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NUR 257 Chronic Exam 1 Actual Exam 2026-2027 BANK
QUESTIONS WITH DETAILED VERIFIED ANSWERS EXAM
QUESTIONS WILL COME FROM HERE (100% CORRECT
ANSWERS A+ GRADED
1. Which level of structural organization is the smallest living unit?
A) Chemical
B) Cellular
C) Tissue
D) Organ
Answer: B) Cellular
Explanation: The cellular level is the smallest unit that exhibits all
characteristics of life. The chemical level (atoms and molecules) is
simpler but non-living, while tissues and organs are more complex
levels of organization.
2. A plane that divides the body into anterior and posterior portions is
called the:
A) Transverse plane
B) Coronal plane
C) Sagittal plane
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D) Oblique plane
Answer: B) Coronal plane
Explanation: The coronal (or frontal) plane divides the body vertically
into anterior (front) and posterior (back) sections. A transverse plane
divides horizontally, and a sagittal plane divides into left and right.
3. Homeostasis is best defined as:
A) A constant state maintained within the body
B) A dynamic equilibrium of the internal environment
C) The sum of all chemical reactions
D) The steady increase in body temperature
Answer: B) A dynamic equilibrium of the internal environment
Explanation: Homeostasis refers to the maintenance of a relatively
stable internal environment through dynamic equilibrium, not a rigidly
constant state. It involves continuous monitoring and feedback
adjustments.
4. The directional term “proximal” means:
A) Closer to the point of attachment to the trunk
B) Farther from the point of attachment to the trunk
C) Toward the back of the body
D) Toward the front of the body
Answer: A) Closer to the point of attachment to the trunk
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Explanation: Proximal describes a structure that is nearer to the trunk
of the body or the point of origin of a body part. For example, the
elbow is proximal to the wrist.
5. Which type of feedback system amplifies a change in the body?
A) Negative feedback
B) Positive feedback
C) Set point regulation
D) Adaptive control
Answer: B) Positive feedback
Explanation: Positive feedback mechanisms enhance the original
stimulus, leading to an amplification of change. Childbirth and blood
clotting are classic examples. Negative feedback works to reverse a
change.
6. The abdominopelvic region located directly inferior to the umbilical
region is the:
A) Epigastric region
B) Hypogastric region
C) Lumbar region
D) Hypochondriac region
Answer: B) Hypogastric region
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Explanation: In the nine-region division of the abdominopelvic cavity,
the hypogastric (pubic) region is directly inferior to the umbilical region.
The epigastric region is superior.
7. The primary element forming the backbone of organic molecules is:
A) Oxygen
B) Hydrogen
C) Nitrogen
D) Carbon
Answer: D) Carbon
Explanation: Carbon is the fundamental element in organic molecules
due to its ability to form four covalent bonds, allowing for complex
chains and ring structures necessary for biomolecules.
8. A solution with a pH of 9 is considered:
A) Strongly acidic
B) Neutral
C) Weakly alkaline
D) Strongly alkaline
Answer: C) Weakly alkaline
Explanation: A pH above 7 is basic or alkaline. A pH of 9 is moderately
alkaline; strongly alkaline solutions typically have a pH near 14.
NUR 257 Chronic Exam 1 Actual Exam 2026-2027 BANK
QUESTIONS WITH DETAILED VERIFIED ANSWERS EXAM
QUESTIONS WILL COME FROM HERE (100% CORRECT
ANSWERS A+ GRADED
1. Which level of structural organization is the smallest living unit?
A) Chemical
B) Cellular
C) Tissue
D) Organ
Answer: B) Cellular
Explanation: The cellular level is the smallest unit that exhibits all
characteristics of life. The chemical level (atoms and molecules) is
simpler but non-living, while tissues and organs are more complex
levels of organization.
2. A plane that divides the body into anterior and posterior portions is
called the:
A) Transverse plane
B) Coronal plane
C) Sagittal plane
,2|Page
D) Oblique plane
Answer: B) Coronal plane
Explanation: The coronal (or frontal) plane divides the body vertically
into anterior (front) and posterior (back) sections. A transverse plane
divides horizontally, and a sagittal plane divides into left and right.
3. Homeostasis is best defined as:
A) A constant state maintained within the body
B) A dynamic equilibrium of the internal environment
C) The sum of all chemical reactions
D) The steady increase in body temperature
Answer: B) A dynamic equilibrium of the internal environment
Explanation: Homeostasis refers to the maintenance of a relatively
stable internal environment through dynamic equilibrium, not a rigidly
constant state. It involves continuous monitoring and feedback
adjustments.
4. The directional term “proximal” means:
A) Closer to the point of attachment to the trunk
B) Farther from the point of attachment to the trunk
C) Toward the back of the body
D) Toward the front of the body
Answer: A) Closer to the point of attachment to the trunk
,3|Page
Explanation: Proximal describes a structure that is nearer to the trunk
of the body or the point of origin of a body part. For example, the
elbow is proximal to the wrist.
5. Which type of feedback system amplifies a change in the body?
A) Negative feedback
B) Positive feedback
C) Set point regulation
D) Adaptive control
Answer: B) Positive feedback
Explanation: Positive feedback mechanisms enhance the original
stimulus, leading to an amplification of change. Childbirth and blood
clotting are classic examples. Negative feedback works to reverse a
change.
6. The abdominopelvic region located directly inferior to the umbilical
region is the:
A) Epigastric region
B) Hypogastric region
C) Lumbar region
D) Hypochondriac region
Answer: B) Hypogastric region
, 4|Page
Explanation: In the nine-region division of the abdominopelvic cavity,
the hypogastric (pubic) region is directly inferior to the umbilical region.
The epigastric region is superior.
7. The primary element forming the backbone of organic molecules is:
A) Oxygen
B) Hydrogen
C) Nitrogen
D) Carbon
Answer: D) Carbon
Explanation: Carbon is the fundamental element in organic molecules
due to its ability to form four covalent bonds, allowing for complex
chains and ring structures necessary for biomolecules.
8. A solution with a pH of 9 is considered:
A) Strongly acidic
B) Neutral
C) Weakly alkaline
D) Strongly alkaline
Answer: C) Weakly alkaline
Explanation: A pH above 7 is basic or alkaline. A pH of 9 is moderately
alkaline; strongly alkaline solutions typically have a pH near 14.
