Portage Learning BIOD 152 A&P 2 Final Exam
Portage Learning BIOD 152 A&P 2 Final Exam
Practice Questions with Answers & Rationales | 2026/2027
Exam Instructions
This practice examination is designed to simulate the format and content of the
Portage Learning BIOD 152 Final Exam. The exam covers material from the entire
course, including the nervous, cardiovascular, sensory, and reproductive systems.
Number of Questions: 40
Time Allowed: 90 minutes
Format: Multiple choice, multiple select, figure identification, and short answer
Answer Key & Rationales: Provided after each question
SECTION 1: NERVOUS SYSTEM
1. The neuron pictured below is best described as:
A) Bipolar
B) Multipolar
C) Unipolar
D) Pseudounipolar
Answer: A. Bipolar
, Rationale: Bipolar neurons have two processes: one dendrite and one axon. They
are often found in sensory pathways such as the retina and olfactory mucosa .
2. Name and describe what is occurring in the neuron cell membrane during
depolarization. Include the charge of the membrane during this phase.
Answer: Depolarization occurs when the sodium gates open and sodium rushes
into the axon. The voltage travels past zero and then up to +40mV. The inside of
the membrane becomes positively charged compared to the outside .
3. Which of the following is most likely a symptom of ALS?
A) Impaired ability to swallow
B) Decreased sensation in the hands
C) Shrinkage of cerebral cortex
D) Increased size of brain ventricles
E) All of the above
Answer: A. Impaired ability to swallow
Rationale: ALS (Amyotrophic Lateral Sclerosis) primarily affects motor neurons,
leading to muscle weakness and impaired swallowing .
4. What is the purpose of the blood-brain barrier? Describe its maintenance
from a cellular level.
Answer: The blood-brain barrier is a diffusion barrier which prevents most
particles from entering the central nervous system tissue, keeping the brain and
spinal cord separate from general blood circulation. The blood-brain barrier is
formed by the relatively impermeable brain capillaries, due to the glial cell's
astrocytes. Maintenance of the blood-brain barrier is important to provide a
stable chemical environment for the nervous system .
Portage Learning BIOD 152 A&P 2 Final Exam
Practice Questions with Answers & Rationales | 2026/2027
Exam Instructions
This practice examination is designed to simulate the format and content of the
Portage Learning BIOD 152 Final Exam. The exam covers material from the entire
course, including the nervous, cardiovascular, sensory, and reproductive systems.
Number of Questions: 40
Time Allowed: 90 minutes
Format: Multiple choice, multiple select, figure identification, and short answer
Answer Key & Rationales: Provided after each question
SECTION 1: NERVOUS SYSTEM
1. The neuron pictured below is best described as:
A) Bipolar
B) Multipolar
C) Unipolar
D) Pseudounipolar
Answer: A. Bipolar
, Rationale: Bipolar neurons have two processes: one dendrite and one axon. They
are often found in sensory pathways such as the retina and olfactory mucosa .
2. Name and describe what is occurring in the neuron cell membrane during
depolarization. Include the charge of the membrane during this phase.
Answer: Depolarization occurs when the sodium gates open and sodium rushes
into the axon. The voltage travels past zero and then up to +40mV. The inside of
the membrane becomes positively charged compared to the outside .
3. Which of the following is most likely a symptom of ALS?
A) Impaired ability to swallow
B) Decreased sensation in the hands
C) Shrinkage of cerebral cortex
D) Increased size of brain ventricles
E) All of the above
Answer: A. Impaired ability to swallow
Rationale: ALS (Amyotrophic Lateral Sclerosis) primarily affects motor neurons,
leading to muscle weakness and impaired swallowing .
4. What is the purpose of the blood-brain barrier? Describe its maintenance
from a cellular level.
Answer: The blood-brain barrier is a diffusion barrier which prevents most
particles from entering the central nervous system tissue, keeping the brain and
spinal cord separate from general blood circulation. The blood-brain barrier is
formed by the relatively impermeable brain capillaries, due to the glial cell's
astrocytes. Maintenance of the blood-brain barrier is important to provide a
stable chemical environment for the nervous system .
