BIOD 151 Anatomy and Physiology 1 | Portage
Learning | Academic Year 2026/2027 |
Comprehensive Exam
MODULE 1: Introduction to Anatomy & Physiology, Cells, and Tissues
1. Which of the following represents the correct sequence from simplest to
most complex in the structural hierarchy of the human body?
A) Organism → Organ system → Organ → Tissue → Cellular → Chemical
B) Chemical → Cellular → Tissue → Organ → Organ system → Organism
C) Cellular → Chemical → Tissue → Organ → Organ system → Organism
D) Chemical → Tissue → Cellular → Organ → Organ system → Organism
Correct Answer: B
Rationale: The structural hierarchy begins at the chemical level (atoms,
molecules), progresses to the cellular level (cells), then tissue level (groups of
similar cells), organ level (structures of two or more tissue types), organ system
level (related organs working together), and finally the organism level. Options A,
C, and D present incorrect sequences. This fundamental concept establishes the
framework for understanding how the body is organized from microscopic to
macroscopic levels.
2. Which directional term describes the position of the elbow relative to the
shoulder?
A) Proximal
B) Distal
C) Lateral
D) Medial
Correct Answer: B
,Rationale: Distal means farther from the point of attachment or the trunk
of the body. The elbow is farther down the arm from the shoulder. Proximal
would mean closer to the trunk (shoulder relative to elbow). Lateral means away
from the midline, and medial means toward the midline. Directional terminology
is essential for precise anatomical communication.
3. Homeostasis is best defined as:
A) A state of disease in the body
B) The body's ability to maintain a relatively stable internal environment despite
external changes
C) The fluctuation of body systems away from a set point
D) The inability of the body to regulate temperature
Correct Answer: B
Rationale: Homeostasis refers to the dynamic state of equilibrium within
the body's internal environment (e.g., temperature, pH, glucose levels). It involves
continuous monitoring and adjustment via feedback loops. This is a core concept
that underpins all physiological processes.
4. Which plane divides the body into equal left and right halves?
A) Frontal (Coronal) plane
B) Transverse (Horizontal) plane
C) Midsagittal plane
D) Oblique plane
Correct Answer: C
Rationale: A sagittal plane divides the body vertically into right and left
portions. The midsagittal plane specifically divides it into equal halves. The frontal
plane divides into anterior and posterior portions, and the transverse plane
divides into superior and inferior portions.
,5. A patient is lying on their back, facing upward. This position is known as:
A) Prone
B) Supine
C) Lateral
D) Fowler's
Correct Answer: B
Rationale: Supine describes the body lying face upward. Prone describes
the body lying face downward. Lateral refers to the side, and Fowler's is a semi-
sitting position. This terminology is frequently used in clinical settings for patient
positioning.
6. Which of the following is an example of a negative feedback mechanism?
A) Childbirth contractions
B) Blood clotting cascade
C) Regulation of body temperature
D) Lactation
Correct Answer: C
Rationale: Negative feedback mechanisms reverse a stimulus to maintain
homeostasis. If body temperature rises, the body responds by sweating and
vasodilation to cool down. Options A, B, and D are examples of positive feedback,
where the response enhances or amplifies the stimulus.
7. The ventral body cavity contains which of the following subdivisions?
A) Cranial and spinal cavities
B) Thoracic and abdominopelvic cavities
C) Dorsal and vertebral cavities
D) Pleural and pericardial cavities only
Correct Answer: B
, Rationale: The ventral cavity is the larger anterior cavity that includes the
thoracic cavity (lungs, heart) and the abdominopelvic cavity (digestive organs,
reproductive organs). The dorsal cavity contains the cranial and spinal cavities.
8. Which region of the abdomen is located immediately superior to the
umbilical region?
A) Hypogastric region
B) Iliac region
C) Epigastric region
D) Lumbar region
Correct Answer: C
Rationale: The abdominopelvic regions are arranged in a 3×3 grid. The
epigastric region is located superior to the umbilical region (centrally). The
hypogastric region is inferior, and the iliac regions are inferior-lateral.
9. Which organelle is primarily responsible for producing ATP in a cell?
A) Ribosome
B) Mitochondrion
C) Lysosome
D) Golgi apparatus
Correct Answer: B
Rationale: Mitochondria generate most cellular ATP through aerobic
cellular respiration. They are often called the "powerhouses" of the cell.
Ribosomes synthesize proteins, lysosomes contain digestive enzymes, and the
Golgi apparatus modifies and packages proteins.
