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Biology 18 Online
OpenStudy (anonymous):

why are nucleus exist in the heart?whereas it is an unconcius organ..

OpenStudy (anonymous):

http://heartsnucleus.blogspot.com/

OpenStudy (anonymous):

The human nervous system has two main divisions (Figure 01a): the central nervous system (CNS), and the peripheral nervous system (PNS), which includes the somatic motor nervous system, and the sensory nervous system. The CNS consists of the brain and spinal cord. It acts as the central control region of the human nervous system, processing information and issuing commands. The autonomic nervous system (ANS) is the command network the CNS uses to maintain the body's homeostasis. It automatically regulates heartbeat and controls muscle contractions in the walls of blood vessels, digestive, urinary, and reproductive tracts. It also carries messages that help stimulate glands to secrete tears, mucus, and digestive enzymes.

OpenStudy (anonymous):

Are you asking about the nucleus of a cell, a ganglia, or a nerve center (like the cardiovascular center in the medulla)?

OpenStudy (anonymous):

yeah..i mean the nucleus of cell..if we compare the nucleus in smooth muscle such in our digestive organ..it seems different..they both (heart muscle and smooth muscle) have the nucleus..but the number is different..why??

OpenStudy (anonymous):

Are you talking about how some cardiac muscle cells can have two nuclei?

OpenStudy (anonymous):

yeah..i hope so *is being confused by his unclearly questiion..hehe

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