Los Procesos Químicos Del Cuerpo

Los Procesos Quà ­micos Del Cuerpo Casandra Hernà ¡ndez Introduccià ³n A travà ©s de este trabajo la investigadora realizà ³ una revisià ³n de literatura relacionada a los procesos quà ­micos que ocurren en el cuerpo humano. Se comienza definiendo conceptos esenciales para comprender los procesos quà ­micos. Segà ºn Aguilar (2012) el cuerpo de los seres humanos es un sistema que està ¡ compuesto por cà ©lulas las cuales forman los tejidos. Mediante las cà ©lulas el cuerpo humano lleva a cabo las funciones vitales para vivir. El cuerpo del ser humano tiene procesos que son bà ¡sicos y que producen subsistemas esenciales donde un grupo de à ³rganos coordinados realizan las funciones esenciales del ser humano. El cuerpo humano tiene once sistemas que agrupan los à ³rganos esenciales para que funcione el cuerpo adecuadamente. Sistemas del cuerpo humano Estos sistemas son los siguientes: El sistema muscular que es el conjunto de mà ºsculos que tienen la responsabilidad de los cambios corporales, postura y locomocià ³n. El sistema à ³seo que es el conjunto de huesos que forman el esqueleto y protegen a los à ³rganos internos como el crà ¡neo y la columna vertebral. El sistema respiratorio que incluye a las fosas nasales, la faringe, la laringe y los pulmones que realizan el intercambio gaseoso. El sistema digestivo incluye la boca, el hà ­gado, el està ³mago, los intestinos y otros à ³rganos. Se encarga de realizar la degradacià ³n de los alimentos a nutrientes que luego asimila el cuerpo y utiliza en las actividades que realiza el organismo. El sistema excretor està ¡ compuesto por los rià ±ones y sus conductos los cuales funcionan para extraer los desechos metabà ³licos, osmorregulacià ³n y la homeostasis para mantener el equilibrio quà ­mico del cuerpo. El sistema circulatorio incluye el corazà ³n, vasos sanguà ­neos y cà ©lulas sanguà ­neas. El mismo sirve para llevar los alimentos y el oxà ­geno a las cà ©lulas. Ademà ¡s, recoge los desechos metabà ³licos que se elimina a travà ©s de los rià ±ones, en la orina y por el aire que se exhala por los pulmones. El sistema endocrino contiene las glà ¡ndulas productoras de hormonas que intervienen en la regulacià ³n del crecimiento, metabolismo y los procesos de la reproduccià ³n. El sistema nervioso està ¡ constituido por el cerebro, ganglios, nervios, à ³rganos de los sentidos para detectar, analizar los està ­mulos y crear las respuestas apropiadas. El aparato reproductor està ¡ compuesto por testà ­culos y ovarios para llevar a cabo el proceso de reproduccià ³n de los seres humanos. El sistema linfà ¡tico contiene los capilares circulatorios en los que se recoge y transporta el là ­quido de los tejidos. Ademà ¡s, transporta por el torrente sanguà ­neo los là ­pidos digeridos que vienen del intestino para eliminar y destruir las sustancias tà ³xicas. El mismo ayuda a que no se difundan las enfermedades a travà ©s del cuerpo. El sistema inmunolà ³gico està ¡ constituido por diferentes à ³rganos que està ¡n a travà ©s de los tejidos del cuerpo. Este sistema reconoce las estructuras y su principal propà ³sito es preservar su identidad. Està ¡ constituido por linfocitos y por anticuerpos. Se indica que el cuerpo humano es un mecanismo que se basa en los componentes quà ­micos para mantener un equilibrio en el mismo. El estado de equilibrio se le llama homeostasis. Cuando una o mà ¡s sustancias quà ­micas caen fuera de equilibrio por una disminucià ³n o aumento de los niveles, provoca que los sistemas del cuerpo humano trabajen de forma menos eficiente. Estos desequilibrios quà ­micos pueden suceder por un sinnà ºmero de razones logrando afectar el cuerpo de diversas formas (Melton, s.f.). La serotonina Segà ºn Melton (s.f.) la serotonina es un neurotransmisor que està ¡ en el cerebro. Cuando la serotonina se encuentra en niveles normales la persona tendrà ¡ una variedad de emociones y funcionarà ¡ eficientemente. Sin embargo, cuando los niveles de serotonina comienzan a