StraighterLine Anatomy Final Exam | 2025/2026
Edition | Exam Questions with 100% Verified
Correct Answers
StraighterLine Anatomy Final Examination — Human Body Structure & Function, Cellular and
Tissue Organization, Major Organ Systems, Homeostasis, and Physiological Processes |
Expert-Verified Q&A | Exam-Ready for Academic Success
Introduction
This document contains the complete and updated verified questions and correct answers from
the StraighterLine Anatomy Final Exam for the 2025/2026 academic year. The content
encompasses key anatomical concepts, structural organization, physiological mechanisms, and
system-level functions essential for mastery in human anatomy. Each answer is accurate and
clearly explained, supporting comprehensive understanding and ensuring readiness for top
performance on the final assessment.
Answer Format
All correct answers are presented in bold and green, with concise explanations that
strengthen knowledge of anatomical terminology, physiological relationships, and the
integration of body systems.
StraighterLine Anatomy Final Exam Q&A | Verified 2025/2026 Content |
Academic-Aligned | Confidence for High Scores
Question 1
What is the smallest structural and functional unit of the human body?
A) Tissue
B) Organ
C) Cell
D) Organ System
C) Cell
Explanation: The cell is the basic building block that performs all life processes.
Question 2
Which organelle is responsible for producing energy in the form of ATP?
A) Nucleus
B) Mitochondria
C) Endoplasmic Reticulum
D) Golgi Apparatus
,B) Mitochondria
Explanation: Mitochondria are known as the powerhouse of the cell due to ATP production.
Question 3
What type of tissue is primarily responsible for contraction and movement?
A) Epithelial Tissue
B) Connective Tissue
C) Muscle Tissue
D) Nervous Tissue
C) Muscle Tissue
Explanation: Muscle tissue enables body movement through contraction.
Question 4
Which organ system is responsible for the exchange of gases between the body and the
environment?
A) Digestive System
B) Respiratory System
C) Circulatory System
D) Urinary System
B) Respiratory System
Explanation: The respiratory system facilitates oxygen intake and carbon dioxide expulsion.
Question 5
What is the primary function of the integumentary system?
A) Regulation of blood pressure
B) Protection and temperature regulation
C) Production of hormones
D) Digestion of food
B) Protection and temperature regulation
Explanation: The skin and its appendages protect against pathogens and regulate body
temperature.
Question 6
Which bone is the longest in the human body?
A) Femur
B) Humerus
C) Tibia
D) Radius
A) Femur
Explanation: The femur, or thigh bone, is the longest and strongest bone.
Question 7
What is the primary role of the skeletal system?
A) Transmission of nerve impulses
B) Support, protection, and movement
C) Production of digestive enzymes
D) Regulation of blood sugar
, B) Support, protection, and movement
Explanation: The skeleton provides structural support and protects vital organs.
Question 8
Which muscle type is under voluntary control?
A) Smooth Muscle
B) Cardiac Muscle
C) Skeletal Muscle
D) Involuntary Muscle
C) Skeletal Muscle
Explanation: Skeletal muscle is controlled consciously for movement.
Question 9
What is the main function of the nervous system?
A) Filtration of blood
B) Coordination and communication
C) Production of red blood cells
D) Digestion of nutrients
B) Coordination and communication
Explanation: The nervous system regulates body activities through electrical signals.
Question 10
Which hormone is produced by the thyroid gland to regulate metabolism?
A) Insulin
B) Thyroxine (T4)
C) Cortisol
D) Adrenaline
B) Thyroxine (T4)
Explanation: Thyroxine controls the rate of metabolic processes.
Question 11
What is the primary function of the kidneys in the urinary system?
A) Production of bile
B) Filtration of blood and waste excretion
C) Regulation of heart rate
D) Synthesis of vitamin D
B) Filtration of blood and waste excretion
Explanation: Kidneys remove waste and maintain fluid balance.
Question 12
Which blood vessel carries oxygenated blood from the lungs to the heart?
A) Pulmonary Artery
B) Pulmonary Vein
C) Aorta
D) Vena Cava
B) Pulmonary Vein
Explanation: The pulmonary vein transports oxygenated blood to the left atrium.
