MCQ: PreMed Cell Type

. 1. Which cell type produces antibodies?: a. Macrophages b. T-lymphocytes c. NK d. Plasma cells 2. Acute inflammation can be initiated by: a.Mast cell activation. b.Influx of neutrophils. c. An increase in vascular permeability. d. C3. Plasma cells: a. Derived from T lymphocytes b. Are derived B-lymphocytes c. Produce antibodies d. b&c 3. Which of the following does not protect body? a. Skin. b. Mucus. c. Gastric acid. d. Salivary amylase 7. A polymorph nuclear neutrophil (PMN): a. Is a bone marrow stem cell. b. Is closely similar to a mast cell. c. Contains microbicidal cytoplasmic granules. d. Is not a professional phagocytic cell. 8 Acute inflammation characteristically involves: a. Constriction of arterioles. b. Capillary endothelial cell enlargement. c. Influx of macrophages. Ed. Influx of neutrophils. 9. Non specific immunity comprise : a. Inflammation b. Complement system c. cellular immunity d. a &b 10.All the following statements about the natural killer cells are incorrect except: a. Destroy bacterial infected cells only b. Not like lymphocytes c. Their activities result in specific immunity d. They form a group of lymphocytes with no immunological memory 11.The functions of the complements include all the following except: a. Act as a chemotaxns b. Act as opsonins c. Enhance histamine secretion d. Is considered as a type of specific immunity 12.Which of the following is not cardinal signs of inflammation: a. Redness b. Hotness c. Swelling and pain d. coldness 13....................... is the structure which carry non oxygenated blood . a. pulmonary artery b. pulmonary veins c. Aorta d. non of the above …….……... hormone decrease blood calcium level. a. Aldosterone b. calcitonin c. parathyroid (PTH) d. Adrenaline 14.second heart sound (dup) caused by……………. a. closure of the aortic semilunar valve b. closure of the pulmonary semilunar valve c. closure of atrioventricular valves d. both a & b 15.The superior vena cava opens in ……………… of the heart a. left ventricle b. left atrium c. right ventricle d. right atrium 16.Cells lining the blood capillaries are called______. (A) Oxyntic cells (B) Endothelial cells (C) Parietal cells (D)Haemocytes 17.The cells primarily involved in immune mechanism are______. (A)Eosinophils (B) Thrombocytes (C) Lymphocytes (D) Erythrocytes 18.The cells that directly and specifically secrete mucus are called _____ cells. a. Epithelial b. Endocrine c. exocrine d. goblet 19.One of the main functions associated with simple columnar with microvilli epithelium is _____. a. Diffusion b. Active transport c. Secretion d. Absorption 20.Where is the primary site for absorption of nutrients. a. Stomach b. Small intestine c. Ascending colon d. Descending colon e. Both a and b equally 21.What are the finger like projections of mucosa that are seen in the small intestine? a. Lacteal b. Crypts of Lieberkuhn c. Striated border d. Villi 22.What is the outer layer of the GI tract called when it is abutting another organ? a. Mucosa b. Sub mucosa c. Serosa d. Adventitia 23.What is the innermost layer of the GI tract called? a. Mucosa b. Sub mucosa c. Muscularis externa d. Serosa 24.Which layer contains the lining epithelium? a. Mucosa b. Sub mucosa c. Muscularis externa e. Adventitia 25.What is another term for the intestinal glands? a. Lacteal b. Crypts of Lieberkuhn c. Plicae circulares d. Striated border 26.Which cells secrete hydrochloric acid? a. Parietal cells b. Chief cells d. Mucous neck cells e. All of the above 27 Which cells secrete pepsinogen? a. Parietal cells b. Oxyntic cells c. Chief cells d. Mucous neck cells 28.Which of the following produce antibodies in response to a foreign antigen? a. T cells b. B cells c. lymphocytes 29 Which of the following originate and mature in the bone marrow? a. T cells b. B cells c. macrophages 30. Which of the following mature in the thymus gland? a. T cells b. B cells c. macrophages 31. Interferons are substances released by some cells to fight __________. a. bacteria b. viruses c. symbiotic pathogens 32.Vasodilatation is part of the second line of defense because it results in greater flow of WBCs to the infected site. What chemical causes the vessels to dilate? a. histamine b. prostaglandin c. complement proteins 33.The inflammatory response is part of the __________. a. specific defense b. nonspecific defense c. nonspecific barrier 34.The molecules that help to attract phagocytes to foreign cells are called __________. a. interferons b. complement proteins c. major histocompatibility complex 35.When a virus infects cells, some cells have the ability to release __________, which are chemicals that activate other cells to defend themselves against the virus. a. interferons b. complement proteins c. major histocompatibility complex 36.The inflammatory response is a normal response to tissue damage or the presence of foreign invaders. Which of the following is the correct sequence of events leading up to inflammation? a. cells release histamine, vasodilation and permeability occurs, phagocytes arrive at the site and begin to engulf the foreign invader b. blood vessels will dilate and permeability occurs, cells release histamine, which