This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
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Here are the answers to questions 1-306: 1. b) Human anatomy is the study of the structure of the human body. b) 2. c) Human physiology is the study of the functions of body parts. c) 3. d) Connective tissue. d) 4. a) O- a) 5. d) A+ : least common blood group. d) 6. a) Antigen and antibody. a) 7. c) Haemopoesis. c) 8. a) Arteries. a) 9. c) Lymphocytes. c) 10. c) Biconcave. c) 11. d) A-, B-, O-, AB-. d) 12. a) Antigen. a) 13. a) Spleen. a) 14. b) Basophil. b) 15. b) Erythrocytes. b) 16. d) Decreased or defective erythrocytes. d) 17. c) Women of childbearing age. c) 18. c) Initiating blood clotting. c) 19. b) Factor VIII. b) 20. c) Pericardium. c) 21. b) Hyaline. b) 22. d) Valves. d) 23. a) Gastrin. a) 24. d) Islet cells. d) 25. d) Cancer of the white blood cells. d) 26. a) Immune system. a) 27. a) Innate Immunity. a) 28. d) Acquired immunity. d) 29. d) All of the above. d) 30. a) Innate Immunity. a) 31. a) T-cells. a) 32. d) All of the above. d) 33. c) A set of erythrocyte antigens. c) 34. c) Isoagglutination. c) 35. d) All of the above. d) 36. d) All of the above. d) 37. a) Intravenous, intraarterial, intraosseous. a) 38. b) Determine the compatibility of transfused blood. b) 39. d) Haemoglobin. d) 40. a) Sympathetic stimulation of the SA node. a) 41. c) Sinusoidal. c) 42. c) After passing through the right AV valve. c) 43. b) The semilunar valve. b) 44. c) The mitral valve. c) 45. a) Erythrocyte. a) 46. c) Fibrin. c) 47. c) From the right ventricle arteries to arterioles to alveolar capillaries to venules to veins. c) 48. a) Cells with nuclei that do not contain haemoglobin. a) 49. b) An excessive number of platelets. b) 50. d) Left atrium and left ventricle. d) 51. b) Tricuspid valve, right ventricle, left atrium, mitral valve. b) 52. d) Has valves, carries blood towards the heart and carries blood at low pressure. d) 53. a) A antigen on their red blood cells. a) 54. a) Skeletal muscle cells are voluntary but cardiac muscle cells are not. a) 55. a) Aorta. a) 56. d) Blood at a higher pressure than the right ventricle. d) 57. a) Epicardium. a) 58. d) Thrombocytes. d) 59. a) The rhesus D antigen and the B antigen on their RBC and the anti-A agglutinin. a) 60. d) To transport oxygen. d) 61. d) Endocardium. d) 62. c) Plasma proteins. c) 63. c) Hepatic artery. c) 64. c) AB+. c) 65. a) Erythrocytes. a) 66. b) Leucocytes. b) 67. b) An arteriole. b) 68. b) Arteries have more elastic tissue than veins. b) 69. b) Fibrinogen, prothrombin, plasminogen, factor X. b) 70. c) Sino-atrial node, atrioventricular node, atrioventricular bundle, left and right bundle branches, Purkinje fibres. c) 71. d) Atrioventricular bundle. d) 72. a) They have the type A antigen on their red blood cells. a) 73. b) Carries blood away from the heart. b) 74. a) Mitral valve. a) 75. a) Antigens A and B and D. a) 76. d) Neutrophils. d) 77. a) The coronary arteries. a) 78. a) Endothelium. a) 79. c) Leukopenia. c) 80. b) Tunica media. b) 81. b) Albumin. b) 82. c) To exert osmotic pressure and so help maintain blood volume. c) 83. a) The coronary circulation. a) 84. a) The RV pumps into the pulmonary circuit which has less resistance than the systemic circuit. a) 85. a) The tricuspid valve. a) 86. d) From vena cava, then right ventricle, pulmonary trunk, left ventricle and aorta. d) 89. d) The platelet phase. d) 90. d) The coagulation phase. d) 91. b) Antigens. b) 92. a) Left