disminuir por los cambios quà ­micos del cuerpo es por interaccià ³n farmacolà ³gica o por una enfermedad, que puede lograr que la personalidad del individuo cambie como: llegar a la depresià ³n y que aparezca el trastorno bipolar. De otra parte, cuando disminuyen los niveles de serotonina puede causar fatiga crà ³nica, trastornos del sueà ±o y cambios en el apetito. La insulina Tambià ©n, Melton indica que la insulina es una hormona que la produce el pà ¡ncreas y permite que la glucosa entre en las cà ©lulas del cuerpo. Cuando la misma se encuentra en niveles normales, se produce insulina suficiente y à ©sta es usada por el cuerpo para que la glucosa sea absorbida por las cà ©lulas del cuerpo para la obtencià ³n de energà ­a. Cuando los niveles de insulina comienzan a disminuir, se puede llegar a padecer de diabetes. La diabetes tipo 1 surge cuando el sistema inmunolà ³gico del cuerpo humano se vuelve en contra y a su vez destruye las cà ©lulas del pà ¡ncreas las cuales producen insulina. La diabetes tipo 2 ocurre cuando se producen las cà ©lulas que son resistentes a la insulina. Esto ocurre cuando las cà ©lulas no permiten a la insulina abrir las và ­as para que la glucosa penetre. El pà ¡ncreas produce una cantidad mayor de insulina cuando aumentan los niveles de glucosa en la sangre, pero las cà ©lulas no son receptivas y los niveles de g lucosa continà ºan en aumento. Desequilibrios hormonales pituitarios La glà ¡ndula pituitaria es una glà ¡ndula pequeà ±a que se encuentra en la base del cerebro. Esta glà ¡ndula produce hormonas que regulan la presià ³n sanguà ­nea, el crecimiento y algunos aspectos del sistema reproductivo. En algunas ocasiones ocurre el hipopituitarismo por el resultado de la disminucià ³n de los niveles de hormonas de la pituitaria. Cuando esto ocurre, puede causar trastornos en las funciones normales del cuerpo tales como la presià ³n arterial y la frecuencia cardà ­aca (Melton, s.f.). Cuando existe exceso de produccià ³n de hormonas hipofisarias, provoca una enfermedad llamada acromegalia. La misma puede causar la produccià ³n anormal de la hormona del crecimiento. Esta enfermedad se caracteriza porque algunas à ¡reas del cuerpo se vuelven mà ¡s grandes y fuera de proporcià ³n con el resto del cuerpo. Es un tipo de crecimiento excesivo que se da en las manos, pies y cara. Este crecimiento anormal surge en la edad madura despuà ©s que el proceso de crecimiento se ha parado. Si en la adolescencia se presenta gran cantidad de la hormona del crecimiento, se puede producir gigantismo (Melton, s.f.). Desequilibrios metabà ³licos Segà ºn Botanical Online (2015) el metabolismo permite funcionar, crecer y desarrollarse y realizar todas las funciones del organismo. Los alimentos producen la energà ­a mediante los nutrientes. El metabolismo tiene dos fases: Anabolismo: Tiene la funcià ³n de crear nuevas cà ©lulas, mantener los tejidos del cuerpo y crear reservas. Este tipo de proceso se conoce como metabolismo constructivo, asà ­ se forman los tejidos, los mà ºsculos o los nervios. Cuando ocurre esta fase el cuerpo gasta energà ­a. Catabolismo: Tiene la funcià ³n de descomponer los tejidos corporales y las sustancias de reserva para producir energà ­a. Se utiliza para obtener la energà ­a que el cuerpo necesita. Permite los procesos anabà ³licos como generar calor para mantener la temperatura corporal adecuada o proporcionar energà ­a que permite dar fuerza a los mà ºsculos. El metabolismo del individuo se relaciona con el peso, el apetito y los niveles de energà ­a del cuerpo. Cuando la glà ¡ndula tiroides no està ¡ activa puede causar enfermedades cardà ­acas, la fatiga y la obesidad. Cuando la tiroides produce demasiada hormona puede provocar que sea difà ­cil que una persona mantenga su peso saludable. Los trastornos en las glà ¡ndulas suprarrenales pueden producir cortisol en cantidad excesiva y causar que una persona gane peso en el à ¡rea del abdomen, esto se llama sà ­ndrome de Cushing. Tambià ©n, ocurren otros trastornos que