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WGU D313 Anatomy and Physiology 2024 | Verified Exam Questions with Detailed Explanations (westernGU) $17.99
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WGU D313 Anatomy and Physiology 2024 | Verified Exam Questions with Detailed Explanations (westernGU)

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WGU D313 Anatomy and Physiology 2024 | Verified Exam Questions with Detailed Explanations (westernGU)

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  • June 3, 2024
  • December 19, 2024
  • 22
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • wgu d313 anatomy and physiology 2025 verified ex

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  • Human anatomy and physiology
  • Human anatomy and physiology

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WGU D313 Anatomy and Physiology Objective Assessment 2025 | Up-
to-Date Exam Questions with Detailed Answers


1. Which of the following structures is responsible for the production
of cerebrospinal fluid (CSF)?
A) Cerebellum
B) Medulla Oblongata
C) Choroid Plexus
D) Corpus Callosum
Answer: C) Choroid Plexus
Rationale: The choroid plexus is located in the ventricles of the brain
and is responsible for producing cerebrospinal fluid (CSF). CSF circulates
through the ventricles, providing cushioning for the brain and spinal
cord.


2. What is the primary function of hemoglobin in red blood cells?
A) Transport of oxygen
B) Production of white blood cells
C) Regulation of blood pressure
D) Digestion of nutrients
Answer: A) Transport of oxygen
Rationale: Hemoglobin is a protein found in red blood cells that binds
to oxygen in the lungs and carries it through the bloodstream to tissues
and organs.

,3. Which structure of the nephron is responsible for filtering blood to
form filtrate?
A) Glomerulus
B) Loop of Henle
C) Distal convoluted tubule
D) Proximal convoluted tubule
Answer: A) Glomerulus
Rationale: The glomerulus is a network of capillaries where blood
filtration occurs, allowing waste products and excess fluids to be filtered
from the blood and form filtrate.


4. Which layer of the skin contains blood vessels, hair follicles, and
sweat glands?
A) Epidermis
B) Dermis
C) Hypodermis
D) Stratum corneum
Answer: B) Dermis
Rationale: The dermis is the layer beneath the epidermis that contains
blood vessels, hair follicles, sweat glands, and connective tissue. It is
responsible for providing nutrients to the epidermis and maintaining
skin integrity.


5. The primary function of the parathyroid glands is to regulate:
A) Blood pressure
B) Calcium levels in the blood

,C) Metabolism
D) Blood glucose levels
Answer: B) Calcium levels in the blood
Rationale: The parathyroid glands secrete parathyroid hormone (PTH),
which regulates calcium levels in the blood by promoting calcium
release from bones and increasing calcium absorption in the kidneys
and intestines.


6. Which of the following is the main function of the small intestine?
A) Absorption of water
B) Production of bile
C) Absorption of nutrients
D) Storage of bile
Answer: C) Absorption of nutrients
Rationale: The small intestine is primarily responsible for the
absorption of nutrients from digested food. It contains villi, which
increase the surface area for nutrient absorption.


7. Which part of the brain is responsible for regulating vital functions
such as heart rate and respiration?
A) Cerebellum
B) Medulla Oblongata
C) Thalamus
D) Hippocampus
Answer: B) Medulla Oblongata

, Rationale: The medulla oblongata is part of the brainstem and is crucial
for regulating autonomic functions such as heart rate, breathing, and
blood pressure.


8. Which of the following is an example of an involuntary muscle
contraction?
A) Biceps contraction
B) Heartbeat
C) Flexion of the forearm
D) Contraction of the quadriceps
Answer: B) Heartbeat
Rationale: The heartbeat is controlled by the cardiac muscle, which
contracts involuntarily. It is regulated by the autonomic nervous system
and is not consciously controlled.


9. Which of the following organs is primarily responsible for
detoxifying harmful substances in the body?
A) Stomach
B) Liver
C) Kidneys
D) Lungs
Answer: B) Liver
Rationale: The liver is responsible for detoxifying harmful substances in
the body, including drugs, alcohol, and metabolic waste products. It also
plays a key role in bile production and metabolism.

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