University Of Phoenix 09 Sexual Response Cycle Sexual Response occurs in four different stages. According to Masters and Johnson, they are excitement, plateau, orgasm, and resolution. It is also characterized by vasocongestion or the engorgement of blood vessels with blood making the genitals and breast swell during the arousal state; the next is myotonia or muscle tension. This causes facial expressions, spasms in the hands and feet, and orgasms. Excitement The first phase is the excitement stage, by which an erection of the penis occurs in males and vaginal lubrication occurring in females.
It causes erection of the penis and swelling of the area surrounding the vaginal opening. The testes, the nipples, and even the earlobes swell as blood vessels dilate these areas. Myotonia is muscle tension. It causes facial grimaces, spasms in the hands and feet, and then the spasms of orgasm. Here we look at how each phase of the sexual response cycle works.
Angiotension II causes vasoconstriction, which raises the blood pressure. Angiotension II also stimulates aldosterone release from the adrenal gland. This leads to increased sodium reabsorption by the kidneys, which causes water to follow it, which then increases intravascular volume. The increased vasoconstriction and increased blood volume raise the blood pressure. Additionally, the perceived hypovolumic status causes the release of antidiuretic hormone (ADH) from the posterior pituitary.
Restate your predictions that were correct and give data from your experiment that support them. Restate your predictions that were not correct and correct them, giving supporting data from your experiment that supports your corrections. During exercise HR, SV, and CO will all increase due to the increased demand of oxygen needed throughout the body as well as the increased pumping action of the heart having to work faster to get blood to the tissues during exercise Application 1. We measured the stroke volume of the left ventricle. What was the average stroke volume of the right ventricle at rest and
Males tend to grow facial hair and chest hair. Females develop breasts and will experience their first menstrual cycle. The brain also experiences development. The corpus callosum thickens, which allows individuals to process information better. 4.
These phases are the starting point to the sexual response cycle and even though similar in description, men and women have many different bodily reactions. Men for example have the blood rush to their genitals engorging the penis with blood, the testis swelling, and the scrotum tightening allowing the testis to rise. Yet in women during these phases the clitoris flows with blood, much like the penis, the breast swell and the vaginal lips
Nurture; is it natural for men and woman to be attracted to the same sex? Or does the environment or society cause a person to seek companionship from the same sex? According to researchers they have examined the brains of both a heterosexual and a homosexual male and female and have determined that the hypothalamus (the organ in the brain that is responsible for sexual behavior) was much bigger in the homosexual subjects than in the heterosexual subjects. They believe this was a cause of an increased amount of early levels (probably prenatal) of estrogen (a natural or artificial female sex hormone responsible for the development of female sexual characteristics) in the men and androgen (a natural or artificial male sex hormone responsible for the development of male characteristics) in women. Also it is the possibility that a male receives too little androgen at birth and the female receives too little estrogen at birth causing the homosexual and the lesbian behavior.
I explain pointing to the inside of the uterus that "endometriosis is a condition in which endometrial cells that normally line the uterus are seeded throughout her pelvis" (Monahan, Sands, & Neighbors, 2007, p.1692). I continue to explain "that with each menstrual period the seeded cells are stimulated by ovarian hormones and bleed into the surrounding tissues, causing an inflammatory response. The encased blood may lead to palpable masses known as chocolate cysts" (Monahan, Sands, & Neighbors, 2007, p.1692). I can tell she looks a little confused so I try to think of a way to explain what I mean. I give her the analogy of when you have a pimple and it pops and how it explodes, well this is what the endometriosis does, but when it explodes it attaches itself to other parts of your anatomy, and can form on any part of your anatomy not just your uterus.
When the hypothalamus is stimulated by a trigger, a series of nerve cells start to fire and chemicals are released to prepare our body for running or fighting. When this fight or flight response is activated chemicals like adrenaline, noradrenalin and cortisol are released into our bloodstream and our bodies undergo a series of changes: our respiratory rate and blood pressure increase, blood is diverted away from our vital organs and sent to our muscles and limbs, our awareness intensifies, our sight sharpens, our impulses quicken, our perception of pain lessens, our immune system mobilises and we are prepared, physically and psychologically, to run or to fight. So, anger is an emotional, physiological and cognitive state: we feel it as a strong emotion, it has physiological effects on our body and it is also cognitive in that it triggers thoughts which have an effect on what we choose to do - retaliate with anger or rationalise the action that has caused the anger and choose to be conciliatory. Everyone has angry feelings from time to time. It is a normal adaptive emotion and as such, not in itself problematic.
According to Dennis O’Neil, states “[primate] men are usually larger and s physically dominant over [primate] females” (p. 1). Similarly, human men are typically taller and have a greater body mass than females. Ironically, when certain female primates are at their sexual peak they display visible physical characteristics. According to Robert Jurmain, Lynn Kilgore, Wenda Trevathan, Russell L. Ciochon, published Introduction to Physical Anthropology, states “Sexual behavior is tied to the female’s reproductive cycle, with female being sexually receptive to males only when they’re in estrus[4]” (p.195). The pinkish swelling of the genitals has been traced to apes and monkeys in the Old World; this is a signal they have reached a new maturity