Unit 2 Quizzes Flashcards
Cells or organs that selectively remove, concentrate, or alter materials in the blood and then secrete them back into the body are called: Select one: a. glands. b. neurotransmitters. c. hormones. d. neoplasms.
a. glands.
The ilium is defined as the: Select one: a. lower part of the small intestine. b. bony prominence of the pelvis. c. ligament that overlies the femoral vessels. d. structure that overlies the bladder.
b. bony prominence of the pelvis.
When oxygen levels are low or absent, the cells revert to a process of: Select one: a. anaerobic anabolism. b. anaerobic metabolism. c. aerobic metabolism. d. aerobic catabolism.
b. anaerobic metabolism.
All of the following are voluntary muscles, except: Select one: a. striated muscle. b. skeletal muscle. c. somatic muscle. d. smooth muscle.
d. smooth muscle.
The movement of a solute from an area of higher concentration to an area of lower concentration is called: Select one: a. endocytosis. b. diffusion. c. exocytosis. d. osmosis.
b. diffusion
The second heart sound (S2) represents: Select one: a. closure of the aortic valve. b. closure of the semilunar valves. c. closure of the atrioventricular valves. d. closure of the pulmonic valve.
b. closure of the semilunar valves.
The respiratory center of the brain is located in the: Select one: a. medulla. b. cerebellum. c. cerebrum. d. hypothalamus.
a. medulla.
Detoxification of toxic substances, production of bile, and production of certain clotting factors are all functions of the: Select one: a. pancreas. b. liver. c. kidneys. d. gallbladder.
b. liver.
The most common solvent in the body, in which solutes or other substances will dissolve, is: Select one: a. water. b. bile. c. blood. d. plasma.
a. water.
The hypoxic drive, a backup system to control breathing, is stimulated when: Select one: a. arterial PaO2 levels decrease. b. arterial PaCO2 levels decrease. c. arterial PaO2 levels increase. d. arterial PaCO2 levels increase.
a. arterial PaO2 levels decrease.
Tidal volume is defined as the volume of air that:
Select one:
a. is exhaled from the lungs following a forceful exhalation.
b. is moved into or out of the lungs during a single breath.
c. is moved in or out of the lungs following maximal expiration.
d. remains in the lungs following expiration.
b. is moved into or out of the lungs during a single breath.
How do the blood vessels of the skin respond to cold temperatures?
Select one:
a. Constriction, which diverts blood away from the skin
b. Constriction, which pulls blood to the skin’s surface
c. Dilation, which diverts blood away from the skin
d. Dilation, which pulls blood to the skin’s surface
a. Constriction, which diverts blood away from the skin
Adrenocorticotropic hormone (ACTH) targets the adrenal cortex and causes it to secrete: Select one: a. adrenaline. b. cortisol c. calcitonin. d. antidiuretic hormone.
b. cortisol
Chemicals that become ionic conductors when dissolved in water are called: Select one: a. ions. b. exocytes. c. endocytes. d. electrolytes.
d. electrolytes.
The movement of a substance against a concentration or gradient, such as the cell membrane, is called: Select one: a. crenation. b. osmosis. c. facilitated diffusion. d. active transport.
d. active transport.
In response to shock or stress, sympathetic nervous system stimulation causes: Select one: a. increased gastrointestinal function. b. vasoconstriction. c. shunting of blood to the extremities. d. slowing of the heart rate.
b. vasoconstriction.
Phagocytosis is the process by which: Select one: a. phagocytes are destroyed. b. monocytes digest microbes. c. phagocytes are produced. d. microbes destroy monocytes.
b. monocytes digest microbes.
Which of the following physiologic responses would you expect to see in a patient with a pH of 7.50? Select one: a. Bicarbonate retention b. Increased respirations c. Decreased respirations d. Hydrogen ion excretion
c. Decreased respirations
The shoulder joint is a ball-and-socket joint where the humeral head articulates with the: Select one: a. acetabulum. b. glenoid fossa. c. acromion process. d. popliteal fossa.
b. glenoid fossa.
If the concentration of H+ increases, the pH of the blood will: Select one: a. decrease. b. increase, then decrease. c. remain unchanged. d. increase.
a. decrease.
The normal pH of the human body ranges from: Select one: a. 7.25–7.30. b. 7.60–7.75. c. 7.35–7.45. d. 7.50–7.55.
c. 7.35–7.45.
