Choose one of the following and write a two-three paragraph post Essay

Choose one of the following and write a two-three paragraph post - Essay Example The main point is that men have been forced, in the past at least, to conform to a very limiting stereotype and they have been ridiculed if they dare to step outside of this narrow concept. By defining the word with a perspective of looking back in time, I would hope to encourage people to think about a different approach for the present and the future. Robert Jensen’s technical definition of masculinity is certain psychological or social traits that inherently come with being biologically male and he summarizes this in a more informal form with the phrase the tough guy. The negative aspects of this definition are quite clear to Jensen, and he describes the â€Å"toxic† effects which prevailing ideas of masculinity have on men today. Jensen stresses the cultural values attached to gender divisions, and advises that we do not need the extremes of masculinity and femininity any more, and we should concentrate instead on humanity, which can be shared by people of any gender. I think this is quite unrealistic and that masculinity as a concept is likely to last for a very long time. Rather than banning the use of the term, I would rather see it transformed with new and more positive

Gut Motility Practical assessment Essay Example | Topics and Well Written Essays - 500 words

Gut Motility Practical assessment - Essay Example The stimuilation causes a reaction on the membrane. It becomes depolarized. Permeability to calcium ions is also increased. The calcium ions concentration in is increased as a result of the voltage gated calcium-ions channel. From the synaptic cleft ACh is released to fuse with the muscuranic receptors as a result. The Gs protein then activates PLC after phosphoinositides activation. Diacylglycerol and inositol-1,4,5-triphosphate are generated inducing phosphorylation and leading to the regulation of the calcium ion concentration, Burnstock (1972). This is the initialization of the ileum contraction. Diacylglycerol triggers protein kinase C, phosphorylating the target proteins leading to increased Ca+2 instigating contraction. 3. Explain the cellular mechanisms of action of morphine and atropine on field stimulated-induced contractions and how/why this is affected by naloxone, using the data collected from BOTH the field stimulated and the direct ACH-induced contraction of ileum As illustrated from the graphs, it is evident that morphine has no much variance with field stimulated contraction. Atropine however recorded a substantial effect on the ACh-induced contraction. Atropine at concentration levels of between 10-9 and 10−8 M antagonized the contractile response of the tissues causing relaxation of the ileum described by Brenda et.al (1983). Morphine, through Gi-protein, restrains the formation of cAMP (Gracious et.al, 2008). Ca+2 concentrations are increased. Endogenous ACh release is effected. However, for ACh-induced contractions, M3 receptors are exogenously occupied by ACh. This initiates the ileum contraction. This indicates that morphine has minimal effect on ACh action. It restricts about 0.35mm only. Naloxone does not exploit Muscarinic receptors. According to Gillan & Pollock (1980), it behaves like an opioid receptor antagonist. It has insignificant effect on ACh-induced contraction.