Adrenal cortex

TAQ 1 Explain the term Homeostasis. The term homeostasis is derived from two Greek words; homios meaning ‘the same’ and stasis meaning ‘steady’. It refers to the processes by which the body and internal cells seek to constantly maintain an internal state of balance and equilibrium even when faced with external environmental changes. This is achieved through either positive or negative feedback loop controls associated mainly with the endocrine and nervous systems. Principal homeostatic…

Renin catalyzes angiotensinogen which is further catalyzed into angiotensin I and again further catalyzed into angiotensin II. The renin-angiotensin system plays a huge role in the regulation of blood pressure because angiotensin II stimulates the adrenal cortex which tells the body to produce aldosterone. The hormone aldosterone tells the kidneys to increase the reabsorption of water and sodium ions to in turn increase blood volume which will further increase blood pressure. This is…

constrict blood flow and reduces testosterone circulation. Two types of steroid hormones that affect sexual behavior are androgens and estrogens. Androgens are produced the reproductive organs in both males and females. They are located in the ovaries, adrenal glands, and testes. Estrogens are familiarly produced in both the male and female reproductive glands, the ovaries and testes. Women and men produce both types of steroid hormones. A neuropeptide hormone that affects sexual behavior is…

Brazilian Jiu-jitsu Brazilian Jiu-jitsu, or BJJ, is a style of martial arts, modified from the ancient Japanese art of Jiu-jitsu by the Gracie family and others, based on using an opponent’s momentum and leverage against them for defense. It involves take-downs and grappling, and has become a large sport that can be seen incorporated in the televised sport Mixed Martial Arts, or MMA. BJJ is a high intensity sport that involves endurance training as well as resistance training and explosive…

Social Stress: Theory and Related Topics Orgil Altankhuyag Social Stress : Theory and Related Topics By Orgil Altankhuyag 20120123046 MBB S(Medicine Bachelor and Bachelor of Surgery) student of Anhui Medical University Submitted in 2015/2/27 Key words: Symbolic interaction, Functionalism, Serotonin deficient, Stressors, Life events, Individual, General Adaptation Syndrome Word count: Abstract In this project, I want to discuss about stress, social stress theories, theories…

Stressors may vary from daily hassles to major life events. Typically, during the initial exposure to a stress, our brains appraise the stress and set off a cascade of regulatory responses, that is, activation of the hypothalamic-pituitary-adrenal cortex system (HPA axis) and the sympathetic nervous. Various hormones including corticotrophin-releasing hormone (CRH), adrenocorticotropic-releasing hormone (ACTH), cortisol, and adrenalin are in turn released into the bloodstream. The degree of…

Nutritional requirement in Old Age / Geriatric Nutrition Human biological growth and decline extent over the entire life span. Throughout life all experiences make their imprint on individual genetic heritage. The general process of senescence affects all older adults. Although the biological changes in aging are general, each person is unique and people show a wide variety of individual responses individuals’ age at different rates and in different ways, depending on their genetic heritage heir…

The question of whether or not psychology is a science is a query which tends to come up in academic circles, usually deteriorating into arguments surrounding the validity of the discipline. Psychology, being the most popular undergraduate major in the United States, is an appealing field of study for many youths considering a career that will not only allow them to flourish monetarily but also helps them to develop the skills they use in social interactions everyday. As a result of its…

Introduction: Stress is one of the most prevalent and life-threatening forms of mental illness affecting more than one fifth of the world’s population. It is always related to alterations of signaling pathways mainly the hypothalamic-pituitary-adrenal axis (Mikhai et al, 2014). Rat models are an obligatory tool to study the etiology and progression of behavioural and biochemical changes induced by oxidative stress. Restraint stress produces an imbalance between oxidants and antioxidants,…

Jones. Mr. Jones appeared to be in distressed. He is now using his accessory muscles to breathe, crackles are heard on auscultation and there is decreased air entry in the left and right bases. Chest X ray revealed consolidation on the left lower lobe and atelectasis in the right lower lobe. After a series of investigation in the emergency department, Mr. Jones was commenced on Normal Saline at 125 mls/hr and he was given oxygen via non rebreather mask at 10L/min. He was then transferred…