A buffer is a substance that can absorb or donate: Select one: a. sodium. b. bicarbonate. c. hydrogen ions d. water.
c. hydrogen ions
The atrioventricular (AV) valves of the heart include the: Select one: a. tricuspid and mitral. b. mitral and aortic. c. tricuspid and pulmonic. d. bicuspid and aortic.
a. tricuspid and mitral.
The movement of a solvent from an area of low solute concentration to an area of high solute concentration is called: Select one: a. diffusion. b. passive transport. c. osmosis. d. crenation.
c. osmosis.
The germinal layer contains cells that produce pigment granules, which help to produce: Select one: a. skin color. b. fatty tissue. c. sebum. d. sweat.
a. skin color.
Which of the following is an uncontrollable risk factor for disease? Select one: a. Poor diet b. Genetics c. Stress d. Smoking
b. Genetics
What role does the spleen play in the body’s compensatory response to hypoperfusion?
Select one:
a. It releases additional glucose.
b. It releases catecholamines.
c. It releases sequestered red blood cells.
d. It releases pyrogens, which cause fever.
c. It releases sequestered red blood cells.
Your patient presents with a serum potassium level of 6.2 mEq/L. Which of the following would most likely cause this? Select one: a. Laxative use b. Hypovolemia c. Renal failure d. Diuretic use
c. Renal failure
Adrenocorticotropic hormone (ACTH) targets the adrenal cortex, resulting in the release of: Select one: a. epinephrine. b. norepinephrine. c. cortisol. d. glucagon.
c. cortisol.
Relative to other microorganisms, mycobacterium tuberculosis:
Select one:
a. lacks a capsule, yet resists destruction.
b. contains a thick, impenetrable capsule.
c. is not transported in the body by phagocytes.
d. is easily destroyed with antibiotics.
a. lacks a capsule, yet resists destruction.
Which of the following conditions would cause a proportionate increase in both sodium and water and an increased total body sodium? Select one: a. Steroid use b. Sweating c. Diuretic use d. Diarrhea
a. Steroid use
The most common cause of cardiogenic shock is: Select one: a. a myocardial infarction. b. a cardiac dysrhythmia. c. a ventricular septal defect. d. pulmonary edema.
a. a myocardial infarction.
White blood cells that develop from B cells and produce large volumes of specific antibodies are called: Select one: a. killer T cells. b. plasma cells. c. mast cells. d. lymphocytes
b. plasma cells.
Hypernatremia exists when serum sodium levels are \_\_\_\_\_ mEq/L or greater. Select one: a. 143 b. 134 c. 139 d. 128
a. 143
A patient with liver failure has an abnormal accumulation of fluid in the peritoneal cavity. This is called: Select one: a. lymphatic edema. b. ascites. c. sacral edema. d. anasarca.
b. ascites.
Which of the following clinical signs is a manifestation of fluid leakage into the interstitial spaces? Select one: a. Stridor b. Wheezing c. Urticaria d. Tachycardia
a. Stridor
A patient is diagnosed with left ventricular hypertrophy. This means that the left ventricle is: Select one: a. small in size. b. weakened. c. enlarged. d. abnormally strong
c. enlarged.
A young female overdosed on heroin and has slow, shallow breathing. Which of the following condition will she develop initially? Select one: a. Metabolic acidosis b. Respiratory alkalosis c. Respiratory acidosis d. Metabolic alkalosis
c. Respiratory acidosis
Blood gas analysis at the hospital reveals that your patient has a pH of 7.29. Which of the following conditions would most likely cause this? Select one: a. Hyperventilation b. Mild hypoglycemia c. Antacid overdose d. Diabetic ketoacidosis
d. Diabetic ketoacidosis
A full-term neonate has a total body water percentage of: Select one: a. 60%. b. 80%. c. 50%. d. 70%.
b. 80%.
The term metaplasia refers to:
Select one:
a. a decrease in cell size due to a loss of subcellular components, resulting in decreased organ size.
b. an increase in the actual number of cells in an organ or tissue, resulting in increased organ size.
c. an increase in the size of the cells due to synthesis of more subcellular components.
d. the reversible cellular adaptation in which one adult cell type is replaced by another adult cell type.
d. the reversible cellular adaptation in which one adult cell type is replaced by another adult cell type.
Which of the following is correct?
