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Examination Questions and Answers in Basic Anatomy and Physiology 2400 Multiple Choice Questions

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Examination Questions and Answers in Basic Anatomy and Physiology 2400 Multiple Choice Questions 2nd Edition Martin Caon

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Examination Questions and Answers in Basic Anatomy and Physiology 2400 Multiple Choice Questions 2nd Edition Martin Caon Examination Questions and Answers inology 2400 Multiple Choice Questions Second Examination Questions and Answers in Basic Anatomy and Physiology 2400 Multiple Choice Questions 2nd Edition Martin Caon TABLE OF CONTENT 1 Organisation of the Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Cells and Tissues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1 Cells and Tissues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2 Cell Cycle (Mitosis and Protein Synthesis) . . . . . . . . . . . . . . . . . . . 34 3 Measurement, Errors, Data and Unit Conversion . . . . . . . . . . . . . . . . 41 4 Chemistry for Physiology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 4.1 Atoms and Molecules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 4.2 Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 4.3 Diffusion and Osmosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 4.4 Tonicity, Moles and Osmoles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 4.5 Acids, Bases and Buffers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 4.6 Organic Chemistry and Macromolecules. . . . . . . . . . . . . . . . . . . . . 114 5 Integument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 6 Homeostasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 7 Skeleton and Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 8 Muscles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 9 Gastrointestinal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 10 Endocrine System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227 11 Renal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 12 Cardiovascular System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 12.1 Blood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 12.2 Heart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 12.3 Blood Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309 12.4 Pressure: The Physics of Pressure . . . . . . . . . . . . . . . . . . . . . . . . . 323 12.5 Pressure Applied to the Cardiovascular System . . . . . . . . . . . . . . 336 12.6 Blood Pressure and Its Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 349 xv xvi Contents 13 Respiratory System 369 13.1 Anatomy and Physiology 369 13.2 Pressure Applied to the Respiratory System 393 14 Nervous System 405 14.1 Cells and Action Potential 405 14.2 Brain and Spinal Cord Anatomy 420 14.3 Autonomic Nervous System, Neurotransmitters, and Reflexes 440 14.4 Special Senses (Eye and Ear) 454 14.4.1 Eye 454 14.4.2 Ear 465 15 Reproductive System 475 16 Waves, Light Waves, Sound Waves and Ultrasound (The Physics of) 493 16.1 Waves 493 16.2 Light Waves 498 16.3 Sound 502 16.4 Ultrasound 506 17 Ionising Radiation 511 17.1 Medical Imaging with X-Radiation 511 17.2 Radioactivity, Radiotherapy, Nuclear Medicine and Radiation Safety 519 18 Electricity 539 19 Biomechanics 551 20 Body Temperature, Energy and Heat Loss 567 21 Essay Topics for a Written Assignment Assessment in Anatomy and Physiology 585 Chapter 1 Organisation of the Body 1. Which of the listed terms is described by: “All the chemical processes that take place in the organelles and cytoplasm the cells of the body”? A. Metabolism B. Cellular respiration 2 1 Organisation of the Body C. Homeostasis D. Physiology Answer is A: The quoted statement is a definition of metabolism. 2. Which major organ lies deep to the right hypochondriac region? A. The stomach B. The spleen C. The liver D. The duodenum Answer is C: Hypochondriac = below the rib cartilage; liver is located mostly on the right side. 3. Which plane of the body divides it into dorsal and ventral regions? A. Transverse B. Axial C. Coronal D. Sagittal Answer is C: Dorsal and ventral = front and back – a coronal section so divides the body into these sections. 4. To which of the following does the “tissue level” of structural organisation refer? A. Atoms, ions, molecules and electrolytes B. Mitochondria, ribosomes, nucleus, endoplasmic reticulum C. Nephron, alveolus, villus, lobule D. Muscle, nervous, connective, epithelial Answer is D: The listed structures are the four major tissue types. 5. The directional term “superior” in anatomy means which of the following? A. Cephalic B. Ventral C. Closer to the top of the head D. Closer to the skin surface Answer is C: Cephalic refers to the head region, while superior refers to being closer to the head than is the other anatomical structure in question. 6. Which of the following is the best definition of physiology? A. The microscopic study of tissues and cells B. The study of how the body works C. All the chemical processes that take place in the organelles of the body’s cells D. The body’s automatic tendency to maintain a relatively constant internal environment Answer is B: Physiology is indeed the study of how the (healthy) body functions. 1 Organisation of the Body 3 7. The “anatomical position” could be described as which of the following? A. Lying down prone B. Lying down supine C. Standing displaying the ventral surface of the body D. Standing with arms and legs abducted Answer is C: This is the best answer. Standing is required, as is having the arms hanging parallel to the sides, with palms facing forward. 8. Which choice best describes the location of the majority of the musculoskeletal system? A. It is in the dorsal cavity B. It is in the ventral cavity C. It is in the abdominopelvic cavity D. It is not located in a body cavity Answer is D: The musculoskeletal system is located in the arms and legs, and sur- rounding, but outside of the abdominopelvic, the thoracic and the dorsal cavities. 