Purdue BIOL 203 Exam 1 Study Guide & Practice Questions
(Newest 2026/2027 Version) — Graded A+
Dominate your first major anatomy midterm with this hyper-targeted study pack for Purdue's
BIOL 203 Exam 1. This document is directly optimized for the 2026 curriculum requirements. It
features comprehensive practice questions matching the precise difficulty level of the actual
test. Clear highlighted correct choices and student-friendly Rationales guide your learning. It
features immediate mastery of anatomical planes, homeostatic feedback loops, cell organelles,
fluid-mosaic models, and membrane potentials. Secure your A+ now!
,Part 1: Anatomical Terminology & Body Organization
1. A patient reports sharp pain in the right hypochondriac region. Which organ is most
likely located in this area?
• The liver
• The appendix
• The spleen
• The urinary bladder
Rationale: The right hypochondriac region is located in the upper right section of the
abdominopelvic cavity, directly beneath the diaphragm, housing the right lobe of the
liver and the gallbladder.
2. A surgeon makes an incision that divides the body into unequal left and right portions.
Which anatomical plane was used?
• Midsagittal plane
• Parasagittal plane
• Frontal plane
• Transverse plane
Rationale: A sagittal plane divides the body into right and left pieces. If it is exactly in
the middle, it is midsagittal. If it creates unequal left and right sections, it is
parasagittal.
3. When a patient is lying on their back facing upward, what anatomical position are they
in?
• Prone
• Lateral recumbent
• Supine
• Anatomical position
Rationale: Lying face up is the supine position, whereas lying face down is the prone
position.
4. The olecranal region is located on which surface of the upper extremity?
• Anterior
, • Posterior
• Medial
• Lateral
Rationale: The olecranal region refers to the posterior aspect of the elbow (the bony
tip), while the anterior surface is the cubital or antecubital region.
5. Which directional term correctly describes the position of the patellar region relative to
the coxal region?
• Proximal
• Distal
• Superior
• Medial
Rationale: The patellar region (knee) is further down the lower extremity away from
the point of attachment at the hip (coxal region), making it distal.
6. A traumatic accident causes tearing of the serous membrane that lines the thoracic wall.
What specific structure has been damaged?
• Visceral pleura
• Parietal pleura
• Visceral pericardium
• Parietal peritoneum
Rationale: The pleura lines the thoracic/lung cavity. Because it lines the wall of the
cavity rather than the surface of the lung itself, it is the parietal layer.
7. Which of the following organs is located within the retroperitoneal space?
• Stomach
• Liver
• Kidney
• Spleen
Rationale: The kidneys, adrenal glands, and parts of the pancreas lie behind the
parietal peritoneum against the posterior abdominal wall, making them
retroperitoneal.
(Newest 2026/2027 Version) — Graded A+
Dominate your first major anatomy midterm with this hyper-targeted study pack for Purdue's
BIOL 203 Exam 1. This document is directly optimized for the 2026 curriculum requirements. It
features comprehensive practice questions matching the precise difficulty level of the actual
test. Clear highlighted correct choices and student-friendly Rationales guide your learning. It
features immediate mastery of anatomical planes, homeostatic feedback loops, cell organelles,
fluid-mosaic models, and membrane potentials. Secure your A+ now!
,Part 1: Anatomical Terminology & Body Organization
1. A patient reports sharp pain in the right hypochondriac region. Which organ is most
likely located in this area?
• The liver
• The appendix
• The spleen
• The urinary bladder
Rationale: The right hypochondriac region is located in the upper right section of the
abdominopelvic cavity, directly beneath the diaphragm, housing the right lobe of the
liver and the gallbladder.
2. A surgeon makes an incision that divides the body into unequal left and right portions.
Which anatomical plane was used?
• Midsagittal plane
• Parasagittal plane
• Frontal plane
• Transverse plane
Rationale: A sagittal plane divides the body into right and left pieces. If it is exactly in
the middle, it is midsagittal. If it creates unequal left and right sections, it is
parasagittal.
3. When a patient is lying on their back facing upward, what anatomical position are they
in?
• Prone
• Lateral recumbent
• Supine
• Anatomical position
Rationale: Lying face up is the supine position, whereas lying face down is the prone
position.
4. The olecranal region is located on which surface of the upper extremity?
• Anterior
, • Posterior
• Medial
• Lateral
Rationale: The olecranal region refers to the posterior aspect of the elbow (the bony
tip), while the anterior surface is the cubital or antecubital region.
5. Which directional term correctly describes the position of the patellar region relative to
the coxal region?
• Proximal
• Distal
• Superior
• Medial
Rationale: The patellar region (knee) is further down the lower extremity away from
the point of attachment at the hip (coxal region), making it distal.
6. A traumatic accident causes tearing of the serous membrane that lines the thoracic wall.
What specific structure has been damaged?
• Visceral pleura
• Parietal pleura
• Visceral pericardium
• Parietal peritoneum
Rationale: The pleura lines the thoracic/lung cavity. Because it lines the wall of the
cavity rather than the surface of the lung itself, it is the parietal layer.
7. Which of the following organs is located within the retroperitoneal space?
• Stomach
• Liver
• Kidney
• Spleen
Rationale: The kidneys, adrenal glands, and parts of the pancreas lie behind the
parietal peritoneum against the posterior abdominal wall, making them
retroperitoneal.
