LIFE SCIENCES Grade12 P1 2023 May/June SECTION A 1.4
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Question 1 of 8
1. Question
1.4 The flow diagram below represents the components of the nervous system.
1.4.1 Identify the component of the nervous system represented by:
(a) A
CorrectIncorrectHint
It is divided into three separate subsystems, the somatic, autonomic, and enteric nervous systems.
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Question 2 of 8
2. Question
1.4 The flow diagram below represents the components of the nervous system.
1.4.1 Identify the component of the nervous system represented by:
(b) D
CorrectIncorrectHint
include control of respiration, cardiac regulation (the cardiac control center), vasomotor activity (the vasomotor center), and certain reflex actions such as coughing, sneezing, swallowing and vomiting.
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Question 3 of 8
3. Question
1.4 The flow diagram below represents the components of the nervous system.
1.4.2 Name the type of nerves found at C
CorrectIncorrectHint
are mixed nerves that interact directly with the spinal cord to modulate motor and sensory information from the body’s periphery. Each nerve forms from nerve fibers, known as fila radicularia, extending from the posterior (dorsal) and anterior (ventral) roots of the spinal cord
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Question 4 of 8
4. Question
1.4 The flow diagram below represents the components of the nervous system.
1.4.3 (a) Give the LETTER of the component that slows down
the heart rate when an emergency situation has passed.CorrectIncorrect -
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Question 5 of 8
5. Question
1.4 The flow diagram below represents the components of the nervous system.
1.4.3 (b) Give the name of the component in the letter E that slows down
the heart rate when an emergency situation has passed.CorrectIncorrect -
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Question 6 of 8
6. Question
1.4.4 Name the nerve cells that make up nervous tissue.
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Question 7 of 8
7. Question
1.4.5. (a) State TWO ways in which the brain is protected. State the first here and the second answer in (b) after this.
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Question 8 of 8
8. Question
1.4.5. (b) State The second way in which the brain is protected.
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