Select one:
a. Decreased pH = increased hydrogen ion concentration = acidosis
b. Increased pH = increased hydrogen ion concentration = alkalosis
c. Decreased pH = decreased hydrogen ion concentration = alkalosis
d. Increased pH = decreased hydrogen ion concentration = acidosis
a. Decreased pH = increased hydrogen ion concentration = acidosis
A consistently high level of \_\_\_\_\_\_\_ suppresses the immune system by increasing production of interleukin-6 Select one: a. insulin b. aldosterone c. cortisol d. glucose
c. cortisol
The protein that bonds to form the fibrous component of a blood clot is called: Select one: a. a thrombocyte. b. fibrin. c. plasminogen. d. plasmin.
b. fibrin
It has been statistically proven that the lifespan of a person with obesity is decreased by as many as \_\_\_ years. Select one: a. 13 b. 8 c. 5 d. 18
a. 13
What three lines of defense does the body have to protect itself against disease-causing agents?
Select one:
a. The renal system, anatomic barriers, and increased red blood cell production
b. Blood coagulation, the parasympathetic response, and anatomic barriers
c. The inflammatory response, blood coagulation, and the immune response
d. Anatomic barriers, the inflammatory response, and the immune response
d. Anatomic barriers, the inflammatory response, and the immune response
Which of the following fluid imbalances would result from severe burns?
Select one:
a. Proportionate gain in both water and sodium; increased total body sodium
b. Proportionate loss in both water and sodium; decreased total body sodium
c. Proportionate loss in both water and sodium; increased total body sodium
d. Proportionate gain in both water and sodium; decreased total body sodium
b. Proportionate loss in both water and sodium; decreased total body sodium
\_\_\_\_\_\_\_ is the general term used to describe diseases of the myocardium that ultimately progress to heart failure. Select one: a. Cardiomyopathy b. Cardiomegaly c. Atrophy d. Hypertrophy
a. Cardiomyopathy
The disease process caused by damage to the myelin sheath is called: Select one: a. multiple sclerosis. b. muscular dystrophy. c. Huntington disease. d. Alzheimer disease.
a. multiple sclerosis.
In response to hypoperfusion, the renin-angiotensin-aldosterone system, along with antidiuretic hormone, causes:
Select one:
a. salt and water excretion and peripheral vasoconstriction.
b. salt and water retention and peripheral vasoconstriction.
c. salt and water retention and peripheral vasodilation.
d. salt and water excretion and peripheral vasodilation.
b. salt and water retention and peripheral vasoconstriction.
The human body should be functioning at its optimal level between the ages of: Select one: a. 25 and 35 years. b. 18 and 22 years. c. 21 and 30 years. d. 19 and 25 years.
d. 19 and 25 years.
By the end of the first year of life, a child's tidal volume typically ranges between: Select one: a. 6 and 8 mL/kg. b. 15 and 20 mL/kg. c. 10 and 15 mL/kg. d. 8 and 10 mL/kg
c. 10 and 15 mL/kg.
Which of the following statements regarding toddlers and preschoolers is correct?
Select one:
a. Toddlers and preschoolers have well-developed lung musculature, even though they have less lung tissue.
b. The normal respiratory rate in toddlers and preschoolers is between 12 and 20 breaths/min.
c. Toddlers and preschoolers commonly experience upper respiratory infections because of a loss of passive immunity.
d. Muscle mass and bone density decrease in toddlers and preschoolers because of increased physical activity.
c. Toddlers and preschoolers commonly experience upper respiratory infections because of a loss of passive immunity.
An infant or small child’s airway can be occluded if it is overextended or overflexed because:
Select one:
a. the tongue is proportionately large and the airway is shorter and narrower.
b. he or she has a long neck, which makes the trachea prone to collapse.
c. the tongue is proportionately small and can fall back into the posterior pharynx.
d. the back of the head is flat, which prevents a neutral position.
a. the tongue is proportionately large and the airway is shorter and narrower.
Physical changes that typically occur in early adults include an increase in:
Select one:
a. fatty tissue, which leads to weight gain.
b. muscle strength and reflexes.
c. height because of spinal disc expansion.
d. respiratory rate due to increased metabolism.
a. fatty tissue, which leads to weight gain.
Which of the following are noticeable characteristics of a 9-month-old infant?
Select one:
a. Knows his or her name, can walk without any assistance
b. Places objects in the mouth, pulls him- or herself up
c. Walks without help, becomes frustrated with restrictions
d. Responds to his or her name, crawls around efficiently
b. Places objects in the mouth, pulls him- or herself up