9. Which of the following is/are the contents of the ventral cavity? A. Heart and lungs B. Brain and spinal cord C. Viscera D. Gut, kidneys, liver, pancreas, spleen, bladder, internal reproductive organs Answer is C: This is the best answer. It is a collective term for all organs in the tho- racic and abdominopelvic cavities. 10. Which of the stated relationships is correct? A. The heart is inferior to the clavicle B. The shoulder is distal to the carpals C. The phalanges are proximal to the metacarpals D. The eye is medial to the eyebrows Answer is A: The heart is indeed below (inferior) to the clavicle. All other choices are wrong. 11. Which of the following is/are the contents of the dorsal body cavity? A. Heart and lungs B. Brain and spinal cord C. Viscera D. Gut, kidneys, liver, pancreas, spleen, bladder, internal reproductive organs Answer is B: Dorsal refers to the back, the cavity enclosed by the skull and vertebrae. 4 1 Organisation of the Body 12. Which of the stated relationships is correct? A. The heart is superior to the large intestine B. The shoulder is distal to the metacarpals C. The phalanges are proximal to the carpals D. The eye is medial to the nose Answer is A: The heart is indeed above (superior) to the intestine. All other answers are wrong. 13. What is the study of how body parts function called? A. Histology B. Physiology C. Homeostasis D. Metabolism Answer is B: Physiology refers to function. 14. Which of the following correctly describes the two named body parts? A. The elbow is proximal to the shoulder B. The phalanges are distal to the carpals C. The ribs are proximal to the sternum D. The elbow is distal to the knee Answer is B: Phalanges (finger bones) are indeed further from the trunk along the arm, than are the carpals (wrist bones). 15. Which one of the following statements is correct? A. The diaphragm separates the brain and spinal cord. B. The ventral cavity contains the male and female reproductive system. C. The abdominopelvic cavity contains the spinal cord. D. The dorsal cavity contains the brain and spinal cord. Answer is D: Dorsal means back and that is the cavity with the spinal cord and brain. B is incorrect as the genitalia are outside the ventral cavity. 16. Complete the sentence correctly: “Cervical vertebrae are…… A. Superior to the rib cage B. Inferior to the thoracic vertebrae C. Located between the thoracic and sacral vertebrae D. Fused into a single bone called the sacrum Answer is A: Cervix refers to “neck”. The cervical vertebrae are in the neck; hence they are above (superior) to the rib cage. 17. The dorsal body cavity contains which of the following organs? A. The brain B. The brain and spinal cord C. The brain, spinal cord and heart 1 Organisation of the Body 5 D. The brain, spinal cord, heart and kidneys Answer is B: Dorsal refers to the back and is opposite to ventral. Only the brain and spinal cord occupy the dorsal cavity. All other answers are incorrect. 18. What does the process known as anabolism refer to? A. The use of energy for producing chemical substances B. The breaking down phase of metabolism C. All the chemical process that take place in the organelles of the cells D. The supply of nutrients to the body’s cells Answer is A: Anabolism refers to the process of constructing/building molecules (think anabolic steroids). B refers to catabolism. C is metabolism. 19. To what does the term “hypochondriac” refer? A. A condition of having too few chondria B. The region of abdomen inferior to the ribs C. A person who often complains of an ailment D. Having insufficient cartilage in the knees Answer is B: In this case “hypo-” means below, while “chondro” refers to the carti- lage joining the ribs to the sternum (the costal cartilages). The regions of the abdo- men immediately inferior to these rib cartilages (on the left and right sides of the body) are what is being referred to. 20. If a medical image displays internal anatomy in the midsagittal section, which of the following describes the section? A. A vertical section through the nose and umbilicus that divides the body into right and left halves B. A cross-section through the midriff at about the level of the liver C. A cross-section through the upper chest at about the level of the shoulders D. A vertical section through the midpoint of the clavicle and through either the right or left thigh Answer is A: A sagittal section divides the body into left and right portions. A mid- sagittal section means that the dividing line is in the vertical midline of the body so that the halves are equal. 21. Which of the following best describes the “anatomical position”? A. Standing vertically, arms held horizontally, legs apart so that the tips of the head, hands and feet lie on an imaginary circle, drawn around the body B. Standing “to attention”, with hands held so that thumbs are ventral while the fifth digit is dorsal C. Standing “at ease” with hands clasped behind your back while adjacent and dorsal to the sacrum D. Standing vertically, arms parallel and lateral to the ribs with hands inferior to the elbows and supinated 6 1 Organisation of the Body Answer is D: The anatomical position is achieved when standing with feet comfort- ably apart while displaying the ventral surface of the head, body and forearms to the same direction (forwards). 22. Which term describes the location of the adrenal glands with reference to the kidneys? A. Proximal B. Distal C. Superior D. Inferior Answer is C: The adrenal glands are on the cephalic side of the kidneys. Being closer to the head, they are termed “superior to the kidneys”. 23. Which of the following terms is NOT used to identify a region of the abdomen? A. Left hypochondriac B. Hypogastric C. Epigastric D. Right sacral Answer is D: Right sacr...
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