logran niveles de cortisol mà ¡s bajos que los normales. El cortisol ayuda a mantener la presià ³n arterial, la glucosa en sangre y los niveles de energà ­a normales (Melton, s.f.). Principales procesos metabà ³licos Entre los principales proceso metabà ³licos se encuentran: la digestià ³n, que mediante los alimentos permite los procesos de creacià ³n de nuevos tejidos y el almacenamiento de las sustancias de reserva en forma de grasa corporal; la circulacià ³n de la sangre, en los cuales los nutrientes son trasportados por la sangre hasta el hà ­gado y las cà ©lulas del hà ­gado metabolizan cada sustancia para producir energà ­a. La eliminacià ³n de los productos de desecho mediante la defecacià ³n se elimina los residuos de la digestià ³n. La regulacià ³n de la temperatura corporal es la energà ­a producida por el proceso catabà ³lico genera calor que mantiene la temperatura corporal. Tambià ©n, existen otros mecanismos internos puede disminuir la temperatura corporal como el aumento del sudor o la dilatacià ³n de los vasos sanguà ­neos (Botanical Online, 2015). Desequilibrios del sistema reproductivo Segà ºn Melton (s.f.) los desequilibrios quà ­micos producidos en el sistema reproductivo pueden causar infertilidad y bajar el deseo sexual en ambos sexos. Cuando los niveles de estrà ³geno y testosterona està ¡n bajos, afecta el rendimiento sexual y la fertilidad. Los altos niveles de testosterona en los hombres pueden provocar un exceso de masa muscular. De otra parte, las mujeres con niveles altos de testosterona pueden experimentar calvicie de patrà ³n masculino y el crecimiento excesivo del pelo en la cara y el pecho. Otras mujeres pueden experimentar que su voz sea mà ¡s grave y llegar a ser mà ¡s masculino. Sin embargo, cuando los niveles de estrà ³geno son bajos en las mujeres tienen problemas con la menstruacià ³n, problemas para embarazarse y llevar el embarazo a tà ©rmino. Cuando las cantidades de estrà ³geno son excesivas, esto puede provocar cà ¡ncer de seno y otros tipos de cà ¡ncer en la mujer. Conclusià ³n El cuerpo humano està ¡ compuesto por una serie de sistemas que realizan cambios quà ­micos continuamente. Para que exista un balance, es necesario que todos los procesos està ©n sincronizados y no sufran ningà ºn desorden, ya que si existe alguno se afecta la salud de la persona. Es necesario que las cà ©lulas el cuerpo humano lleva a cabo las funciones vitales para el organismo pueda vivir adecuadamente. El cuerpo del ser humano tiene procesos que son bà ¡sicos y que producen subsistemas esenciales donde un grupo de à ³rganos coordinados realizan las funciones esenciales del mismo. Là ¡minas de los procesos quà ­micos del cuerpo REFERENCIAS Aguilar, J. E. (2011). Los sistemas fundamentales del cuerpo humano. Mà ©xico: Asociacià ³n Oaxaqueà ±a de Psicologà ­a, A. C. Botanical Online (2015). Metabolismo corporal. Recuperado de http://www.botanical-online.com/medicinalsmetabolismo.htm Melton, W. (s.f.).  ¿Cà ³mo un desequilibrio quà ­mico afecta tu cuerpo? Recuperado de http://www.ehowenespanol.com/desequilibrio-quimico-afecta-cuerpo-sobre_165852/

Positive and Negative Impacts of Postmodernism Essay

Having its roots in the Renaissance and the Enlightenment, modernism was the era of universal truth which was objectively understood and interpreted by humankind. Postmodernism, the period starting around 1950’s to present, rejects this notion of an objective and universal truth. Instead the postmodernist view of meaning is ambiguous and truth is relative to an individual or a group. Furthermore, postmodernism rejects the validity of grand narratives, such as religion, and their attempt to conceptualize existence from within a single rational and linguistic framework (â€Å"IDH†). Both positive and negative impacts arrive from such notion. The positive impact is that the goal of an individual or a group is to build relationship with God, no matter what religion they are. Therefore, the group becomes united. For example, Mega Church in