Autonomic Nervous System
- It regulates those actions which are not in our control. It controls internal activities such as breathing, blood circulation, salivation, stomach contractions and emotional reactions. These activities of autonomic nervous system are in control of different parts of brain. Autonomic nervous system has two divisions – sympathetic and parasympathetic nervous system. Although both these systems have effects opposite to each other but both these system work together to maintain balance.
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Important Points of Human Behavior :-
- “Inthis chapter, the relation of human behavior and biology is described.”
- The cell is the basic unit of human body. Many cells form tissue, many tissue to organ, many organs to organ systems are formed. These organ systems perform specific functions of our body. Nerve cell is the basic and smallest unit of nervous system. It is also called neuron.
- Nerve cells are of three types on the basis of functions: Sensory, motor and association neurons.
- Nerve cells perform the function of transmitting information in our body.
- Nervous system is of two types: Central Nervous System and Peripheral Nervous System.
- Central Nervous system consists of brain and spinal cord.
- Peripheral nervous system is divided in two parts somatic nervous system and autonomic nervous system.
Human Behavior Questions and Answers
1. Which part of nerve cell contains nucleus?
A Axon
B. Soma
C. Myelin Sheath
D. Nodes of Ranvier
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Answer :- ( B )
2. Which part of nerve cell increases the speed of nerve conduction?
A Myelin Sheath
B. Dendrites
C. Thalamus
D. Pons
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Answer :- ( A )
“3. Which part of brain controls activities like eating, drinking, sleeping, temperature regulation and sexual arousal?”
A Pons
B. Cerebellum
C. Hypothalamus
D. Thalamus
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Answer :- ( C )
4. How many pairs of cranial nerves are there in human brain?
A. 6
B. 10
C. 12
D. 31
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Answer :- ( C )