Neutral control and coordination
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1
What is neural control and coordination?
Neural control and coordination is the regulation of body activities by the nervous system.
2
What are the two systems involved in coordination?
Nervous system and endocrine system are involved in coordination.
3
What is a neuron?
Neuron is the structural and functional unit of nervous system.
4
What are the parts of a neuron?
Cell body, dendrites and axon are the parts of a neuron.
5
What is the function of dendrites?
Dendrites receive nerve impulses.
6
What is the function of axon?
Axon transmits nerve impulses away from the cell body.
7
What is a nerve impulse?
Nerve impulse is an electrical signal transmitted along a neuron.
8
What is resting potential?
Resting potential is the potential difference across the membrane of a resting neuron.
9
What is action potential?
Action potential is the electrical change that occurs during transmission of nerve impulse.
10
What is synapse?
Synapse is the junction between two neurons.
11
What are neurotransmitters?
Neurotransmitters are chemical substances that transmit impulses across synapse.
12
Name a common neurotransmitter
Acetylcholine is a common neurotransmitter.
13
What is the human nervous system divided into?
Central nervous system, peripheral nervous system and autonomic nervous system.
14
What does the central nervous system include?
Brain and spinal cord form the central nervous system.
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What does the peripheral nervous system consist of?
Cranial nerves and spinal nerves form the peripheral nervous system.
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What is autonomic nervous system?
Autonomic nervous system controls involuntary actions.
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What are the divisions of autonomic nervous system?
Sympathetic and parasympathetic nervous systems.
18
What is the function of sympathetic nervous system?
It prepares the body for stressful situations.
19
What is the function of parasympathetic nervous system?
It helps in relaxation and conservation of energy.
20
What is reflex action?
Reflex action is a quick, automatic response to a stimulus.
21
What is reflex arc?
Reflex arc is the pathway followed by a nerve impulse during reflex action.
22
Name the components of reflex arc
Receptor, sensory neuron, interneuron, motor neuron and effector.
23
What is brain?
Brain is the main coordinating centre of the body.
24
What are the three major parts of brain?
Forebrain, midbrain and hindbrain.
25
What is the function of cerebrum?
Cerebrum controls voluntary actions and intelligence.
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What is the function of thalamus?
Thalamus relays sensory impulses.
27
What is the function of hypothalamus?
Hypothalamus maintains homeostasis and links nervous and endocrine systems.
28
What is the function of cerebellum?
Cerebellum coordinates muscular movements and maintains posture.
29
What is the function of pons?
Pons regulates respiration.
30
What is the function of medulla oblongata?
Medulla controls involuntary actions like heartbeat and breathing.
31
What is spinal cord?
Spinal cord conducts impulses to and from brain and controls reflexes.
32
What is an endocrine gland?
Endocrine gland is a ductless gland that secretes hormones.
33
What are hormones?
Hormones are chemical messengers that regulate physiological processes.
34
What is neuroendocrine coordination?
Neuroendocrine coordination is interaction between nervous and hormonal control.
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