillaries. |
| | D) | ventricles. |
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18 | |
Fats are broken down through the action of |
| | A) | salivary amylase. |
| | B) | bolus. |
| | C) | pepsin. |
| | D) | bile. |
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19 | |
The fluid portion of the blood that leaves the capillaries and surrounds the cells is |
| | A) | hemoglobin. |
| | B) | edema. |
| | C) | lymph. |
| | D) | lacteal. |
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20 | |
In the kidneys, glucose molecules are reabsorbed by the |
| | A) | glomerulus. |
| | B) | proximal convoluted tubule. |
| | C) | distal convoluted tubule. |
| | D) | microvilli. |
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21 | |
Semilunar valves prevent the flow of blood into the |
| | A) | aorta. |
| | B) | atria. |
| | C) | ventricles. |
| | D) | arteries. |
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22 | |
Which one of the following results in an increase in surface area? |
| | A) | chewing |
| | B) | reabsorption |
| | C) | breathing |
| | D) | salivation |
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23 | |
Which cells are immune defenders and phagocytes? |
| | A) | neutropohiles |
| | B) | T-cells |
| | C) | B-cells |
| | D) | RBCs |
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24 | |
Blood is carried through vessels to all parts of the body except the lungs by |
| | A) | pulmonary circulation. |
| | B) | the Pulmonary artery. |
| | C) | systemic circulation. |
| | D) | the lymphatic system. |
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25 | |
Which of the following is FALSE concerning a cell that grows larger? |
| | A) | its volume increases |
| | B) | its metabolic needs increase |
| | C) | it must exchange more materials with the environment |
| | D) | its surface-area-to-volume ratio increases |
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26 | |
A blood pressure reading (120/80 for example) is |
| | A) | pressure while the heart is not contracting/pressure while heart is contracting. |
| | B) | pressure while exercising/ pressure while at rest. |
| | C) | systolic blood pressure/ diastolic blood pressure. |
| | D) | diastolic blood pressure/ systolic blood pressure. |
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27 | |
As air passes through the lungs it follows the path: |
| | A) | trachea-->bronchi-->bronchioles-->alveoli. |
| | B) | trachea-->bronchioles-->bronchi-->alveoli. |
| | C) | bronchi-->trachea-->alveoli-->bronchioles. |
| | D) | bronchioles-->alveoli-->bronchi-->trachea. |
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28 | |
The structure of ________ provide an example the human body maximizing surface area for the exchange of materials. |
| | A) | capillaries |
| | B) | alveoli |
| | C) | villi |
| | D) | all of the above |
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29 | |
Bile produced by the liver is stored in the |
| | A) | duodenum. |
| | B) | gallbladder. |
| | C) | blood. |
| | D) | pancreas. |
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30 | |
The levels of water, hydrogen ions, salts and urea in the blood are regulated by the |
| | A) | liver. |
| | B) | kidneys. |
| | C) | bladder. |
| | D) | rectum. |
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