The regulation of fluid balance is crucial to survival. Approximately 9 L of fluid enters the gastrointestinal tract per day. Of that amount, about 2 L is ingested by mouth. The remaining 7 L consists of fluids secreted by the various gastrointestinal organs. Ninety eight percent of the total amount of fluid that enters the gastrointestinal tract is reabsorbed in the small intestine and the colon. (more…)
After appropriate digestion of nutrients, the function of the gastrointestinal tract is to absorb these nutrients so they may be us ...
The motility of the gastrointestinal tract is complex, and normal motility is critical to proper secretion and digestion. In order ...
The accumulative waste theory of aging, also known as the waste accumulation or garbage accumulation theory of aging, proposes ...
The reduced physiological reserve after the one quoted above includes anatomical changes associated with aging, functional resp ...
Doctors frequently have the patients need their dietary advice. As a doctor, I ‘ve talked to many patients over the huge amount ...
The motility of the gastrointestinal tract is complex, and normal motility is critical to proper secretion and digestion. In order for gastrointestinal motility to be effective, it must be coordinated with other intestinal functions such as secretion and absorption, and it must be regulated and integrated in a precise fashion. (more…)
The regulation of fluid balance is crucial to survival. Approximately 9 L of fluid enters the gastrointestinal tract per day. Of th ...
After appropriate digestion of nutrients, the function of the gastrointestinal tract is to absorb these nutrients so they may be us ...
The reduced physiological reserve after the one quoted above includes anatomical changes associated with aging, functional resp ...
A number of global changes occur in the human nervous system with age. These changes affect the Autonomic Nervous System as well as ...
Positron Emission Tomography (PET) has proven to be a sensitive and specific tool for identifying functional brain changes in patie ...
The reduced physiological reserve after the one quoted above includes anatomical changes associated with aging, functional respiratory, urinary tract and gastrointestinal tract. In the case of the respiratory system is well established that the lung function deteriorates with increasing age. Some of the anatomical changes that contribute to loss of function include:
(a) Decline broncheolar average diameter, (more…)
The motility of the gastrointestinal tract is complex, and normal motility is critical to proper secretion and digestion. In order ...
The regulation of fluid balance is crucial to survival. Approximately 9 L of fluid enters the gastrointestinal tract per day. Of th ...
Growing older results in the various changes in the anatomy and physiology of human cardiovascular system. This affects in both hea ...
In elderly people there is a notable reduction in the capacity to produce new blood cells. Yet, unless there is substantial phy ...
Potential benefits of T treatment in older men must be weighed against risks of adverse effects. In young hypogonadal men, physiolo ...