Cleveland, demonstrates the Kingdom of God in its embrace of people of all races and religious backgrounds. The negative impact is expres sed through the fallible and multi-layered truth. It is impossible for an individual or a group to know the actual truth, and as a result, postmodernism undermines people’s beliefs. Postmodernism, an essay by Doy Moyer, a former priest who became a professor at Florida College, summarizes the negative impact of postmodernism. In order to better understand this aspect of postmodernism, one should take a closer look at its impact. The postmodernist groups reject the idea of an absolute truth, or religion, because truth is relative to the community in which they participate (Sparks). The truth is based on their experience of God by building relationship with Him. The Mega Church in Cleveland demonstrates such an idea. â€Å"The church consists of converted Muslim, completed Jew, Irish, Italian, a large delegation of Hispanic, Caucasian, and African-American members, of all walks of life† (Mega). The church’s postmodernist character welcomes those individuals or groups who see God relative to themselves. According to Michael Summers, director of church services at Wayland Baptist University, postmodernism focus on building relationships and connections. This ideal directly affects how the church as an organization relates to the church as the body of God. Disregarding the racial and religious differences, people are willing to unite and experience the truth as it  applies to them. â€Å"When it comes to choosing a church, postmodernists will search for a church that best fits them in terms of shaping relationship with God† (Park). An individual or a group seeks God not by aligning themselves with a certain religion, but through their faith and their emotions such as love for God. There is also a negative impact to postmodernism. Postmodernism undermines people’s beliefs and distorts the actual truth. The essay Postmodernism, by Doy Moyer, explains such contradiction.  According to the postmodern worldview, there are no such things as absolutes†¦ All ideas, all actions, no matter how different from â€Å"ours,† must be accepted†¦ One should be able to see how such a worldview is antagonistic toward those who believe in the inspiration of the Bible†¦ To say that we must tolerate everyone, then refuse to tolerate those who don’t kowtow to the movement, is sheer hypocrisy (Moyer). It is evident that the truth is altered due to relativity and diverse ideas, views, and outlooks. Such notion undermines people’s beliefs, leaving them with no idea what to believe in. Reason is to be distrusted because there is no way to know which person’s reason is reliable. There is no such thing as objectivity. There is no â€Å"truth† to appeal to for understanding histor y and culture. Texts, whether religious or philosophical or literary, do not have intrinsic meaning (Beverly). Disregarding the concrete historical religious texts such as Bible and Koran, an individual or a group is left with its unreliable experiences and unsupported views. The truth, thus, becomes multi-layered and fallible. The Mega Church in Cleveland is a great example of a positive impact of postmodernism. It unites people of different races and religious backgrounds in order to build a relationship with God. The downside is that people rely on their own experiences and ideas, since no truth is gained from religious texts such Bible and Koran. Such impact is explained in the work of Doy Moyer, called Postmodernism. Postmodernism allows people to, through personal experiences, gain knowledge and truth about God, which in process becomes relative and, at the same time, fallible. It rejects the grand narrative, religion, and its attempt to conceptualize the existence  and God from within a single rational and linguistic framework (IDH). Works Cited Beverly, James. â€Å"Postmodernism†. John Mark Ministries. 22 Apr. 2007 . IDH Staff. â€Å"IDH Student’s Unit 5 Guide to Postmodernism†. 10 Apr. 2007. IDH 2121. Valencia Community College. 22 Apr. 2007 Mega Church Official Website. 22 Apr. 2007 < http://www.megachurch.com/about.php>. Moyer, Doy. â€Å"Postmodernism†. 22 Apr. 2007 < http://www.inplainsite.org/html/ postmodernism.html>. Park, Vivian S. â€Å"Positive and Negative Impact of Postmodernism on Christianity†. 7 Jun. 2004. Christian Post. 22 Apr. 2007 < http://www.christianpost.com/article/ 20040607/7138.htm>. Sparks, Noy. â€Å"Postmodernism†. Valencia Community College. 22 Apr. 2007.