attract phagocytes to the site and begin to engulf the foreign invader c. cells release histamine, phagocytes are attracted to the site, vasodilation and 37.permeability occurs, which allow the phagocytes to engulf the foreign invader A fever is considered to be a __________ defense. a. specific b. nonspecific c. nonspecific barrier 38.The lymphatic system returns excess fluid and protein to the __________. a. lymphoid cells b. interstitial fluid c. blood circulation 39.The lymphatic system absorbs __________ from the digestive system. a. lipids b. lymph c. nutrients 40.Which of the following statements is true regarding the function of antibodies? a. They kill pathogens. b. They bind to foreign antigens, which attract macrophages. c. They bind to antibiotics so the antibiotics know which pathogen to kill. 41. Which of the following statements is true regarding antibodies? a. Antibodies bind to and kill foreign cells. b. Antibodies are a type of antibiotic, which kills bacteria. c. Antibodies bind to foreign antigens resulting in attracting more macrophages to the foreign cells. 42.Which of the following antibodies are involved in causing basophils to release histamine? a. IgA b. IgG c. IgE 43.Which cells are responsible for producing immunity against a disease after the first exposure of the same disease? a. T cells b. macrophages c. memory B cells 44.The right ventricle is the chamber of the heart that pumps blood for the pulmonary circulation. Based on this information, blood from the right ventricle is on its way to the __________. a. lungs b. liver c. appendages 45.Which of the following is correct regarding blood flow in reference to the right side of the heart? a. Blood flows from the right atrium through the pulmonary semilunar valve, into the right ventricle, through the tricuspid valve, into the pulmonary trunk, and then into the pulmonary arteries. b. Blood flows from the right atrium through the tricuspid valve, into the right ventricle, through the pulmonary semilunar valve, into the pulmonary trunk, and then into the pulmonary arteries. c. Blood flows from the right atrium through the tricuspid valve, into the right ventricle, into the pulmonary trunk, through the pulmonary semilunar valve, and then into the pulmonary arteries. 46.Which of the following is correct regarding the flow of blood in reference to the left side of the heart? a. Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, through the aortic semilunar valve, and then into the aortic arch. b. Blood flows from the left atrium, through the aortic semilunar valve, into the left ventricle, through the bicuspid valve, and then into the aortic arch. c. Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, into the aortic arch, through the aortic semilunar valve, and then into the systemic arterial system. 47.Which of the following is also known as the mitral valve? a. bicuspid b. tricuspid c. pulmonic d. All of the above 48.The defense system that recognizes precise foreign antigens is the body's __________ line of defense. a. first b. second c. third d.None of the above 49.The production of antibodies is the body's __________ line of defense. a. first b. second c. third d.None of the above 50.The activity of antigens and antibodies are involved in __________ defense. a. specific b. nonspecific c. nonspecific barrier d.None of the above 51. Lymphocytes are the main cells involved in our immune system. There are many types of lymphocytes, each with a specific function. Which of the following are involved in producing antibodies? a. B cells b. cytotoxic T cells c. suppressor T cells d.Non of the above 52.When a person becomes infected with a pathogen that has a foreign antigen, the T cells and B cells respond. The various lymphocytes will kill the invader and then the patient is said to immune to that pathogen. They are immune to it because the second time they encounter the same pathogen, their __________ will respond quickly. a. cytotoxic T cells b. memory B cells c. helper T cells 53.What cells will develop antigen receptors when they mature? a. lymphocytes b. erythrocytes c. skin cells d. All of the above 54.Which cells are responsible for producing immunity against a disease after the first exposure of the same disease? a. T cells b. macrophages c. memory B cells 55.Which of the following types of immune responses involves antigens binding directly to the B cells causing the production of antibodies? a. APC immunity b. humoral immunity c. cell-mediated immunity d. None of the above 56 Endocrine glands are…….. a. Ductless glands b. They affect target organs through their enzymes c. Their secretion directly go o the blood d. All of the above 57 Which of the following organs have group of endocrine cells : a. Pancreas b. Testis c. Ovary d. All of the above 58 Which of the following are single endocrine cells: a. Mast cells b. Goblet cells c. Entroendocrine cells d. a &c 59 Hormones are: a. They are chemical substances secreted by ductless glands b. Secreted by very small amounts directly into the blood c. They are excreted in the urine d. All of the above 60 All of the following are steroidal hormones except: a. Mineralocorticoids b. Glucocorticoids