Human Sciences | 60+ Practice
Questions & Answers
This comprehensive practice exam is designed to help you prepare for
the NU110 Integrated Human Sciences course. The material covers
foundational concepts in anatomy, physiology, and pathophysiology.
SECTION 1: CARDIOVASCULAR SYSTEM
Question 1
A heart rate of more than 100 bpm is termed:
A. Bradycardia
B. Tachycardia
C. Arrhythmia
D. Palpitation
Answer: B. Tachycardia
Rationale: Tachycardia is defined as a resting heart rate greater than
100 beats per minute (bpm). Bradycardia is a heart rate less than 60
bpm.
Question 2
,Abnormally slow heart rate is termed:
A. Tachycardia
B. Bradycardia
C. Dysrhythmia
D. Palpitation
Answer: B. Bradycardia
Rationale: Bradycardia is defined as a heart rate of less than 60 beats
per minute in a resting adult.
Question 3
What is the outermost layer of the heart wall?
A. Endocardium
B. Myocardium
C. Epicardium
D. Pericardium
Answer: C. Epicardium
Rationale: The epicardium is the outermost layer of the heart wall. The
myocardium is the muscular middle layer, and the endocardium is the
innermost layer lining the chambers.
Question 4
Which heart chamber receives blood from the lungs?
, A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Answer: C. Left atrium
Rationale: The left atrium receives oxygenated blood from the
pulmonary veins returning from the lungs. The right atrium receives
deoxygenated blood from the body.
Question 5
The segment of the aorta that delivers blood to the upper region of the
body via the right and left common carotid and subclavian arteries is
the:
A. Ascending aorta
B. Aortic arch
C. Descending aorta
D. Abdominal aorta
Answer: B. Aortic arch
Rationale: The aortic arch curves and gives rise to branches that
supply the head, neck, and upper extremities.
Question 6