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2025 WGU D313 Objective Assessment for Anatomy and Physiology | Accurate Questions and Answers (westernGU) $17.99
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2025 WGU D313 Objective Assessment for Anatomy and Physiology | Accurate Questions and Answers (westernGU)

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2025 WGU D313 Objective Assessment for Anatomy and Physiology | Accurate Questions and Answers (westernGU)

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  • June 3, 2024
  • December 19, 2024
  • 26
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • 2024 wgu d313 objective assessment for anatomy and

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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. Question:
Which of the following is the primary function of the kidneys?
A. Produce red blood cells
B. Regulate blood pressure
C. Filter waste products from the blood
D. Store urine
Answer: C. Filter waste products from the blood
Rationale: The kidneys' primary function is to filter waste products and
excess substances from the blood, which are then excreted as urine.
While kidneys also help regulate blood pressure and electrolytes, their
most crucial role is filtration of waste.


2. Question:
What is the name of the structure that connects the throat (pharynx) to
the stomach?
A. Esophagus
B. Trachea
C. Bronchi
D. Duodenum
Answer: A. Esophagus

,Rationale: The esophagus is the muscular tube that connects the
pharynx (throat) to the stomach. The trachea carries air to the lungs,
the bronchi are branches of the trachea that enter the lungs, and the
duodenum is the first part of the small intestine.


3. Question:
Which of the following hormones is produced by the pancreas to help
regulate blood glucose levels?
A. Insulin
B. Estrogen
C. Cortisol
D. Progesterone
Answer: A. Insulin
Rationale: The pancreas produces insulin, which helps regulate blood
glucose levels by promoting the uptake of glucose into cells. Estrogen
and progesterone are reproductive hormones, and cortisol is a stress
hormone produced by the adrenal glands.


4. Question:
What type of joint allows for the most movement?
A. Hinge joint
B. Ball-and-socket joint
C. Pivot joint
D. Saddle joint
Answer: B. Ball-and-socket joint

,Rationale: Ball-and-socket joints, like the hip and shoulder joints, allow
for a wide range of motion in multiple directions. Hinge joints allow
motion in only one direction (e.g., knee), pivot joints allow rotational
movement (e.g., neck), and saddle joints allow for limited motion (e.g.,
thumb).


5. Question:
Which of the following is the main component of the body's immune
response?
A. Neurons
B. Erythrocytes
C. Leukocytes
D. Platelets
Answer: C. Leukocytes
Rationale: Leukocytes (white blood cells) are the primary components
of the immune system, involved in defending the body against
pathogens. Erythrocytes are red blood cells that transport oxygen, and
platelets assist in blood clotting.


6. Question:
Which structure in the eye is responsible for focusing light onto the
retina?
A. Cornea
B. Iris
C. Lens
D. Retina

, Answer: C. Lens
Rationale: The lens focuses light onto the retina, where visual
information is processed. The cornea also helps focus light but is not
the main structure for focusing. The iris controls the amount of light
entering the eye by adjusting the pupil size.


7. Question:
The sympathetic nervous system is responsible for which of the
following?
A. Stimulating digestion
B. Increasing heart rate
C. Stimulating urination
D. Decreasing blood pressure
Answer: B. Increasing heart rate
Rationale: The sympathetic nervous system is part of the autonomic
nervous system and prepares the body for "fight or flight" responses,
which includes increasing heart rate. It also inhibits digestion and
urination and may increase blood pressure.


8. Question:
Which blood vessel carries oxygenated blood from the lungs to the
heart?
A. Pulmonary artery
B. Aorta
C. Pulmonary vein
D. Vena cava

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