WGU D313 Anatomy & Physiology OA Exam Newest
2025/2026 With Complete 100 Questions And
Correct Answers |Already Graded A+||Brand New
Version!|
1. Which organ system provides structural support, protects internal organs, stores
minerals like calcium, produces blood cells, and works together with muscles to enable
movement of the entire human body?
A. Respiratory system
B. Skeletal system
C. Endocrine system
D. Nervous system
Answer: B. Skeletal system
2. Which organ system provides structural support, protects internal organs, stores
minerals like calcium, produces blood cells, and works together with muscles to enable
movement of the entire human body?
A. Respiratory system
B. Skeletal system
C. Endocrine system
D. Nervous system
Answer: B. Skeletal system
3. Which cellular organelle functions as the site of energy production through aerobic
respiration, using oxygen to generate ATP that powers multiple essential cellular
metabolic processes?
A. Nucleus
1|Page
, B. Ribosome
C. Mitochondrion
D. Golgi apparatus
Answer: C. Mitochondrion
4. In the cardiovascular system, which chamber of the heart pumps deoxygenated blood
into the pulmonary circulation through the pulmonary artery to the lungs for
oxygenation?
A. Left atrium
B. Right ventricle
C. Left ventricle
D. Right atrium
Answer: B. Right ventricle
5. Which type of muscle tissue is involuntary, striated, found exclusively in the heart, and
responsible for generating rhythmic contractions to continuously pump blood
throughout the circulatory system?
A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Connective muscle
Answer: B. Cardiac muscle
6. Which anatomical plane divides the body into superior and inferior sections, often used
in imaging studies such as CT or MRI scans for axial perspectives?
A. Frontal plane
B. Sagittal plane
C. Transverse plane
D. Coronal plane
Answer: C. Transverse plane
2|Page
, 7. What is the main functional unit of the kidney, responsible for filtration of blood,
reabsorption of essential molecules, and excretion of waste products as urine?
A. Alveolus
B. Nephron
C. Villus
D. Glomerulus
Answer: B. Nephron
8. Which part of the neuron is specialized for receiving incoming signals from other
neurons and transmitting them toward the cell body for integration?
A. Axon
B. Soma
C. Dendrite
D. Synapse
Answer: C. Dendrite
9. Which type of epithelial tissue forms the lining of the urinary bladder, allowing
stretching and recoiling without damage to accommodate fluctuating volumes of urine?
A. Simple squamous
B. Transitional epithelium
C. Stratified cuboidal
D. Pseudostratified columnar
Answer: B. Transitional epithelium
10. Which blood component primarily functions in oxygen transport, using hemoglobin
molecules to carry oxygen from the lungs to tissues and return carbon dioxide for
exhalation?
A. Leukocytes
B. Platelets
C. Plasma
3|Page
2025/2026 With Complete 100 Questions And
Correct Answers |Already Graded A+||Brand New
Version!|
1. Which organ system provides structural support, protects internal organs, stores
minerals like calcium, produces blood cells, and works together with muscles to enable
movement of the entire human body?
A. Respiratory system
B. Skeletal system
C. Endocrine system
D. Nervous system
Answer: B. Skeletal system
2. Which organ system provides structural support, protects internal organs, stores
minerals like calcium, produces blood cells, and works together with muscles to enable
movement of the entire human body?
A. Respiratory system
B. Skeletal system
C. Endocrine system
D. Nervous system
Answer: B. Skeletal system
3. Which cellular organelle functions as the site of energy production through aerobic
respiration, using oxygen to generate ATP that powers multiple essential cellular
metabolic processes?
A. Nucleus
1|Page
, B. Ribosome
C. Mitochondrion
D. Golgi apparatus
Answer: C. Mitochondrion
4. In the cardiovascular system, which chamber of the heart pumps deoxygenated blood
into the pulmonary circulation through the pulmonary artery to the lungs for
oxygenation?
A. Left atrium
B. Right ventricle
C. Left ventricle
D. Right atrium
Answer: B. Right ventricle
5. Which type of muscle tissue is involuntary, striated, found exclusively in the heart, and
responsible for generating rhythmic contractions to continuously pump blood
throughout the circulatory system?
A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Connective muscle
Answer: B. Cardiac muscle
6. Which anatomical plane divides the body into superior and inferior sections, often used
in imaging studies such as CT or MRI scans for axial perspectives?
A. Frontal plane
B. Sagittal plane
C. Transverse plane
D. Coronal plane
Answer: C. Transverse plane
2|Page
, 7. What is the main functional unit of the kidney, responsible for filtration of blood,
reabsorption of essential molecules, and excretion of waste products as urine?
A. Alveolus
B. Nephron
C. Villus
D. Glomerulus
Answer: B. Nephron
8. Which part of the neuron is specialized for receiving incoming signals from other
neurons and transmitting them toward the cell body for integration?
A. Axon
B. Soma
C. Dendrite
D. Synapse
Answer: C. Dendrite
9. Which type of epithelial tissue forms the lining of the urinary bladder, allowing
stretching and recoiling without damage to accommodate fluctuating volumes of urine?
A. Simple squamous
B. Transitional epithelium
C. Stratified cuboidal
D. Pseudostratified columnar
Answer: B. Transitional epithelium
10. Which blood component primarily functions in oxygen transport, using hemoglobin
molecules to carry oxygen from the lungs to tissues and return carbon dioxide for
exhalation?
A. Leukocytes
B. Platelets
C. Plasma
3|Page
