Page 1 of 68
AMEDD CCC - ABS EXAMINATION 2026
COMPLETE (180) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES.
AMEDD
Prepare for the AMEDD CCC – ABS Examination with practice questions
covering anatomy, physiology, pathology, pharmacology, clinical
medicine, and military medical topics relevant to the Army Medical
Department Captains Career Course – Applied Basic Sciences. Designed
to improve decision-making skills and boost confidence in military
medical leadership and operational responsibilities. Suitable for Army
medical personnel, healthcare officers, and candidates preparing for
AMEDD professional military education exams.
MULTIPLE CHOICE.
Section 1: Normal Structure and Function (Anatomy &
Physiology – 25%)
1. Which bone articulates with the acetabulum to form the hip joint?
A. Tibia
B. Fibula
C. Femur
D. Patella
Answer: C. Femur
Rationale: The head of the femur articulates with the
acetabulum of the os coxae to form the coxofemoral (hip) joint.
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This ball-and-socket joint allows for a wide range of movement in
the hind limb.
2. Which chamber of the heart pumps oxygenated blood into the
systemic circulation?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Answer: D. Left ventricle
Rationale: The left ventricle contracts to push oxygenated blood
through the aortic valve into the aorta, which distributes it to the
entire body (systemic circulation).
3. Which cranial nerve is responsible for the sense of smell?
A. Optic (CN II)
B. Oculomotor (CN III)
C. Olfactory (CN I)
D. Trigeminal (CN V)
Answer: C. Olfactory (CN I)
Rationale: The olfactory nerve (CN I) is a sensory nerve that
transmits odor information from the nasal epithelium to the
olfactory bulb.
4. Where is the sinoatrial (SA) node located?
A. Interventricular septum
B. Wall of the right atrium
C. Left ventricular apex
D. Aortic arch
Answer: B. Wall of the right atrium
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Rationale: The SA node is located in the upper wall of the right
atrium near the opening of the superior vena cava and serves as
the natural pacemaker of the heart.
5. Which hormone is secreted by the beta cells of the pancreatic
islets?
A. Glucagon
B. Insulin
C. Somatostatin
D. Pancreatic polypeptide
Answer: B. Insulin
Rationale: Beta cells produce insulin, which lowers blood
glucose by promoting cellular uptake and storage of glucose.
Alpha cells produce glucagon.
6. The functional unit of the kidney is the:
A. Nephron
B. Glomerulus
C. Renal corpuscle
D. Collecting duct
Answer: A. Nephron
Rationale: Each kidney contains about 1 million nephrons, each
responsible for filtering blood, reabsorbing nutrients, and
forming urine.
7. Which muscle is the primary agonist for elbow flexion?
A. Triceps brachii
B. Deltoid
C. Biceps brachii
D. Brachioradialis
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Answer: C. Biceps brachii
Rationale: The biceps brachii is the major flexor of the forearm at
the elbow joint, especially when the forearm is supinated.
8. Which lobe of the brain is primarily responsible for processing
auditory information?
A. Frontal lobe
B. Parietal lobe
C. Temporal lobe
D. Occipital lobe
Answer: C. Temporal lobe
Rationale: The primary auditory cortex is located in the superior
temporal gyrus within the temporal lobe.
9. Oxygen is primarily transported in the blood by:
A. Plasma albumin
B. Leukocytes
C. Hemoglobin in erythrocytes
D. Free dissolved O2
Answer: C. Hemoglobin in erythrocytes
Rationale: Approximately 98–99% of oxygen is bound to
hemoglobin within red blood cells; only a small fraction is
dissolved in plasma.
10. Which valve prevents backflow of blood from the left ventricle
into the left atrium?
A. Tricuspid valve
B. Pulmonary valve
C. Aortic valve
D. Mitral (bicuspid) valve
AMEDD CCC - ABS EXAMINATION 2026
COMPLETE (180) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES.
AMEDD
Prepare for the AMEDD CCC – ABS Examination with practice questions
covering anatomy, physiology, pathology, pharmacology, clinical
medicine, and military medical topics relevant to the Army Medical
Department Captains Career Course – Applied Basic Sciences. Designed
to improve decision-making skills and boost confidence in military
medical leadership and operational responsibilities. Suitable for Army
medical personnel, healthcare officers, and candidates preparing for
AMEDD professional military education exams.
MULTIPLE CHOICE.
Section 1: Normal Structure and Function (Anatomy &
Physiology – 25%)
1. Which bone articulates with the acetabulum to form the hip joint?
A. Tibia
B. Fibula
C. Femur
D. Patella
Answer: C. Femur
Rationale: The head of the femur articulates with the
acetabulum of the os coxae to form the coxofemoral (hip) joint.
, Page 2 of 68
This ball-and-socket joint allows for a wide range of movement in
the hind limb.
2. Which chamber of the heart pumps oxygenated blood into the
systemic circulation?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Answer: D. Left ventricle
Rationale: The left ventricle contracts to push oxygenated blood
through the aortic valve into the aorta, which distributes it to the
entire body (systemic circulation).
3. Which cranial nerve is responsible for the sense of smell?
A. Optic (CN II)
B. Oculomotor (CN III)
C. Olfactory (CN I)
D. Trigeminal (CN V)
Answer: C. Olfactory (CN I)
Rationale: The olfactory nerve (CN I) is a sensory nerve that
transmits odor information from the nasal epithelium to the
olfactory bulb.
4. Where is the sinoatrial (SA) node located?
A. Interventricular septum
B. Wall of the right atrium
C. Left ventricular apex
D. Aortic arch
Answer: B. Wall of the right atrium
, Page 3 of 68
Rationale: The SA node is located in the upper wall of the right
atrium near the opening of the superior vena cava and serves as
the natural pacemaker of the heart.
5. Which hormone is secreted by the beta cells of the pancreatic
islets?
A. Glucagon
B. Insulin
C. Somatostatin
D. Pancreatic polypeptide
Answer: B. Insulin
Rationale: Beta cells produce insulin, which lowers blood
glucose by promoting cellular uptake and storage of glucose.
Alpha cells produce glucagon.
6. The functional unit of the kidney is the:
A. Nephron
B. Glomerulus
C. Renal corpuscle
D. Collecting duct
Answer: A. Nephron
Rationale: Each kidney contains about 1 million nephrons, each
responsible for filtering blood, reabsorbing nutrients, and
forming urine.
7. Which muscle is the primary agonist for elbow flexion?
A. Triceps brachii
B. Deltoid
C. Biceps brachii
D. Brachioradialis
, Page 4 of 68
Answer: C. Biceps brachii
Rationale: The biceps brachii is the major flexor of the forearm at
the elbow joint, especially when the forearm is supinated.
8. Which lobe of the brain is primarily responsible for processing
auditory information?
A. Frontal lobe
B. Parietal lobe
C. Temporal lobe
D. Occipital lobe
Answer: C. Temporal lobe
Rationale: The primary auditory cortex is located in the superior
temporal gyrus within the temporal lobe.
9. Oxygen is primarily transported in the blood by:
A. Plasma albumin
B. Leukocytes
C. Hemoglobin in erythrocytes
D. Free dissolved O2
Answer: C. Hemoglobin in erythrocytes
Rationale: Approximately 98–99% of oxygen is bound to
hemoglobin within red blood cells; only a small fraction is
dissolved in plasma.
10. Which valve prevents backflow of blood from the left ventricle
into the left atrium?
A. Tricuspid valve
B. Pulmonary valve
C. Aortic valve
D. Mitral (bicuspid) valve