Culture Evaluation Essay

In doing this debate paper our learning team was asked to take the debate topic and apply it to another country. Our team is to examine how the arguments or presentation of the arguments would need to be changed. The team had its choice between three countries; India, China or Japan. Learning team C chose Japan. There is a major cultural shift when it comes to how Japanese citizens and American citizens value even the ownership of a gun. In American our right to own a gun, or multiple guns, is protected by the second amendment. In Japan however, gun ownership is not a right it is a privilege. Here in the United States we can walk into a gun store and with just a few simple questions and a phone call have our weapon in hand that day as we walk out of the store. Japan, on the other hand, must first take a day long class, and then take a written exam. The next step is to go to a shooting range, take a class and pass the range test. Then it is off to the doctor’s office for a drug screen and mental health check-up. Now the police keep this on file and start a rigorous background investigation to ensure you aren’t linked to known criminals or have a criminal history yourself. Now, if you successfully pass all these checks you are allowed to own a shotgun or an air rifle. Assault style weapons and handguns of all types are strictly forbidden by law. Only a few handguns even exist in Japan and those are for competition shooters only. Your home, under Japanese law, is subject to random searches by the police and the gun must be stored and locked away separately from your ammunition, which is also required to be under lock and key. (Fisher, 2012) So what does all this lead too? The lack of capability to even own a firearm in Japan has led to a drastically reduced gun crime rate. Compared to America in 2008 had over 12,000 gun related deaths, Japan on the other end of the spectrum had 11. (Fisher, 2012) In conclusion, Japan cannot even own a handgun let alone an assault weapon. Trying to apply what works in one country to another in this case would not work. Some Japanese feel that they would not even want these freedoms because they look to the authority for answers first. (Talmadge, 2013) This is a cultural preference in Japan. The country as a whole tends to think about the good of the whole of the people before what is good for the individual. If it is better for them to not have firearms, and clearly the statistics prove it, then that is the direction they have chosen for themselves.

Voter Id Laws By South Carolina - 2013 Words

Angelica Samano Political Science 2 Gina Wallace Political Research Portfolio Section 1: Voter ID laws The topics discussed in this research paper are some of the political issues that the people of the United States face everyday. Starting with the Voter ID laws, which were first enacted in the 1950’s by South Carolina (1). Since than it has been a method used by registered voters to present some type of formal identification before voting at there local government poll. This created a way to insure that residents of the united states did not vote multiple times and that the actual resident registered to vote was being represented. Although the disadvantages of the Voter ID laws are also endless, by enforcing identification to be present during the time voting period people who did not have the proper documentation were not allowed to vote. 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