Edition | Exam Questions with 100% Verified
Correct Answers
StraighterLine Anatomy Final Examination — Human Body Structure & Function, Cellular and
Tissue Organization, Major Organ Systems, Homeostasis, and Physiological Processes |
Expert-Verified Q&A | Exam-Ready for Academic Success
Introduction
This document contains the complete and updated verified questions and correct answers from
the StraighterLine Anatomy Final Exam for the 2025/2026 academic year. The content
encompasses key anatomical concepts, structural organization, physiological mechanisms, and
system-level functions essential for mastery in human anatomy. Each answer is accurate and
clearly explained, supporting comprehensive understanding and ensuring readiness for top
performance on the final assessment.
Answer Format
All correct answers are presented in bold and green, with concise explanations that
strengthen knowledge of anatomical terminology, physiological relationships, and the
integration of body systems.
StraighterLine Anatomy Final Exam Q&A | Verified 2025/2026 Content |
Academic-Aligned | Confidence for High Scores
Question 1
What is the smallest structural and functional unit of the human body?
A) Tissue
B) Organ
C) Cell
D) Organ System
C) Cell
Explanation: The cell is the basic building block that performs all life processes.
Question 2
Which organelle is responsible for producing energy in the form of ATP?
A) Nucleus
B) Mitochondria
C) Endoplasmic Reticulum
D) Golgi Apparatus
,B) Mitochondria
Explanation: Mitochondria are known as the powerhouse of the cell due to ATP production.
Question 3
What type of tissue is primarily responsible for contraction and movement?
A) Epithelial Tissue
B) Connective Tissue
C) Muscle Tissue
D) Nervous Tissue
C) Muscle Tissue
Explanation: Muscle tissue enables body movement through contraction.
Question 4
Which organ system is responsible for the exchange of gases between the body and the
environment?
A) Digestive System
B) Respiratory System
C) Circulatory System
D) Urinary System
B) Respiratory System
Explanation: The respiratory system facilitates oxygen intake and carbon dioxide expulsion.
Question 5
What is the primary function of the integumentary system?
A) Regulation of blood pressure
B) Protection and temperature regulation
C) Production of hormones
D) Digestion of food
B) Protection and temperature regulation
Explanation: The skin and its appendages protect against pathogens and regulate body
temperature.
Question 6
Which bone is the longest in the human body?
A) Femur
B) Humerus
C) Tibia
D) Radius
A) Femur
Explanation: The femur, or thigh bone, is the longest and strongest bone.
Question 7
What is the primary role of the skeletal system?
A) Transmission of nerve impulses
B) Support, protection, and movement
C) Production of digestive enzymes
D) Regulation of blood sugar
, B) Support, protection, and movement
Explanation: The skeleton provides structural support and protects vital organs.
Question 8
Which muscle type is under voluntary control?
A) Smooth Muscle
B) Cardiac Muscle
C) Skeletal Muscle
D) Involuntary Muscle
C) Skeletal Muscle
Explanation: Skeletal muscle is controlled consciously for movement.
Question 9
What is the main function of the nervous system?
A) Filtration of blood
B) Coordination and communication
C) Production of red blood cells
D) Digestion of nutrients
B) Coordination and communication
Explanation: The nervous system regulates body activities through electrical signals.
Question 10
Which hormone is produced by the thyroid gland to regulate metabolism?
A) Insulin
B) Thyroxine (T4)
C) Cortisol
D) Adrenaline
B) Thyroxine (T4)
Explanation: Thyroxine controls the rate of metabolic processes.
Question 11
What is the primary function of the kidneys in the urinary system?
A) Production of bile
B) Filtration of blood and waste excretion
C) Regulation of heart rate
D) Synthesis of vitamin D
B) Filtration of blood and waste excretion
Explanation: Kidneys remove waste and maintain fluid balance.
Question 12
Which blood vessel carries oxygenated blood from the lungs to the heart?
A) Pulmonary Artery
B) Pulmonary Vein
C) Aorta
D) Vena Cava
B) Pulmonary Vein
Explanation: The pulmonary vein transports oxygenated blood to the left atrium.
