BIOD152 / BIOD 152
Anatomy and Physiology 2
MODULE 1 EXAM
Actual Questions and Verified Answers
Portage Learning
Why this resource is essential:
✔ Verified Correct Answers – Accuracy guaranteed
with rationales provided
✔ Exam-Style Questions – Mirrors the actual Portage
Learning Module 1 exam
✔ Explanations Included – Strengthens learning and
exam readiness
✔ 100% Pass Guarantee – Designed for first-attempt success
✔ Instant Access – Digital download available on all devices
,### 1. The dorsal root of a nerve contains what type of neurons?
a) Motor / Efferent
b) Sensory / Afferent
c) Interneurons
d) Both motor and sensory neurons
Correct Answer: b) Sensory / Afferent
Rationale: The dorsal root contains sensory (afferent) neurons that bring
information from the periphery into the spinal cord, whereas the ventral
root contains motor (efferent) neurons that send signals from the spinal
cord to muscles.
---
### 2. This part of the autonomic system accelerates the heartbeat and
increases breathing rate.
a) Parasympathetic nervous system
b) Sympathetic nervous system
c) Somatic nervous system
d) Enteric nervous system
Correct Answer: b) Sympathetic nervous system
,Rationale: The sympathetic nervous system is responsible for the "fight or
flight" response, which includes increased heart rate and respiratory rate.
The parasympathetic system slows these functions.
### 3. Name and describe what is occurring in the neuron cell
membrane in section 2 of the diagram. Include the charge of the
membrane during this phase.
, Answer:
- Depolarization: Sodium gates open allowing sodium ions (Na⁺) to rush
into the neuron
- The membrane potential rapidly rises from the resting state (-70mV) up
past zero to approximately +40mV
- This phase initiates the action potential as the inside of the membrane
becomes positively charged compared to the outside
Rationale: Depolarization is key to the generation of an action potential;
sodium influx reverses the polarization of the membrane.
### 4. This part of a neuron conducts nerve impulses towards the cell
body.
a) Axon
b) Dendrites
c) Synaptic terminals
d) Myelin sheath
Correct Answer: b) Dendrites
Rationale: Dendrites receive electrical signals from other neurons and
conduct these impulses toward the neuron’s cell body.
Anatomy and Physiology 2
MODULE 1 EXAM
Actual Questions and Verified Answers
Portage Learning
Why this resource is essential:
✔ Verified Correct Answers – Accuracy guaranteed
with rationales provided
✔ Exam-Style Questions – Mirrors the actual Portage
Learning Module 1 exam
✔ Explanations Included – Strengthens learning and
exam readiness
✔ 100% Pass Guarantee – Designed for first-attempt success
✔ Instant Access – Digital download available on all devices
,### 1. The dorsal root of a nerve contains what type of neurons?
a) Motor / Efferent
b) Sensory / Afferent
c) Interneurons
d) Both motor and sensory neurons
Correct Answer: b) Sensory / Afferent
Rationale: The dorsal root contains sensory (afferent) neurons that bring
information from the periphery into the spinal cord, whereas the ventral
root contains motor (efferent) neurons that send signals from the spinal
cord to muscles.
---
### 2. This part of the autonomic system accelerates the heartbeat and
increases breathing rate.
a) Parasympathetic nervous system
b) Sympathetic nervous system
c) Somatic nervous system
d) Enteric nervous system
Correct Answer: b) Sympathetic nervous system
,Rationale: The sympathetic nervous system is responsible for the "fight or
flight" response, which includes increased heart rate and respiratory rate.
The parasympathetic system slows these functions.
### 3. Name and describe what is occurring in the neuron cell
membrane in section 2 of the diagram. Include the charge of the
membrane during this phase.
, Answer:
- Depolarization: Sodium gates open allowing sodium ions (Na⁺) to rush
into the neuron
- The membrane potential rapidly rises from the resting state (-70mV) up
past zero to approximately +40mV
- This phase initiates the action potential as the inside of the membrane
becomes positively charged compared to the outside
Rationale: Depolarization is key to the generation of an action potential;
sodium influx reverses the polarization of the membrane.
### 4. This part of a neuron conducts nerve impulses towards the cell
body.
a) Axon
b) Dendrites
c) Synaptic terminals
d) Myelin sheath
Correct Answer: b) Dendrites
Rationale: Dendrites receive electrical signals from other neurons and
conduct these impulses toward the neuron’s cell body.
