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SCI221 WK 7-13 QUIZ
NIGHTINGALE SCI221 PHYSIOLOGY WEEK 7-13 QUIZ
| Question | Answer |
|---|---|
| Dopamine, epinephrine, and norepinephrine are classified as: | catecholamines |
| Severe depression can be caused by a deficit in certain brain synapses of: acetylcholine. amines. amino acids. neuropeptides. | amines |
| Neurotransmitters are released in a synapse and bind to: Neurotransmitters are released in a synapse and bind to: presynaptic terminals. the synaptic cleft. the base of the axon. receptors on the postsynaptic neuron. | receptors on the postsynaptic neuron. |
| Which of the following is not one of the main chemical classes of neurotransmitters? Triglycerides Amines Amino acids Neuropeptides | Triglycerides |
| The cerebellum performs all of the following functions except: coordinates control of muscle action. helps control posture. controls cardiac function. controls skeletal muscles to maintain balance. | controls cardiac function. |
| Parasympathetic stimulation has no effect on any of the following areas except: sweat glands. skin blood vessels. the liver. the urinary bladder. | sweat glands |
| The part of the brain that assists in the maintenance of balance is the: medulla. pons. cerebellum. hypothalamus. | cerebellum |
| The vomiting reflex is mediated by the: cerebrum. medulla. thalamus. cerebellum. | medulla |
| the last step in the nonsteroid hormone mechanism of action is: joining with the G protein on the cell membrane. protein kinases activate other enzymes. adenyl cyclase is activated. cAMP is formed. | protein kinases activate other enzymes. |
| The somatic senses enable us to detect sensations, including: touch. temperature. pain. all of the above. | touch. temperature. pain. answer-all of the above. |
| Accommodation for near vision necessitates | an increase in the curvature of the lens. constriction of the pupils. convergence of the two eyes. Answer all of the above. |
| The major hormone produced by the corpus luteum is: progesterone. estrogen. LTH. chorionic gonadotropin. | progesterone |
| One of the few hormones that functions on a positive-feedback loop is: ADH. calcitonin. oxytocin. insulin. | oxytocin |
| The physiological mechanism that dissolves clots is known as | fibrinolysis |
| The vagus is said to act as a "brake" on the heart. This situation is called | vagal inhibition. |
| The difference between systolic pressure and diastolic pressure is called Korotkoff sounds. minute volume. pulse pressure. pressure gradient. | pulse pressure. |
| The internal environment of the human body is protected by the _____, which is(are) referred to as the first line of defense. | skin |
| Which organ has several functions, including defense, hematopoiesis, red blood cell and platelet destruction, and blood reservoir? thymus thyroid spleen thalamus | spleen |
| The lymphatic system serves various functions in the body. The two most important functions of this system are | fluid balance and immunity. |
| Lymphatics in the villi of the small intestines are called | lacteals |
| The primary organ of the lymphatic system is the | thymus |
| Excessive fluid in the pleural cavity would be most likely to cause: | decreased vital capacity. |
| About 98.5% of the oxygen carried by systemic arterial blood is attached to: | hemoglobin |
| The major form by which carbon dioxide is transported in the circulatory system is: | as bicarbonate ions. |
| During inspiration, the expansion of the lungs causes: | a decrease in alveolar pressure. |
| The term used to describe the volume of air exchanged during normal inspiration and expiration is: | tidal volume. |
| Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus? | Oropharynx |
| Which of the following is a disaccharide? Glucose Starch Sucrose Glycogen | Sucrose |
| An end product of fat digestion is: glycerol. glucose. glycogen. galactose. | glycerol |
| Which of the following is not a function of the liver? Detoxification Secretion of insulin Storage of iron and vitamins Production of bile | Secretion of insulin |
| Which of these is not an example of mechanical digestion? Moistening the food Changing food from large to small particles Propelling food through the digestive tract All of the above are examples of mechanical digestion. | Moistening the food |
| The substances absorbed into the lymph capillaries are: glycerol and fatty acids. glucose and glycerol. amino acids and fatty acids. glucose and amino acids. | glycerol and fatty acids. |
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majomajo