10. Which structure controls movement of substances into and out of the cell?
A) Plasma membrane
B) Nucleolus
Learning | Academic Year 2026/2027 |
Comprehensive Exam
MODULE 1: Introduction to Anatomy & Physiology, Cells, and Tissues
1. Which of the following represents the correct sequence from simplest to
most complex in the structural hierarchy of the human body?
A) Organism → Organ system → Organ → Tissue → Cellular → Chemical
B) Chemical → Cellular → Tissue → Organ → Organ system → Organism
C) Cellular → Chemical → Tissue → Organ → Organ system → Organism
D) Chemical → Tissue → Cellular → Organ → Organ system → Organism
Correct Answer: B
Rationale: The structural hierarchy begins at the chemical level (atoms,
molecules), progresses to the cellular level (cells), then tissue level (groups of
similar cells), organ level (structures of two or more tissue types), organ system
level (related organs working together), and finally the organism level. Options A,
C, and D present incorrect sequences. This fundamental concept establishes the
framework for understanding how the body is organized from microscopic to
macroscopic levels.
2. Which directional term describes the position of the elbow relative to the
shoulder?
A) Proximal
B) Distal
C) Lateral
D) Medial
Correct Answer: B
,Rationale: Distal means farther from the point of attachment or the trunk
of the body. The elbow is farther down the arm from the shoulder. Proximal
would mean closer to the trunk (shoulder relative to elbow). Lateral means away
from the midline, and medial means toward the midline. Directional terminology
is essential for precise anatomical communication.
3. Homeostasis is best defined as:
A) A state of disease in the body
B) The body's ability to maintain a relatively stable internal environment despite
external changes
C) The fluctuation of body systems away from a set point
D) The inability of the body to regulate temperature
Correct Answer: B
Rationale: Homeostasis refers to the dynamic state of equilibrium within
the body's internal environment (e.g., temperature, pH, glucose levels). It involves
continuous monitoring and adjustment via feedback loops. This is a core concept
that underpins all physiological processes.
4. Which plane divides the body into equal left and right halves?
A) Frontal (Coronal) plane
B) Transverse (Horizontal) plane
C) Midsagittal plane
D) Oblique plane
Correct Answer: C
Rationale: A sagittal plane divides the body vertically into right and left
portions. The midsagittal plane specifically divides it into equal halves. The frontal
plane divides into anterior and posterior portions, and the transverse plane
divides into superior and inferior portions.
,5. A patient is lying on their back, facing upward. This position is known as:
A) Prone
B) Supine
C) Lateral
D) Fowler's
Correct Answer: B
Rationale: Supine describes the body lying face upward. Prone describes
the body lying face downward. Lateral refers to the side, and Fowler's is a semi-
sitting position. This terminology is frequently used in clinical settings for patient
positioning.
6. Which of the following is an example of a negative feedback mechanism?
A) Childbirth contractions
B) Blood clotting cascade
C) Regulation of body temperature
D) Lactation
Correct Answer: C
Rationale: Negative feedback mechanisms reverse a stimulus to maintain
homeostasis. If body temperature rises, the body responds by sweating and
vasodilation to cool down. Options A, B, and D are examples of positive feedback,
where the response enhances or amplifies the stimulus.
7. The ventral body cavity contains which of the following subdivisions?
A) Cranial and spinal cavities
B) Thoracic and abdominopelvic cavities
C) Dorsal and vertebral cavities
D) Pleural and pericardial cavities only
Correct Answer: B
, Rationale: The ventral cavity is the larger anterior cavity that includes the
thoracic cavity (lungs, heart) and the abdominopelvic cavity (digestive organs,
reproductive organs). The dorsal cavity contains the cranial and spinal cavities.
8. Which region of the abdomen is located immediately superior to the
umbilical region?
A) Hypogastric region
B) Iliac region
C) Epigastric region
D) Lumbar region
Correct Answer: C
Rationale: The abdominopelvic regions are arranged in a 3×3 grid. The
epigastric region is located superior to the umbilical region (centrally). The
hypogastric region is inferior, and the iliac regions are inferior-lateral.
9. Which organelle is primarily responsible for producing ATP in a cell?
A) Ribosome
B) Mitochondrion
C) Lysosome
D) Golgi apparatus
Correct Answer: B
Rationale: Mitochondria generate most cellular ATP through aerobic
cellular respiration. They are often called the "powerhouses" of the cell.
Ribosomes synthesize proteins, lysosomes contain digestive enzymes, and the
Golgi apparatus modifies and packages proteins.
10. Which structure controls movement of substances into and out of the cell?
A) Plasma membrane
B) Nucleolus
