Use the Guiding Principles document provided in the main menu. Select 3 guiding
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Question
Use the Guiding Principles document provided in the main menu. Select 3 guiding principles and explain how they can be applied to blood as a tissue. For each of them, provide specific examples of structures or physiological processes that exemplify the principle.
Guiding Principles of A&P; Cells form the foundation of body structure and function . The body is organized into a hierarchy of increasing complexity . Body systems are functionally integrated . Structure and function are closely related Relatively stable internal conditions are maintained despite changing external conditions ° Information flow coordinates body functions Energy input is needed to sustain lifeExplanation / Answer
Answer:
Statement 1: Energy input is needed to sustain life
Energy requirement for the growth, development, division and the metabolism of the cells is one of the prime factor which helps in the differentiation of the non living to the living cells.
Energy currency of the cell is ATP; Adenosine Tri Phosphate molecule. A high number of ATP molecule is obtained only upon the complete oxidation of the food. That is when sufficient amount of oxygen is available for the cells and hence they undergo aerobic respiration.
It is to be noted that for aerobic respiration the substrate is the glucose, or the fatty acid; and or the amino acid molecules and again these simple molecules are obtained by the hydrolysis; that is the digestion of the macromolecules.
For example; upon the consumption of starch which contains many molecules of glucose; it needs to be hydrolyzed for energy to be obtained. Likewise the digestion occurs and polysaccharide gets converted to single individual units of glucose molecules.
Since digestion gets completed in the small intestine; small intestine bears a number of finger like projections called villi in order to increase the surface absorptive area for an enhanced absorption. After absorption, the glucose and or other simpler monomers are sent to the different other body parts of the body with the help of blood; a liquid connective tissue wherein they enter inside the mitochondria. In the mitochondria they undergo aerobic respiration and thus yield a high amount of energy.
Statement 2:Information flow coordinates the body functions
The different body parts are connected to each other and also are integrated to each other such that one organ cannot function alone. It can only function when it is in an association with another organ. That is there is a proper series of an information flow coordination between the different body parts so as to maintain its functions.
As an example; pregnancy in human females is majorly maintained by the concentration of the hormone projesterone which is released by the corpus luteum cells of the graffian follicle. However again during the entire series of the pregnancy events; the ovaries do not release eggs and that is why pregnant women do not menstruate. This is due to the fact that the high concentration of the hormone progesterone gets dissolved in the blood stream and then reaches the hypothalamus of the brain via the hypophyseal portal system wherein it is detected by the brain and then likewise the brain does not releases gonadotropin releasing hormone which later impacts the pituitary gland and hence inhibits the release of the pituitary follicle stimulating hormone (FSH) which in turn is responsible for the release of the progesterone.
Thus we can observe that the information has moved between the different body parts together thus integrating and coordinating the different activities together and hence maintaining the information flow between the different body parts together via the blood.
Thus blood here plays a very important role in being a liquid connective tissue and thus maintaining and regulating the different functions together
Statement 3:Body sytems are fully integrated
Our human body has a number of systems which keeps us living. Of course the different body systems are studied together and also are discussed separately; yet they cannot function independently of the other body organs. That is they need to be connected to each other; and this is achievable by the blood.
Blood is a type of specialized connective tissue whose one of the major functions includes the connection of the different body parts together.
As for an example; ghrelin is hormone which is released by the stomach and this hormone is responsible for the detection of the feeling of the appetite. This sensation in turn has to be perceived by the brain. For this the nervous system and the digestive needs to be connected to each other. Without their integration; this would not have been possible.
Hence we can conclude that blood being a tissue plays a very important role in the integration and connection of the different body parts together
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