“In order to understand what the brain does‚ it is first necessary to understand what it is – to know the names and locations of its major parts and how they are connected to one another” (Pinel‚ 2011. p. 51). The five major structures that compose the brain are labeled as myelencephalon‚ metencephalon‚ mesencephalon‚ diencephalon‚ and telencephalon. These major structures are what create the adult forebrain‚ midbrain‚ and the hindbrain. First‚ the myelencephalon is also known as the medulla
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homosexuals and heterosexuals‚ and part of it lies within the hypothalamus. The hypothalamus is a small part of the brain that controls sexual behavior‚ among other things‚ and it responds to pheromones (Hypothalamus‚ n.d.). Several nuclei in the hypothalamus are sexually dimorphic; this includes the interstitial nucleus of the anterior hypothalamus (INAH). The INAH is a nucleus located between the groups of tissue in the anterior hypothalamus. Although there are four INAH‚ only the INAH3 is widely accepted
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levels of the hormones to initiate the feeling of hunger or fullness. This tool is called the hypothalamus which used key areas to function the hunger mechanic. It also interacts with another part of the brain called the hippocampus in the experience of hunger and fullness. The lateral hypothalamus when stimulated will increase appetite but reduce it if it has sustained damage. The ventro-medial hypothalamus operates in the opposite way as it reduces appetite if stimulated but increases it if damaged
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an endocrine gland about the size of a pea and weighing 0.5 grams (0.018 oz) in humans. It is not a part of the brain. It is a protrusion off the bottom of the hypothalamus at the base of the brain‚ and rests in a small‚ bony cavity (sella turcica) covered by a dural fold (diaphragma sellae). The pituitary is functionally connected to the hypothalamus by the median eminence via a small tube called the infundibular stem (Pituitary stalk). The pituitary fossa‚ in which the pituitary gland sits‚ is situated
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The Relationship Between The Nervous System and The Endocrine System The cells and tissues in the body are delicate and easily disrupted. They will only be able to function well if all aspects of their chemical and physical environment is continuously adjusted to keep them stable and in equilibrium. The process in which several body systems work together to maintain the balanced environment is called homeostasis. The endocrine and nervous system work closely together to help maintain homeostasis
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ENDOCRINE SYSTEM 1) KNOW ALL OF THE ENDOCRINE GLAND & HOROMONES * Hypothalamus Although it is part of the brain‚ the hypothalamus secretes several hormones and is very closely related to the activity of the endocrine system. * The hormones it secretes are: * Releasing hormones – stimulate the secretion of specific anterior pituitary hormones * Release inhibiting hormones – inhibit the secretion of specific anterior pituitary hormones Pituitary * A small
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is activated by the rise in blood temperature and is responsible for for controlling the mechanisms that will decrease the blood temperature. Efferent nerve impulses are sent from the hypothalamus to multiple different corrective mechanisms to try to decrease the blood temperature and maintain it at approximately 37℃. The efferent nerve impulses causes the smooth muscles to relax and as a result‚ opens up blood capillaries near the surface of the skin. This is known as vasodilation as the blood
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neurohypophysis) comprises the posterior lobe of the pituitary gland and is part of the endocrine system. Despite its name‚ the posterior pituitary gland is not a gland‚ per se; rather‚ it is largely a collection of axonal projections from the hypothalamus that terminate behind the anterior pituitary gland. It is where neurohypophysial hormones are stored and released. small oval endocrine gland that lies at the base of the brain. It is sometimes called the master gland of the body because all the
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Inside the womb we start out as an egg‚ but one of the first major structures that begin to form is the brain. The brain itself is a complex structure that leaves much to be learned from it. It controls a person’s entire body function and movements whether it be walking‚ talking‚ or even going to the bathroom. What most people do not know is that there are five major structures of the brain. The first of the five is the myelencephalon ( the Medulla). The Myelencephalon (or medulla) is the posterior
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in blood glucose‚ this increases the feeling of hunger which is activated by the lateral hypothalamus in the brain. This contains a neurotransmitter called the neuropeptide Y which causes the individual to consume food‚ therefore resulting in the glucose levels to rise again. This rise in glucose levels activates the ventromedial hypothalamus which leads to feelings of satiation. The ventromedial hypothalamus contains an area called the paraventricular nucleus which is believed to cause a condition
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