Contractions

... of the stomach can be removed without the loss of hunger motivation. Similarly, it is known that severing the vagus nerve, which causes stomach contractions to cease, does not eliminate the experience of hunger. * parasympathetic nervous system ( in human nervous system (anatomy): Parasympathetic ...

See entire post

... it's not thought to be the case for DOMSl - lactate (not lactic acid) is produced at increased rates by skeletal muscle during relatively intense contractions via anaerobic glycolysis and secreted into the blood. There, it serves as a chemical buffer. From there, it largely is used by the liver ...

See entire post

... do its job for whatever reason: there is a second self-contracting node referred to as the atrioventricular node that can maintain a rhythm of 50 contractions/minute if the SA node fails to impose its higher rhythm, and even a thrid node referred to as the His bundle, that can maintain a rhythm ...

See entire post

... at the correct times. Contraction is controlled by the central nervous system (CNS), which comprises the brain and spinal cord. Voluntary muscle contractions are initiated in the brain, while the spinal cord initiates involuntary reflexes. ref:http://bioisolutions.blogspot.com/2008/02/muscle-contraction.html

See entire post

... true that the metanephridium conducts ultrafiltiration in podocytes? I have read that this true, notes make a vague mention regarding how the body contractions of the annelid sp. aid in this process. Any extra information comparing and contrasting the two sytems is greatly appreciated.

See entire post