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1. Which body system is responsible for conserving energy and body resources?
A) Sympathetic nervous system
B) Central nervous system
C) Parasympathetic nervous system
D) Endocrine system
Answer: C) Parasympathetic nervous system
Rationale: The parasympathetic nervous system promotes relaxation and conservation of
energy, slowing down heart rate and increasing digestive activity.
2. Which system responds to stress by preparing the body to defend itself?
A) Endocrine system
B) Parasympathetic nervous system
C) Sympathetic nervous system (SNS)
D) Immune system
Answer: C) Sympathetic nervous system (SNS)
Rationale: The sympathetic nervous system activates the “fight or flight” response, preparing
the body for stressful situations.
3. How is blood flow redistributed by the sympathetic nervous system (SNS)?
A) Increased blood flow to the skin
B) Blood flow to the muscles is increased while blood flow to the GI tract is decreased
C) Blood flow remains constant
D) Increased blood flow to the kidneys
Answer: B) Blood flow to the muscles is increased while blood flow to the GI tract is decreased
Rationale: During stress, SNS diverts blood away from non-essential systems (like digestion) to
muscles for immediate action.
4. How are primary brain injuries classified?
A) Acute or chronic
B) Focal or diffuse
C) Mild or severe
D) Open or closed
Answer: B) Focal or diffuse
Rationale: Primary brain injuries can be focal (specific locations) or diffuse (widespread effects)
depending on the nature of the damage.
A) Sympathetic nervous system
B) Central nervous system
C) Parasympathetic nervous system
D) Endocrine system
Answer: C) Parasympathetic nervous system
Rationale: The parasympathetic nervous system promotes relaxation and conservation of
energy, slowing down heart rate and increasing digestive activity.
2. Which system responds to stress by preparing the body to defend itself?
A) Endocrine system
B) Parasympathetic nervous system
C) Sympathetic nervous system (SNS)
D) Immune system
Answer: C) Sympathetic nervous system (SNS)
Rationale: The sympathetic nervous system activates the “fight or flight” response, preparing
the body for stressful situations.
3. How is blood flow redistributed by the sympathetic nervous system (SNS)?
A) Increased blood flow to the skin
B) Blood flow to the muscles is increased while blood flow to the GI tract is decreased
C) Blood flow remains constant
D) Increased blood flow to the kidneys
Answer: B) Blood flow to the muscles is increased while blood flow to the GI tract is decreased
Rationale: During stress, SNS diverts blood away from non-essential systems (like digestion) to
muscles for immediate action.
4. How are primary brain injuries classified?
A) Acute or chronic
B) Focal or diffuse
C) Mild or severe
D) Open or closed
Answer: B) Focal or diffuse
Rationale: Primary brain injuries can be focal (specific locations) or diffuse (widespread effects)
depending on the nature of the damage.
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