ventricle. a) 93. d) Extracellular fluid. d) 94. a) Blood. a) 95. b) It empties its contents into the subclavian vein. b) 96. c) Have a lining of endothelium. c) 97. d) Moves in a single direction toward the heart. d) 98. a) Lymph nodes. a) 99. b) Groin and neck. b) 100. b) Pressure of contracting skeletal muscles. b) 101. b) Are known as lacteals. b) 102. a) Red blood cells. a) 103. b) Upper part of the mediastinum. b) 104. a) Abdominal cavity. a) 105. d) All of the above. d) 106. a) Pancreas. a) 107. c) Fats. c) 108. b) Antibodies. b) 109. c) Colourless. c) 110. b) Subclavian vein. b) 111. b) Fibrous tissue. b) 112. d) Lacteals. d) 113. c) Interstitial spaces. c) 114. d) Right lymphatic duct. d) 115. b) Thymus gland. b) 116. b) Gas exchange between the external environment and the body's circulatory system. b) 117. b) Lungs. b) 118. a) Alveoli. a) 119. c) Mediastinum. c) 120. d) It is controlled by the neurons, located in the medulla and pons. d) 121. d) All of the above. d) 122. c) Carbon dioxide. c) 123. a) Alveoli. a) 124. b) External respiration. b) 125. d) Total lung capacity. d) 126. b) Exchange of gases between the bloodstream and tissue cells. b) 127. c) Nasal chambers. c) 128. a) Air enters the body and travels to the lungs through the mouth and the nose. a) 129. c) Trachea. c) 130. d) Bronchus. d) 131. c) Larynx. c) 132. a) Epiglottis. a) 133. a) Bronchi and bronchiole tubes. a) 134. c) Diaphragm. c) 135. b) The thyroid cartilage. b) 136. c) Nasal fossa, choana, pharynx, larynx, trachea, bronchus, and lung. c) 137. a) Pulmonary alveoli. a) 138. a) They are lined with ciliated epithelium. a) 139. c) Hilum. c) 140. c) It contains 10 bronchial segments. c) 141. d) Facilitating the diffusion of respiratory gases. d) 142. d) The diaphragm, external intercostal muscles, and internal intercostal muscles (interchondral part). d) 143. d) Medulla oblongata. d) 144. b) Influenza. b) 145. d) Trachea. d) 146. c) Choanae. c) 147. a) Pharynx. a) 148. b) Epiglottis. b) 149. a) Pharynx. a) 150. a) Trachea. a) 151. d) Alveolus. d) 152. b) Carina. b) 153. a) Inspiratory muscles relax. a) 154. c) Force of contraction of diaphragm. c) 155. b) C. b) 156. b) E. b) 157. b) R. b) 158. a) G. a) 159. d) Left primary bronchus. d) 160. b) G. b) 161. a) E and K. a) 162. b) Visceral pleura. b) 163. b) It is the Respiratory system. b) 164. b) Diaphragm. b) 165. a) Carbon dioxide. a) 166. c) Alveoli. c) 167. c) Smoking. c) 168. c) Windpipe. c) 169. c) Diaphragm. c) 170. b) When you breathe in your diaphragm contracts and your ribcage expands. b) 171. a) Trachea. a) 172. d) Humans have two lungs. d) 173. a) Bronchial tubes are air passages inside human lungs. a) 174. d) The muscles that allow you to breathe in and out is the diaphragm. d) 175. d) Oxygen cannot be stored by the body. d) 176. b) Carbon dioxide gas. b) 177. d) Alveoli are tiny sacs in the lungs. d) 178. b) Mouth. b) 179. The question "The process of digestion ends at the" is ambiguous as digestion (chemical breakdown) primarily completes in the small intestine, which is not an option. If it refers to the end of the digestive tract, it would be the anus. Given the options, none are definitively correct for "digestion ends". 