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Which row in the table identifies components of the central and peripheral nervous systems? | Central nervous system | Peripheral nervous system | |-----------------------|-------------------------| | A | spinal cord | brain | somatic | medulla | | B | brain | spinal cord | sympathetic | somatic | | C | parasympathetic | brain | spinal cord | sympathetic | | D | sympathetic | parasympathetic | brain | spinal cord | - Scottish Highers Human Biology - Question 18 - 2019
Question 18
Which row in the table identifies components of the central and peripheral nervous systems? | Central nervous system | Peripheral nervous system | |----------------... show full transcript
Worked Solution & Example Answer:Which row in the table identifies components of the central and peripheral nervous systems? | Central nervous system | Peripheral nervous system | |-----------------------|-------------------------| | A | spinal cord | brain | somatic | medulla | | B | brain | spinal cord | sympathetic | somatic | | C | parasympathetic | brain | spinal cord | sympathetic | | D | sympathetic | parasympathetic | brain | spinal cord | - Scottish Highers Human Biology - Question 18 - 2019
Step 1
Which row identifies components of the central and peripheral nervous systems?
Answer
To find the correct row that identifies the components of the central and peripheral nervous systems, we need to understand what constitutes each system.
The Central Nervous System (CNS) consists of:
- Brain
- Spinal Cord
The Peripheral Nervous System (PNS) includes:
- Somatic Nervous System
- Autonomic Nervous System (which has sympathetic and parasympathetic components)
Now, reviewing the options:
- Option A: spinal cord - correct for CNS; brain, somatic - incorrect for PNS (should not include medulla here as a label in PNS).
- Option B: brain - correct for CNS; spinal cord - incorrect for PNS label.
- Option C: parasympathetic - incorrect for CNS; brain is fine here but requires a spinal cord label for CNS.
- Option D: sympathetic - also incorrect for CNS; parasympathetic is a PNS component, but a mix-up occurs here.
The correct identification is in Option B, as it specifies 'brain' for CNS and proposes 'sympathetic' for the PNS, closely aligning with the definitions.