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p final 151-200
| Question | Answer |
|---|---|
| Which of the following combinations in arterial blood could cause an increase in the respiratory rate? | Increased PCO2, decreased arterial pressure, decreased pH, decreased PO2 |
| Gas exchange, the lungs’ main and vital function, takes place in the: | alveoli |
| Which of the following is not a regulated process associated with the functioning of the respiratory system? | Control of cell metabolism rate |
| The major form by which carbon dioxide is transported in the circulatory system is: | as bicarbonate ions. |
| When the pressure in the lung is greater than atmospheric pressure: | expiration occurs. |
| Which of the following helps determine the amount of oxygen that diffuses into the blood each minute? | All of the above help determine the amount of oxygen that diffuses into the blood each minute. |
| The vital capacity is equal to the sum of the: | inspiratory reserve volume, tidal volume, and expiratory reserve volume. |
| Dalton law states that the partial pressure of a gas in a mixture of gases is _____ to the total pressure of the mixture. | directly related to the concentration of that gas in the mixture and |
| Ciliated cells lining the respiratory tract: | help move the mucus blanket toward the pharynx. |
| One hundred milliliters of arterial blood contains approximately what volume percent of oxygen? | 20% |
| An end product of fat digestion is: | glycerol |
| Glucose moves from the GI tract into the circulatory system by the process of: | cotransport. |
| The purpose of peristalsis is to: | propel food forward along the GI tract. |
| The hormone that inhibits gastric muscle, slowing passage of food into the duodenum, is called: | gastric inhibitory peptide. |
| The intestinal hormone cholecystokinin: | causes the pancreas to increase exocrine secretions high in enzyme content. opposes the influence of gastrin on gastric parietal cells. stimulates the contraction of the gallbladder. does all of the above. |
| Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus? | Oropharynx |
| The process of fat emulsification consists of: | breaking fats into small droplets. |
| The enterogastric reflex causes: | inhibition of gastric peristalsis. |
| When classified according to the kind of chemical reactions catalyzed, digestive enzymes are referred to as _____ enzymes. | hydrolyzing |
| Which of the following is not a function of the liver? | Secretion of insulin |
| Cellulose is a residue of digestion that comes from: | carbohydrates. |
| Which of the following is a disaccharide? | sucrose |
| Hydrolysis refers to: | using water to split larger compounds into smaller ones. |
| Which step of deglutition is under voluntary control? | Oral stage |
| Which phase(s) of gastric secretion is(are) stimulated by the sight, taste, and smell of food? | Cephalic phase |
| Which of the following would be important in treating metabolic alkalosis? | Chloride ions |
| The total fluid or water content of the human body ranges from _____ of its total weight. | 45% to 75% |
| Which of the following substances is released by the juxtaglomerular cells? | renin |
| Which of the following would have the greatest concentration of hydrogen ions? | pH2 |
| What is the most abundant cation in intracellular fluid? | Potassium |
| Which of the following is a true statement? | Arterial blood has an average pH of 7.41. |
| Water normally leaves the body through _____ exits. | four |
| In young adults, the percentage of body weight composed of water will average about _____ for males and _____ for females. | 60%; 50% |
| Which of the following is true of total body water? | Overweight people have lower water content per kilogram of body weight than slender people. |
| When the kidney secretes hydrogen ions, it primarily reabsorbs _____ ions. | sodium |
| In accordance with the physical laws governing filtration and osmosis, which of the following statements is true? | Blood colloid osmotic pressure tends to draw fluid back into the capillaries. |
| Which of the following is not one of the seven basic solutions used for parenteral therapy? | liquid protein |
| Which of the following is not a method used for parenteral administration? | by mouth |
| Which of the following ratios of base bicarbonate to carbonic acid will maintain a normal pH? | 20:1 |
| Cerebrospinal fluid is part of the _____ fluid. | extracellular |
| Functional sterility results when the sperm count per milliliter falls below _____ million. | 25 |
| The main factor determining male fertility is the: | number of sperm ejaculated. |
| Which of the following hormones causes ejection of milk into the mammary ducts, making it accessible for the infant? | Oxytocin |
| Fertilization of an ovum most often occurs in the: | fallopian tube. |
| Which of the following is a part of the supporting structures of the male reproductive system? | scrotum |
| A high blood concentration of estrogens: | stimulates epithelial cells of the endometrium to proliferate. |
| The follicular phase of the menstrual cycle is the same as the: | postmenstrual phase. |
| Which of the following is not true of FSH? | It stimulates the secretion of testosterone. |
| The increase in blood estrogens during the postmenstrual phase of the menstrual cycle produces all of the following changes in the uterus except: | decreased myometrial contractions. |
| The main advantage of sexual reproduction over asexual reproduction is: | there is greater diversity in the offspring. |
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