NU110 Exam 1 Actual Exam Style V3 | NU
110 Integrated Human Sciences | Galen
1. What is the primary definition of homeostasis in the human body?
A. The constant movement of blood through the circulatory system.
B. The maintenance of a relatively stable internal environment.
C. The process of physical growth and development over time.
D. The ability to respond to external stimuli via the nervous system.
Correct Answer: B
Expert Explanation: Homeostasis refers to the body’s ability to maintain internal stability
even when external conditions change. It involves complex feedback loops that regulate
temperature, pH, and fluid balance. This state of dynamic equilibrium is essential for the
survival of all living organisms.
2. Which anatomical term describes a position toward the head or upper part of a structure?
A. Inferior
B. Distal
C. Superior
D. Proximal
Correct Answer: C
,Expert Explanation: Superior is a directional term used to denote a structure that is
higher than another or closer to the head. For example, the forehead is superior to the nose.
Understanding these terms is fundamental for accurately describing locations in human
anatomy.
3. In the standard anatomical position, how are the palms of the hands oriented?
A. Facing toward the back
B. Facing toward the thighs
C. Clenched into fists
D. Facing forward
Correct Answer: D
Expert Explanation: The standard anatomical position serves as a consistent reference
point for all medical descriptions. In this position, the body is upright, feet are flat, and the
palms face forward with thumbs pointing away from the body. Using this universal
standard prevents confusion when describing body parts and their relations.
4. A sagittal plane divides the body into which sections?
A. Superior and inferior portions
B. Right and left portions
C. Anterior and posterior portions
D. Internal and external portions
, Correct Answer: B
Expert Explanation: A sagittal plane runs vertically through the body, separating it into
right and left sides. If the plane passes directly through the midline, it is specifically called a
midsagittal plane. These imaginary lines are used by clinicians to visualize and categorize
different sections of the body.
5. Which of the following represents the smallest living unit of structure and function in the
body?
A. Cell
B. Molecule
C. Atom
D. Tissue
Correct Answer: A
Expert Explanation: The cell is considered the basic building block of all living organisms.
While atoms and molecules are smaller, they are not considered alive on their own. Groups
of similar cells work together to form tissues, which then form organs.
6. Which subatomic particle carries a positive electrical charge?
A. Electron
B. Neutron
C. Isotope
110 Integrated Human Sciences | Galen
1. What is the primary definition of homeostasis in the human body?
A. The constant movement of blood through the circulatory system.
B. The maintenance of a relatively stable internal environment.
C. The process of physical growth and development over time.
D. The ability to respond to external stimuli via the nervous system.
Correct Answer: B
Expert Explanation: Homeostasis refers to the body’s ability to maintain internal stability
even when external conditions change. It involves complex feedback loops that regulate
temperature, pH, and fluid balance. This state of dynamic equilibrium is essential for the
survival of all living organisms.
2. Which anatomical term describes a position toward the head or upper part of a structure?
A. Inferior
B. Distal
C. Superior
D. Proximal
Correct Answer: C
,Expert Explanation: Superior is a directional term used to denote a structure that is
higher than another or closer to the head. For example, the forehead is superior to the nose.
Understanding these terms is fundamental for accurately describing locations in human
anatomy.
3. In the standard anatomical position, how are the palms of the hands oriented?
A. Facing toward the back
B. Facing toward the thighs
C. Clenched into fists
D. Facing forward
Correct Answer: D
Expert Explanation: The standard anatomical position serves as a consistent reference
point for all medical descriptions. In this position, the body is upright, feet are flat, and the
palms face forward with thumbs pointing away from the body. Using this universal
standard prevents confusion when describing body parts and their relations.
4. A sagittal plane divides the body into which sections?
A. Superior and inferior portions
B. Right and left portions
C. Anterior and posterior portions
D. Internal and external portions
, Correct Answer: B
Expert Explanation: A sagittal plane runs vertically through the body, separating it into
right and left sides. If the plane passes directly through the midline, it is specifically called a
midsagittal plane. These imaginary lines are used by clinicians to visualize and categorize
different sections of the body.
5. Which of the following represents the smallest living unit of structure and function in the
body?
A. Cell
B. Molecule
C. Atom
D. Tissue
Correct Answer: A
Expert Explanation: The cell is considered the basic building block of all living organisms.
While atoms and molecules are smaller, they are not considered alive on their own. Groups
of similar cells work together to form tissues, which then form organs.
6. Which subatomic particle carries a positive electrical charge?
A. Electron
B. Neutron
C. Isotope
