Hypothalamus

Hormone is a biological process that involves signaling molecules. These hormones “are secreted into extracellular fluid, which circulate in the blood or hemolymph of animals. This communicates regulatory messages throughout the body” (Reese 993). There are many things that may trigger a hormone to trigger different responses within the human body. This includes intracellular proteins and receptors. First, intracellular proteins act with intracellular receptors. “Intracellular receptors for…

When Do Men Stop Growing? Between the ages of 12 and 16, many biological changes occur in men. Apart from changes in body composition and sexual maturation, they usually experience rapid increases in height known as growth spurts during this time. It is generally agreed that height growth stops somewhere between ages of 16 and 20 when you reach physical adulthood. However, a man’s growth is dependent on a multitude of factors, like his genetic potential and environmental factors. So, it is…

If there are any abnormalities to the natural release of the hormones within the human body that could negatively influence the human body in a variety of aspects at different stages of their life. Through the time period of a child becoming an adult they could experience poor growth to their height as well as their internal organs (You & Your Hormones, 2014). The lack of grow into adulthood could negatively influence their sense of well being, and increase their risk of heart disease and the…

Four Small Things Four important hormones help you every day to achieve the things that make you happy. Endorphins, serotonin, oxytocin and dopamine are released from the pituitary gland, which is located at the base of the brain. The pituitary gland is part of the endocrine system which is responsible for growth, reproduction, sleep, mood, etc. The pituitary gland is about the size of a pea and is known as the “master gland” since it controls many important functions in the body. Endorphins,…

The hypothalamus, is found in the brain, all humans and most animals have it. The hypothalamus is important because it helps the body maintain homeostasis and it controls specific hormones. The word homeostasis is separated into two parts, homeo means “the same” and stasis means “not moving” or to “hold,” (An Overview). In terms of body temperature, homeostasis is referring to the maintenance of internal balance. In order to achieve homeostasis for animals, they maintain a relatively constant…

homeostasis. The way it does this is through the dual centre theory of feeding behaviour; when there is a decrease in blood glucose and an increase in ghrelin they lateral hypothalamus is activated causing hunger and eating to begin. Eating causes an increase in blood glucose levels and a decrease in ghrelin activating the hypothalamus causing satiety. However, for a hunger mechanism to be adaptive it must anticipate and prevent energy deficiencies not just react to them as homeostasis does;…

anterior hypothalamus as a cause for homosexuality in respect to the brain being a “sexual organ”, as it [the brain] “undergoes sexual differentiation to match the other characteristics of sex” (Barinaga, 1991) (Gooren, 2006). The anterior hypothalamus can be referred to as “INAH (1,2,3, or 4)” for it has 4 different cell regions within in itself that can be individually studied. The brain gives evidence of sexual differences in many animals and most recently, human…

The fight-or-flight response is the reaction when a person perceives a threat. This person has now has two physiological options, to stand up to that threat and fight, or to run away (Grohol). To understand what happens during fight or flight, one needs to understand what chemicals and hormones are used during the process. First, the nervous system is broken down into two major systems: Central and Peripheral. The central nervous system consists of the brain and the spinal cord, and deals with…

Human beings (endothermic homeotherms) maintain their core body temperature around 37°C (98.6° F) by homeostasis in response to changes in the surrounding temperatures and do so through conduction, convection, radiation and evaporation. The hypothalamus of the brain, kidneys and liver are the organs that help control homeostasis and it is thermoregulation that plays a vital role in homeostasis for the stability of our body temperature. Homeostasis, keeping the balance: An important role in…

your body regulates hypothalamus to sense normal body temperature. 9. Hypothalamus is what sensors the body temperature. 10a. The two mechanisms the body uses to cool itself are the blood vessels in the skin dilate to radiate heat and the sweat glands increase sweat production. 10b.The two mechanisms the body uses to heat itself are the blood vessels in the skin constrict, reducing heat loss and the muscles begin to shiver, generating heat. 11a. The stimulus is the hypothalamus senses that…