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Final part III
| Question | Answer |
|---|---|
| The loudness of a persons voice depends on: | The force with which air rushes across the vocal folds |
| The walls of the aveoli are composed of two types of cells, type I and type II. The function of type II is: | To secrete surfactant |
| The pleurae are vital to the integrity of the lungs because: | They produce a lubricating serous secretion, allowing the lungs to glide over the thorax wall during breathing |
| The statement "in a mixture of gases, the total pressure is the sum of the individual partial pressures of gases in the mixture" paraphrases: | Dalton's Law |
| Surfactant helps to prevent the alveoli from collapsing by: | Interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid |
| With the Bohr effect, more oxygen is released because: | A decrease in pH (acidosis) weakens the hemoglobin-oxygen bond |
| The most powerful respiratory stimulus for breathing in a healthy person is: | Increase in CO2 |
| Nerve impulses from _____will result in inspiration | The Ventral respiratory Group |
| Which of the following does not influence the increase in ventilation that occurs as exercise is initiated? | Decrease in lactic acid levels |
| The lung volume that represents the total volume of exchangeable air is the: | Vital capicity |
| Respiratory control centers are located in the | Medulla and Ponds |
| The amount of air that can be inspired above the tidal volume is called? | Inspiratory Reserve |
| Which statement about CO2 is incorrect? | More CO2 dissolves in the blood plasma than is carried in the RBD'd |
| Which respiratory-associated muscle would contract is were to blow up a balloon? | Internal Intercostals and abdominal muscles would contrace |
| Which of the following correctly describes mechanisms of CO2 transport? | The chloride shift mechanism enhances CO2 transport |
| The respiratory membrane is a combination of? | Alveolar and capillary walls and their fused basal lamina |
| The factors responsible for holding the lungs to the throax wall are: | Surface tension from pleural fluid and negative pressure in the pleural cavity |
| The erythrocyte count increases after a while when an individual goes from a low to a high altitude because: | The concentration of oxygen and/or total atmospheric pressure is lower at high altitudes |
| Terminal bronchioles are lined with ______ epithelium | Cubodial |
| The sheets of peritoneal membrane that hole the digestive tract in place are called: | Mesentaties |
| The mechanical and chemical receptors that control digestive activity are located: | In the walls of the tract organs |
| The structure known as the fauces is the: | Passageway between the oral cavity and the pharynx |
| The pilcae circulares and intestinal villi are found in which of the four layers of the alimentary tube wall? | Mucosa |
| The structures that produce new cells for the mucosa of the small intestine are the: | Intestinal Crypts |
| Which of the following is the true concerning the number and type of permanent teeth? | There are 32 permanent, and the wisdom teeth are the last to emerge |
| In addition to storage and mechanical breakdown of food, the stomach: | Initiates protein digestion and denatures proteins |
| Gastrin is a digestive hormone that is responsible for the stimulation of acid secretions in the stomach. These secretions are stimulates bu the presence of: | Protein & peptide fragments |
| Pepsinogen, a digestive enzyme, is secreted by the: | Chief cells of the stomach |
| Short-chain triglycerides found in foods such as butterfat molecules in milk are split by a specific enzyme in preparation for absorption. Which of the following enzymes is responsible? | Lipase |
| Parietal cells of the stomach produce: | Hydrochloric Acid |
| Which of the following is not a phase of gastric secretion? | Entrogastric |
| Digestion of which of the following would be affected the most if the liver were severely damaged? | Lipids |
| Nervous control of gastric secretion is provided by: | The vagus nerve and enteric plexus |
| Which of the following is not a characteristic of the large intestine? It: | Is no longer than the small intestine |
| Select the correct statement about the digestive process: | Chyme entering the duodenum can decrease gastric motility via the enterogastirc reflex |
| Chemical digestion in the small intestine: | Cholecystokinin (CCK), an intestinal hormone responsible for gallbladder contraction |
| Select the correct statement about absorption: | If intact proteins ate transported the villus eplithelium, an immune response may be generated |
| You have just eaten french fries. buttered toast, ice cream, and whole milk. Which of the following glands would be active in helping you to digest this food? | The pancreas |
| The ingestion of a meal high in fat content would cause which of the following to occur? | Bile would be released from the gallbladder to emulsify the fat in the dudenum. |
| The longest portion of the small intestine is the: | Illum |
| Dietary fats are important because: | They help the body absorb fat-soluble vitamins. |
| The term metabolism is best defined as: | Biochemical reactions involved in building cell molecules or breaking down molecules for energy. |
| Which of the choices below describes the pathway of cellular respiration (the complete oxidation of glucose)? | Glycoylsis, Krebs Cycle, ETC, Oxidative phosphorylation |
| Lipogenesis occurs when: | Cellular ATP and glucose levels are high |
| Glycogen is formed in the liver during the: | Post absorptive state |
| Glycolysis is best defined as the: | Conversion of glucose into two molecules of pyruvic acid. |
| THe most abundant dietary lipids are: | Triacylgercides |
| In carbohydrates metabolism, the carbohydrates: | Are converted into fat is present in excess |
| In gluconeogensis, amino acids and________are converted to glucose | Glycerol |
| Heat-loss mechanisms do not include______ | Vasoconstriction of peripheral blood vessels |
| Many factors influence BMR. What is the most critical factor? | The ratio of surface area to volume (weight) of the body |
| Which of the following does not occur int he mitochondria? | Glycolsis |
| Which of the following food groups may be considered complete protein? | Eggs,milk,yogurt,meat,fish |
| Conditions that promote the oxidative deamination of amino acidsinclude: | Excessive amounts of protein in the diet. |
| Select the correct statement: | Cellular respiration is a metabolic process |
| Fat burning causes am accumulation of acetyl-CoA, which the liver converts to: | Ketones |