2. The nervous system is a complex network of nerves and cells that carry messages to and from the brain and spinal cord to various parts of the body. It is also known as the coordinator of all systems in human body. (a) Describe the primary functions of the nervous system in human body. (b) Explain the main divisions of peripheral nervous system (PNS).
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Adi S.
'Match the concept with the correct section of the nervous system: Central nervous system Consists of the brain and spinal cord Responsible for sending sensory messages to the CNS and sending motor messages to muscles and glands Autonomic nervous system Parasympathetic nervous system 3. Responsible for voluntary control: sense receptors send messages to the CNS and impulses travel from the CNS to effectors (muscles) Peripheral nervous system Sympathetic nervous system Responsible for involuntary control: controls glandular secretions (enzymes and hormones) and the function of smooth and cardiac muscles Somatic nervous system 5. Activated in emergencies and in times of stress 6. Activated when the body is calm, at rest and digesting a meal'
Lainey R.
What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS)? A.The CNS involves the brain and spinal cord, and the PNS involves the body nerves. B.The CNS involves the body nerves, and the PNS involves the brain and spinal cord. C.The CNS involves sensory neurons, and the PNS involves motor neurons. D.The CNS involves motor neurons, and the PNS involves sensory neurons.
Sri K.
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