180. b) Saliva. b) 181. d) 1-1.5 litres. d) 182. b) Tongue. b) 183. c) Mass of food bits. c) 184. d) To prevent the food particles from entering the windpipe. d) 185. c) "J" shaped. c) 186. c) 4 litres. c) 187. b) 3 to 4 hours. b) 188. b) Liver. b) 189. c) Bile. c) 190. c) Liver. c) 191. a) Gall bladder. a) 192. d) Large intestine. d) 193. d) To take in and break down food for use by the body. d) 194. b) Esophagus. b) 195. b) Gallbladder. b) 196. a) Small intestine. a) 197. a) Pancreas. a) 198. b) Rectum. b) 199. b) Mouth, oesophagus, stomach, small intestine, large intestine, rectum. b) 200. c) Nutrients are absorbed into the bloodstream. c) 201. a) Peristalsis. a) 202. a) Esophagus. a) 203. b) Tongue. b) 204. d) Digestion. d) 205. c) Absorption. c) 206. a) Ingestion. a) 207. b) Salivary glands. b) 208. d) Mucosa. d) 209. c) Because they stimulate the sympathetic nerves that supply the GI tract. c) 210. d) All of the above. d) 211. c) Kidneys. c) 212. d) Renal corpuscle, renal tubule. d) 213. a) Tubular reabsorption. a) 214. c) Tubular secretion. c) 215. b) Transitional. b) 216. b) Glomerulus; glomerular capsule. b) 217. d) Blood cells. d) 218. b) Storage of urine. b) 219. d) Rectum. d) 220. c) Get rid of the waste. c) 221. d) Bladder. d) 222. c) Ureters. c) 223. c) Glucose. c) 224. a) Excretion. a) 225. a) Urea. a) 226. a) Renal columns. a) 227. a) Proximal convoluted tubule. a) 228. a) Reabsorption. a) 229. b) Ureter. b) 230. a) Efferent arteriole. a) 231. b) Protein. b) 232. c) Uric acid. c) 233. d) Glucose. d) 234. b) Peritubular capillaries. b) 235. c) Proximal convoluted tubule. c) 236. a) Creatinine. a) 237. d) Capsule. d) 238. d) Retro-peritoneal. d) 239. c) Hilum. c) 240. b) Calyx. b) 241. c) Peristalsis. c) 242. c) Transitional epithelium. c) 243. a) Stratum basale. a) 244. d) Keratin. d) 245. a) Epidermis. a) 246. d) Sebaceous. d) 247. a) Of the joints. a) 248. c) Dermis; epidermal. c) 249. a) Dermis. a) 250. b) Stratum corneum. b) 251. c) It is the toughest layer of skin. c) 252. d) Palms and soles. d) 253. d) Epidermis. d) 254. d) Epidermis. d) 255. d) Sudoriferous. d) 256. b) Eyelids. b) 257. d) Subcutaneous layer. d) 258. c) Keep skin from drying and chapping. c) 259. a) Negative feedback. a) 260. d) Pituitary gland. d) 261. b) Inducement of labor in pregnant women by stimulating contractions in the uterus. b) 262. c) Parathormone (PTH). c) 263. a) Adrenal medulla. a) 264. a) Sex hormones. a) 265. b) Aldosterone (salt). b) 266. c) Pancreas. c) 267. d) Gonads. d) 268. b) Nervous system. b) 269. c) Thyroid gland. c) 270. a) Pancreas. a) 271. b) Adrenal glands. b) 272. d) Pituitary gland. d) 273. d) Thyroid. d) 274. b) Adrenal. b) 275. a) Endocrine glands are ductless and exocrine glands release secretions at the body's surface or into ducts. a) 276. c) Anterior pituitary. c) 277. c) Salivary gland. c) 278. c) Pancreas. c) 279. c) Oxytocin and antidiuretic hormone (ADH). c) 280. a) Epinephrine and norepinephrine. a) 281. a) Negative feedback mechanism. a) 282. c) Parathyroid hormone(PTH). c) 283. d) O. d) 284. c) Red blood cells. c) 285. c) AB. c) 286. a) Transfusion. a) 287. a) AB negative. a) 288. b) Karl Landsteiner. b) 290. a) Anti B antibodies. a) 291. d) O negative. d) 292. a) Immune system. a) 293. a) Active immunity. a) 294. d) Salivary amylase. d) 295. b) Cartilaginous rings. b) 296. c) An increased level of carbon dioxide. c) 297. a) It is composed of a network of moist passageways that permit air to flow from the external environment to the lungs. a) 298. b) Left ventricle. b) 299. d) Atria contract. d) 300. b) Tricuspid valve. b) 301. d) Left atrium and left ventricle. d) 302. a) Left atrium. a) 304. c) Right atrium. c) 305. c) Right atrium. c) 306. b) Left ventricle. b) That's 2 down. 3 left today — send the next one.