RESPONSES- 125words each first post#1Jonathan Brooks topic -Honey I Shrunk the Kids: Why we need Growth hormoneResearch:Our growth hormone can lead to major growth to our liver, bones, cartilage, muscle and fat. Our growth hormone can also be referred to as different names, which includes GH for short or also somatotropin. Our growth hormones are secreted by somatotropic cells, which are located in the anterior pituitary (Mcgraw-Hill,p.620.). Growth hormones are produced a thousand times more by anterior pituitary than any other hormone (Mcgraw-Hill,p.620.). The overall main goal for our growth hormone is to increase the amount of tissue growth within our body. Our growth hormone greatly differ from any of the other pituitary hormones, due to how our growth hormone have an effect on our entire body completely. Other than when our growth hormone affects our muscle and bone, it also causes many of our tissues and liver to secrete growth stimulants (Mcgraw-Hill,p.622.). The growth stimulants that are created from some of our tissue and liver secretion are called Insulin-like growth factors. The most noticeable effects of our growth hormone is to our cartilage, muscle growth and also to our bones. Our growth hormone is very important in the development of children, It’s most effective peak is during puberty, which plays a significant role in our growth spurt (Utiger,para.1). One of the leading causes of dwarfism or for someone to have a smaller stature is due to a growth hormone deficiency, which can be caused by the hypothalamus or the pituitary gland being damaged during fetal development or also a mutation in the genes (Utiger,para.4). An excessive amount of growth hormone production can lead to some cases of gigantism.Critican Thinking:Our growth hormone is vital to the growth and development of most of our body. Having an excessive amount or not having enough of our growth hormone can have a massive effect on how our body develops and functions. After doing research, I believe that I can be more knowledgeable on how important our growth hormone is to development and I understand the effects that can occur if someone may have a limited or an excessive amount of their growth hormone.   (Word Count 357)Saladin, K. (2020). Anatomy and Physiology: The Unit of form and function (9th ed). McGraw Hill education.Utiger, R. Growth Hormone. Britannia. https://www.britannica.com/science/growth-hormonesecond post #2Elezar Yelizarov topic-From Sperm to Semen- Structure, composition, normal sperm count, viabilityResearchSperm are formed and released by the male reproductive organs. They are produced in the testes in coiled structures referred to as seminiferous tubules. Each testicle has a cordlike structure called the epididymis, in which the sperm mature and is stored. Once the man is stimulated, ejaculation is triggered, and mature sperm starts to travel from the epididymis to the vas deferens. When the sperm reaches the ampulla overhead the prostate gland, the seminal vesicle adjacent to it secretes the seminal fluid, which is then pushed towards the urethra via the ejaculatory ducts. As the sperm goes through the prostate gland, a milky fluid is incorporated to produce semen. Lastly, the semen containing the sperm is propelled from the penis via the urethra (Saladin, 2020, p.1035).A significant constituent of the fluid in semen consists of secretions from male reproductive organs. In addition, semen contains protein, citric acid, fructose, enzymes, and catecholamines (adrenaline, noradrenaline, and dopamine). A sperm generally comprises a head, body, and tail. However, the shape and size might vary due to different abnormalities. The head of the sperm is oval with a smooth surface and looks like the shape of an egg. The size of the head is 2.5 to 3.5 micrometers wide and 4.0 to 5.5 micrometers long. Additionally, the head has a properly built acrosome occupying almost half the size of the oval-shaped head. The acrosome has enzymes that expedite sperm entry into the membrane of an egg. The nucleus in the head holds the DNA of the cell. The head is followed by the body or middle piece, which is almost the same length as the head. It is full of mitochondria which generate energy for propelling the sperm. The tail is approximately 45 micrometers long, protrudes out of the body, and moves like a propeller. It is a long flagellum that propels the sperm forward. It enables the sperms to swim in order to reach the ovum. (Bjrndahl et al., 2016)  Semen analysis is a test of a man’s sperm and semen, which includes sperm count or volume and sperm viability measured in shape and motility. Sperm count is critical for successful conception. A normal sperm count varies from fifteen million to over 200 million sperm per milliliter (mL) of semen. A sperm count below fifteen million is perceived to be low and might affect fertilization. Sperm viability is the proportion of live sperms in the semen sample. Each constituent of semen influences its viability after ejaculation into the female reproductive tract (Bjrndahl et al., 2016).Critical ThinkingThe mnemonic technique I use to memorize the production and path of a mature sperm during ejaculation is SEVEn UP (Seminiferous tubule, Epididymis, Vas deferens, Ejaculatory duct, nothing, Urethra, Penis. This mnemonic summarizes the parts of the male reproductive system from the production of sperm to semen and finally ejaculation.Understanding sperm production to semen until ejaculation is vital to me as a nursing student and to the community in various ways. As a nursing student, understanding sperm production and the path of mature sperm is critical when diagnosing health problems associated with fertility in men. A correct diagnosis will lead to proper treatment. The community also may benefit from the information because they will understand the scientific reasons for fertility and infertility and thus seek scientific solutions such as medication instead of resorting to unproven traditional beliefs and practices. ReferencesBjrndahl, L., Barratt, C. L., Mortimer, D., & Jouannet, P. (2016). ‘How to count sperm properly: checklist for acceptability of studies based on human semen analysis. Human Reproduction, 31(2), 227-232. https://doi.org/10.1093/humrep/dev305Saladin, K. (2020). Anatomy & physiology: The unit of form and function (9th ed.). McGraw Hill Education. Free features N Outline $5 FREE N Revisions $30 FREE N Title Page $5 FREE N Bibliography $15 FREE N Formatting $10 FREE PLACE AN ORDER NOW Why Choose Us? 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