DAANCE (All Modules) Practice Exam – 200 Questions with
Verified Answers & Explanations
Question 1
Which chamber of the heart pumps oxygenated blood into the systemic circulati on?
A) Right atrium
B) Right ventricle
C) Left atrium
D) Left ventricle
Correct Answer: D
Rationale: The left ventricle pumps oxygenated blood through the aorta into the systemic circulation. It
has the thickest myocardial wall to generate the pressure needed for systemic perfusion.
Question 2
What is the primary pacemaker of the heart?
A) Atrioventricular (AV) node
B) Bundle of His
C) Sinoatrial (SA) node
D) Purkinje fibers
Correct Answer: C
Rationale: The sinoatrial (SA) node is the primary pacemaker, generating electrical impulses at 60100
beats per minute.
,Question 3
What is the normal PR interval duration?
A) 0.040.10 seconds
B) 0.120.20 seconds
C) 0.200.30 seconds
D) 0.300.40 seconds
Correct Answer: B
Rationale: The normal PR interval is 0.120.20 seconds (120200 milliseconds).
Question 4
What is the normal resting heart rate for an adult?
A) 4060 beats per minute
B) 60100 beats per minute
C) 100120 beats per minute
D) 120140 beats per minute
Correct Answer: B
Rationale: Normal adult resting heart rate is 60100 beats per minute. Bradycardia is <60 bpm;
tachycardia is >100 bpm.
Question 5
What is cardiac output (CO)?
A) Heart rate multiplied by stroke volume
B) Heart rate divided by stroke volume
,C) Stroke volume minus heart rate
D) Systolic pressure minus diastolic pressure
Correct Answer: A
Rationale: Cardiac output = Heart rate × Stroke volume.
Question 6
What is the formula for Mean Arterial Pressure (MAP)?
A) (Systolic + Diastolic) / 2
B) Diastolic + 1/3 (Systolic Diastolic)
C) Systolic Diastolic
D) (Systolic × Diastolic) / 2
Correct Answer: B
Rationale: MAP = Diastolic + 1/3 (Systolic Diastolic). Normal MAP is 70100 mmHg.
Question 7
Which blood vessels are responsible for gas exchange?
A) Arteries
B) Arterioles
C) Capillaries
D) Venules
Correct Answer: C
Rationale: Capillaries are the sites of gas exchange between blood and tissues.
, Question 8
What is the role of the central nervous system?
A) To regulate body temperature only
B) To provide overall control of body function
C) To control digestive processes
D) To regulate hormone secretion
Correct Answer: B
Rationale: The central nervous system provides overall control of body function.
Question 9
What are the three subdivisions of the nervous system?
A) Central, Peripheral, Autonomic
B) Sympathetic, Parasympathetic, Enteric
C) Brain, Spinal Cord, Nerves
D) Motor, Sensory, Interneurons
Correct Answer: A
Rationale: The three subdivisions are the Central Nervous System, Peripheral Nervous System, and
Autonomic Nervous System.
Question 10
Verified Answers & Explanations
Question 1
Which chamber of the heart pumps oxygenated blood into the systemic circulati on?
A) Right atrium
B) Right ventricle
C) Left atrium
D) Left ventricle
Correct Answer: D
Rationale: The left ventricle pumps oxygenated blood through the aorta into the systemic circulation. It
has the thickest myocardial wall to generate the pressure needed for systemic perfusion.
Question 2
What is the primary pacemaker of the heart?
A) Atrioventricular (AV) node
B) Bundle of His
C) Sinoatrial (SA) node
D) Purkinje fibers
Correct Answer: C
Rationale: The sinoatrial (SA) node is the primary pacemaker, generating electrical impulses at 60100
beats per minute.
,Question 3
What is the normal PR interval duration?
A) 0.040.10 seconds
B) 0.120.20 seconds
C) 0.200.30 seconds
D) 0.300.40 seconds
Correct Answer: B
Rationale: The normal PR interval is 0.120.20 seconds (120200 milliseconds).
Question 4
What is the normal resting heart rate for an adult?
A) 4060 beats per minute
B) 60100 beats per minute
C) 100120 beats per minute
D) 120140 beats per minute
Correct Answer: B
Rationale: Normal adult resting heart rate is 60100 beats per minute. Bradycardia is <60 bpm;
tachycardia is >100 bpm.
Question 5
What is cardiac output (CO)?
A) Heart rate multiplied by stroke volume
B) Heart rate divided by stroke volume
,C) Stroke volume minus heart rate
D) Systolic pressure minus diastolic pressure
Correct Answer: A
Rationale: Cardiac output = Heart rate × Stroke volume.
Question 6
What is the formula for Mean Arterial Pressure (MAP)?
A) (Systolic + Diastolic) / 2
B) Diastolic + 1/3 (Systolic Diastolic)
C) Systolic Diastolic
D) (Systolic × Diastolic) / 2
Correct Answer: B
Rationale: MAP = Diastolic + 1/3 (Systolic Diastolic). Normal MAP is 70100 mmHg.
Question 7
Which blood vessels are responsible for gas exchange?
A) Arteries
B) Arterioles
C) Capillaries
D) Venules
Correct Answer: C
Rationale: Capillaries are the sites of gas exchange between blood and tissues.
, Question 8
What is the role of the central nervous system?
A) To regulate body temperature only
B) To provide overall control of body function
C) To control digestive processes
D) To regulate hormone secretion
Correct Answer: B
Rationale: The central nervous system provides overall control of body function.
Question 9
What are the three subdivisions of the nervous system?
A) Central, Peripheral, Autonomic
B) Sympathetic, Parasympathetic, Enteric
C) Brain, Spinal Cord, Nerves
D) Motor, Sensory, Interneurons
Correct Answer: A
Rationale: The three subdivisions are the Central Nervous System, Peripheral Nervous System, and
Autonomic Nervous System.
Question 10
