,BIOD151/BIOD 151 Final Exam | Essential Human Anatomy &
Physiology I with Lab | Portage Learning | Q & A | 2026/2027
Edition (PDF)
1. Which of the following best describes the study of the structure of the human body?
A) Physiology
B) Anatomy
C) Cytology
D) Histology
Correct Answer: Anatomy
Rationale: Anatomy is the study of the structure and shape of the body and its parts. Physiology is the
study of function, cytology is the study of cells, and histology is the study of tissues.
2. What is the correct order of the six levels of structural organization in the human body, from simplest
to most complex?
A) Chemical, cellular, tissue, organ, organ system, organism
B) Chemical, tissue, cellular, organ, organ system, organism
C) Cellular, chemical, tissue, organ, organ system, organism
D) Tissue, cellular, chemical, organ, organ system, organism
Correct Answer: Chemical, cellular, tissue, organ, organ system, organism
Rationale: The body is organized in a hierarchy from the simplest chemical level to the most complex
organism level. Cells are made of molecules, tissues are groups of similar cells, organs are made of
different tissues, and organ systems work together to maintain life.
3. Which organ system provides the necessary life function that protects our internal environment from
our external environment?
A) Muscular system
,B) Skeletal system
C) Integumentary system
D) Nervous system
Correct Answer: Integumentary system
Rationale: The integumentary system (skin, hair, nails) acts as a physical barrier protecting internal
organs from mechanical damage, pathogens, UV radiation, and dehydration.
4. The frontal plane is also known as which of the following?
A) Transverse plane
B) Sagittal plane
C) Coronal plane
D) Midsagittal plane
Correct Answer: Coronal plane
Rationale: The frontal plane, also called the coronal plane, divides the body into anterior (ventral) and
posterior (dorsal) portions.
5. Which of the following terms means "closer to the point of attachment or trunk"?
A) Distal
B) Proximal
C) Lateral
D) Medial
Correct Answer: Proximal
Rationale: Proximal means closer to the point of attachment or trunk, while distal means farther away.
The elbow is proximal to the hand because it is closer to the shoulder.
, 6. Which cavity primarily protects the nervous system organs?
A) Ventral cavity
B) Thoracic cavity
C) Dorsal cavity
D) Abdominal cavity
Correct Answer: Dorsal cavity
Rationale: The dorsal cavity, which includes the cranial and vertebral cavities, primarily protects the
nervous system organs (brain and spinal cord). The ventral cavity protects the internal organs of the
thorax and abdomen.
7. What is the primary function of the muscular system?
A) To protect internal organs
B) To provide movement
C) To filter blood
D) To produce hormones
Correct Answer: To provide movement
Rationale: Skeletal muscles contract and relax to produce movement of bones at joints. The muscular
system also generates heat and maintains posture.
8. What is the breakdown of nutrients into simpler substances called?
A) Anabolism
B) Catabolism
C) Metabolism
D) Digestion
Physiology I with Lab | Portage Learning | Q & A | 2026/2027
Edition (PDF)
1. Which of the following best describes the study of the structure of the human body?
A) Physiology
B) Anatomy
C) Cytology
D) Histology
Correct Answer: Anatomy
Rationale: Anatomy is the study of the structure and shape of the body and its parts. Physiology is the
study of function, cytology is the study of cells, and histology is the study of tissues.
2. What is the correct order of the six levels of structural organization in the human body, from simplest
to most complex?
A) Chemical, cellular, tissue, organ, organ system, organism
B) Chemical, tissue, cellular, organ, organ system, organism
C) Cellular, chemical, tissue, organ, organ system, organism
D) Tissue, cellular, chemical, organ, organ system, organism
Correct Answer: Chemical, cellular, tissue, organ, organ system, organism
Rationale: The body is organized in a hierarchy from the simplest chemical level to the most complex
organism level. Cells are made of molecules, tissues are groups of similar cells, organs are made of
different tissues, and organ systems work together to maintain life.
3. Which organ system provides the necessary life function that protects our internal environment from
our external environment?
A) Muscular system
,B) Skeletal system
C) Integumentary system
D) Nervous system
Correct Answer: Integumentary system
Rationale: The integumentary system (skin, hair, nails) acts as a physical barrier protecting internal
organs from mechanical damage, pathogens, UV radiation, and dehydration.
4. The frontal plane is also known as which of the following?
A) Transverse plane
B) Sagittal plane
C) Coronal plane
D) Midsagittal plane
Correct Answer: Coronal plane
Rationale: The frontal plane, also called the coronal plane, divides the body into anterior (ventral) and
posterior (dorsal) portions.
5. Which of the following terms means "closer to the point of attachment or trunk"?
A) Distal
B) Proximal
C) Lateral
D) Medial
Correct Answer: Proximal
Rationale: Proximal means closer to the point of attachment or trunk, while distal means farther away.
The elbow is proximal to the hand because it is closer to the shoulder.
, 6. Which cavity primarily protects the nervous system organs?
A) Ventral cavity
B) Thoracic cavity
C) Dorsal cavity
D) Abdominal cavity
Correct Answer: Dorsal cavity
Rationale: The dorsal cavity, which includes the cranial and vertebral cavities, primarily protects the
nervous system organs (brain and spinal cord). The ventral cavity protects the internal organs of the
thorax and abdomen.
7. What is the primary function of the muscular system?
A) To protect internal organs
B) To provide movement
C) To filter blood
D) To produce hormones
Correct Answer: To provide movement
Rationale: Skeletal muscles contract and relax to produce movement of bones at joints. The muscular
system also generates heat and maintains posture.
8. What is the breakdown of nutrients into simpler substances called?
A) Anabolism
B) Catabolism
C) Metabolism
D) Digestion
