#1
Which of the following is a function of the respiratory system?
Transporting oxygen throughout the body
Producing insulin
Filtering waste products from the blood
Regulating body temperature
#2
What is the main function of the cardiovascular system?
Digestion
Transporting nutrients and oxygen to cells
Producing hormones
Regulating body temperature
#3
Which of the following is NOT a component of the cardiovascular system?
Heart
Lungs
Blood vessels
Kidneys
#4
Which of the following is a technique used to assess cardiovascular function by measuring blood pressure in different positions?
Spirometry
Electrocardiography
Orthostatic vital signs
Arterial blood gas analysis
#5
What is the term for the force exerted by circulating blood against the walls of blood vessels?
Cardiac output
Pulse rate
Blood pressure
Respiratory rate
#6
Which of the following is a disorder characterized by an irregular heart rhythm?
Hypertension
Arrhythmia
Emphysema
Thrombosis
#7
Which of the following is NOT a component of the respiratory system?
Trachea
Bronchi
Esophagus
Alveoli
#8
What is the medical term for difficulty breathing?
Arrhythmia
Apnea
Dyspnea
Tachypnea
#9
Which of the following is NOT a symptom of a heart attack?
Chest pain or discomfort
Shortness of breath
Persistent cough
Nausea or vomiting
#10
What is the role of the diaphragm in respiration?
It contracts to facilitate inhalation
It relaxes to facilitate exhalation
It regulates blood pressure
It pumps oxygenated blood to the body
#11
What is the role of hemoglobin in the respiratory system?
Transporting oxygen in the blood
Producing energy for muscle contraction
Digesting food
Regulating body temperature
#12
Which blood vessel carries oxygenated blood away from the heart?
Pulmonary artery
Pulmonary vein
Aorta
Vena cava
#13
Which of the following is a major risk factor for cardiovascular diseases?
Regular physical activity
Low blood pressure
High cholesterol levels
Healthy diet
#14
Which of the following is a common sign of respiratory distress in adults?
Low blood pressure
Slow heart rate
Cyanosis
Increased urine output
#15
What is the function of the atrioventricular node (AV node) in the heart?
Initiating the heartbeat
Regulating blood pressure
Conducting electrical signals between atria and ventricles
Pumping oxygenated blood to the body
#16
What is the function of the sinoatrial node (SA node) in the heart?
Initiating the heartbeat
Regulating blood pressure
Conducting electrical signals between atria and ventricles
Pumping oxygenated blood to the body
#17
Which condition is characterized by the inflammation of the airways and difficulty breathing?
Asthma
Pneumonia
Emphysema
Bronchitis
#18
What is the primary function of the alveoli in the respiratory system?
To produce mucus
To exchange oxygen and carbon dioxide
To filter blood
To regulate blood pressure