#1
Which of the following is NOT a primary function of the immune system?
Maintaining fluid balance
ExplanationImmune system primarily focuses on defense against pathogens, not fluid balance.
#2
Which of the following is a risk factor for the development of atherosclerosis?
Low-density lipoprotein (LDL) cholesterol
ExplanationElevated LDL cholesterol is a major risk factor for atherosclerosis.
#3
Which of the following is a risk factor for the development of type 2 diabetes mellitus?
Obesity
ExplanationObesity is a significant risk factor for the development of type 2 diabetes.
#4
Which of the following is a primary function of the kidneys?
Filtration of blood and excretion of waste products
ExplanationThe kidneys filter blood and eliminate waste products through urine.
#5
Which of the following is a risk factor for the development of chronic obstructive pulmonary disease (COPD)?
Exposure to secondhand smoke
ExplanationExposure to secondhand smoke is a major risk factor for COPD.
#6
Which of the following is a risk factor for the development of gout?
Regular intake of alcohol
ExplanationRegular alcohol intake is a known risk factor for the development of gout.
#7
What is the term for the process by which cells convert glucose into usable energy?
Glycolysis
ExplanationGlycolysis is the cellular process of converting glucose into ATP for energy.
#8
Which of the following is a characteristic of chronic inflammation?
Tissue destruction and repair
ExplanationChronic inflammation leads to prolonged tissue damage and subsequent repair processes.
#9
What is the primary defect in cystic fibrosis?
Defective chloride transport
ExplanationCystic fibrosis is primarily caused by a malfunction in chloride ion transport.
#10
Which of the following is a hallmark feature of systemic lupus erythematosus (SLE)?
Presence of a butterfly rash on the face
ExplanationThe butterfly rash on the face is a distinctive feature of systemic lupus erythematosus.
#11
What is the primary cause of peptic ulcers?
Bacterial infection with Helicobacter pylori
ExplanationPeptic ulcers are primarily caused by Helicobacter pylori bacterial infection.
#12
Which of the following is a characteristic of acute inflammation?
Increased vascular permeability
ExplanationAcute inflammation is characterized by increased permeability of blood vessels.
#13
What is the primary cause of rheumatoid arthritis?
Autoimmune reaction against joint tissues
ExplanationRheumatoid arthritis is caused by the immune system attacking joint tissues.
#14
What is the primary pathophysiological mechanism underlying osteoarthritis?
Degeneration of cartilage due to mechanical stress
ExplanationOsteoarthritis results from the mechanical stress-induced degeneration of joint cartilage.
#15
Which of the following is a characteristic feature of chronic renal failure?
Retention of urea and creatinine
ExplanationChronic renal failure is marked by the retention of urea and creatinine in the bloodstream.
#16
Which of the following is a hallmark sign of Type 1 diabetes mellitus?
Ketosis
ExplanationKetosis, the presence of ketone bodies, is a characteristic sign of uncontrolled Type 1 diabetes.
#17
Which of the following best describes the pathophysiology of asthma?
Chronic bronchial inflammation and airway hyperresponsiveness
ExplanationAsthma is characterized by chronic inflammation and hyperresponsiveness of the airways.
#18
Which of the following is a characteristic feature of Alzheimer's disease?
Amyloid plaques and neurofibrillary tangles
ExplanationAlzheimer's disease is marked by the presence of abnormal protein accumulations in the brain.
#19
What is the primary pathophysiological mechanism underlying acute respiratory distress syndrome (ARDS)?
Impaired alveolar gas exchange
ExplanationARDS is characterized by the impaired exchange of gases in the alveoli.
#20
Which of the following is a characteristic feature of Parkinson's disease?
Presence of Lewy bodies in neurons
ExplanationParkinson's disease is marked by the presence of abnormal protein aggregates called Lewy bodies.
#21
What is the main pathophysiological consequence of congestive heart failure?
Impaired myocardial contractility
ExplanationCongestive heart failure results in decreased ability of the heart to contract effectively.
#22
Which of the following is a characteristic feature of multiple sclerosis?
Demyelination of central nervous system neurons
ExplanationMultiple sclerosis is characterized by the loss of myelin in the central nervous system.
#23
What is the primary pathophysiological mechanism underlying septic shock?
Vasodilation and increased vascular permeability
ExplanationSeptic shock is characterized by widespread vasodilation and increased vascular permeability.
#24
Which of the following is a characteristic feature of Crohn's disease?
Transmural inflammation with skip lesions
ExplanationCrohn's disease is characterized by inflammation through the entire thickness of the bowel wall with skip lesions.
#25
What is the primary defect in hemophilia?
Abnormal clotting factor function
ExplanationHemophilia is characterized by a deficiency or dysfunction of clotting factors, leading to impaired blood clotting.