Integumentary system 
Muscular System 
Skeletal System 
Reproductive System 
Cardiovascular system 
Embedded system 
Genetics 
Endocrine system 
Respiratory system 
Urinary system 
জীবদেহের গঠন 
কোশের আকৃতি 
মানুষের দেহের কোশের আকৃতি 
বিভিন্ন শারীরবৃত্তীয় কাজ 
উদ্ভিদদেহে ও প্রাণীদেহে কোশের কাজের বিশেষত্ব ও কলার প্রকারভেদ 
প্রাণীকোশের গঠন - A Enables us to act on the external environment
- B Transmits motor information to the brain
- C Regulates the internal environment
- D Is located within the brain
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The autonomic nervous system (ANS) is a division of the peripheral nervous system that regulates the involuntary functions of the body, such as heart rate, breathing, digestion, and temperature control. It is responsible for maintaining the internal environment of the body, which is essential for survival.
Option C is the correct answer because it accurately describes the function of the ANS. The ANS controls the internal environment of the body by regulating the activity of organs and glands, which is necessary for maintaining homeostasis. For example, the sympathetic division of the ANS increases heart rate and blood pressure in response to stress, while the parasympathetic division decreases heart rate and promotes digestion.
Option A is incorrect because the ANS does not enable us to act on the external environment. It is responsible for involuntary functions that occur within the body, rather than voluntary movements that involve interaction with the external environment.
Option B is incorrect because the ANS does not transmit motor information to the brain. Rather, it transmits sensory information from the internal organs to the brain, which allows the brain to monitor and regulate the activity of the ANS.
Option D is incorrect because the ANS is not located within the brain. Rather, it is located outside the brain and spinal cord, and it consists of two main divisions: the sympathetic and parasympathetic nervous systems.
In conclusion, the correct answer is option C, which accurately describes the function of the autonomic nervous system. The ANS plays a crucial role in regulating the internal environment of the body and maintaining homeostasis.
Nervous System
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