TEST BANK ANATOMY AND PHYSIOLOGY 4TH
EDITION EXAM QUESTIONS AND CORRECT
ANSWERS (verified answers) Q & A 2026 /INSTANT
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1. The basic structural and functional unit of the human body is the:
A. Tissue
B. Organ
C. Cell
D. System
*Correct answer: C – The cell is the smallest living unit capable of performing all
life functions.
2. Which body system is primarily responsible for transporting oxygen and
nutrients?
A. Respiratory system
B. Cardiovascular system
C. Digestive system
D. Nervous system
*Correct answer: B – The cardiovascular system circulates blood, delivering oxygen
and nutrients.
3. Homeostasis refers to:
A. Body growth
B. Maintenance of stable internal conditions
C. Digestion of food
D. Muscle contraction
,*Correct answer: B – Homeostasis maintains a stable internal environment despite
external changes.
4. The anatomical position is characterized by:
A. Sitting with arms folded
B. Standing upright, palms facing forward
C. Lying down face up
D. Standing with hands on hips
*Correct answer: B – This is the standard reference position for anatomical
description.
5. The heart is located in the:
A. Abdominal cavity
B. Thoracic cavity
C. Pelvic cavity
D. Cranial cavity
*Correct answer: B – The heart is located in the thoracic cavity within the
mediastinum.
6. Which tissue type covers body surfaces and lines cavities?
A. Muscle tissue
B. Nervous tissue
C. Epithelial tissue
D. Connective tissue
*Correct answer: C – Epithelial tissue forms protective coverings and linings.
7. The control center of the cell is the:
A. Ribosome
B. Nucleus
, C. Mitochondria
D. Lysosome
*Correct answer: B – The nucleus contains DNA and regulates cellular activities.
8. The main function of red blood cells is to:
A. Fight infection
B. Carry oxygen
C. Produce hormones
D. Digest nutrients
*Correct answer: B – Red blood cells transport oxygen via hemoglobin.
9. The organ system responsible for hormone production is the:
A. Nervous system
B. Endocrine system
C. Urinary system
D. Muscular system
*Correct answer: B – The endocrine system secretes hormones regulating body
functions.
10. The smallest structural unit of bone is the:
A. Osteon
B. Neuron
C. Chondrocyte
D. Sarcomere
*Correct answer: A – Osteons (Haversian systems) are the basic units of compact
bone.
11. The process of breaking down food mechanically occurs in the:
A. Small intestine
EDITION EXAM QUESTIONS AND CORRECT
ANSWERS (verified answers) Q & A 2026 /INSTANT
DOWNLOAD PDF
1. The basic structural and functional unit of the human body is the:
A. Tissue
B. Organ
C. Cell
D. System
*Correct answer: C – The cell is the smallest living unit capable of performing all
life functions.
2. Which body system is primarily responsible for transporting oxygen and
nutrients?
A. Respiratory system
B. Cardiovascular system
C. Digestive system
D. Nervous system
*Correct answer: B – The cardiovascular system circulates blood, delivering oxygen
and nutrients.
3. Homeostasis refers to:
A. Body growth
B. Maintenance of stable internal conditions
C. Digestion of food
D. Muscle contraction
,*Correct answer: B – Homeostasis maintains a stable internal environment despite
external changes.
4. The anatomical position is characterized by:
A. Sitting with arms folded
B. Standing upright, palms facing forward
C. Lying down face up
D. Standing with hands on hips
*Correct answer: B – This is the standard reference position for anatomical
description.
5. The heart is located in the:
A. Abdominal cavity
B. Thoracic cavity
C. Pelvic cavity
D. Cranial cavity
*Correct answer: B – The heart is located in the thoracic cavity within the
mediastinum.
6. Which tissue type covers body surfaces and lines cavities?
A. Muscle tissue
B. Nervous tissue
C. Epithelial tissue
D. Connective tissue
*Correct answer: C – Epithelial tissue forms protective coverings and linings.
7. The control center of the cell is the:
A. Ribosome
B. Nucleus
, C. Mitochondria
D. Lysosome
*Correct answer: B – The nucleus contains DNA and regulates cellular activities.
8. The main function of red blood cells is to:
A. Fight infection
B. Carry oxygen
C. Produce hormones
D. Digest nutrients
*Correct answer: B – Red blood cells transport oxygen via hemoglobin.
9. The organ system responsible for hormone production is the:
A. Nervous system
B. Endocrine system
C. Urinary system
D. Muscular system
*Correct answer: B – The endocrine system secretes hormones regulating body
functions.
10. The smallest structural unit of bone is the:
A. Osteon
B. Neuron
C. Chondrocyte
D. Sarcomere
*Correct answer: A – Osteons (Haversian systems) are the basic units of compact
bone.
11. The process of breaking down food mechanically occurs in the:
A. Small intestine
