The bladder is connected to the vagina by the urethra. The vulva is the external portion of the reproductive tract. It often becomes red and swollen just prior to estrus and this swollen condition is usually more pronounced in gilts than in sows. The hypothalamus located at the base of the brain secretes gonadotropin releasing hormone (GnRH) which regulates the anterior pituitary gland to secret FSH (Follicle Stimulating Hormone) and LH
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All living organisms maintain a complex dynamic equilibrium‚ or homeostasis‚ which is constantly challenged by internal or external adverse effects‚ termed stressors.[4‚5] Thus‚ stress is defined as a state in which homeostasis is actually threatened or perceived to be so; homeostasis is re-established by a complex repertoire of behavioral and physiological adaptive responses of the organism Our biological stress response was designed for survival and is regulated by both the neural and endocrine
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Cortisol helps maintain blood pressure and cardiovascular function‚ slows immune systems inflammatory response‚ breaks down sugar for energy (balancing insulin levels) and helps regulate metabolism of proteins‚ carbohydrates and fats. The brains hypothalamus glands control and accurately balance the amounts of cortisol needed. Symptoms of Addison’s disease are slow and progressive but if left untreated may become fatal. Worsening fatigue and muscle weakness‚ loss of appetite and weight loss are
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The Science of Love • There are three phases to falling in love and different hormones are involved at each stage. • Events occurring in the brain when we are in love have similarities with mental illness. • When we are attracted to somebody‚ it could be because subconsciously we like their genes. • Smell could be as important as looks when it comes to the fanciability factor. We like the look and smell of people who are most like our parents. • Science can help determine whether a relationship
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* Difference in Somatic and Autonomic Nervous System * The somatic nervous system consists of nerves that provide VOLUNTARY control over skeletal muscles * The autonomic nervous system exerts INVOLUNTARY control over the contraction of smooth muscle‚ cardiac muscle‚ and glandular activity. * Basic function of the Sympathetic VS Parasympathetic Systems * Sympathetic system= “fight of flight” * Parasympathetic system= “rest and digest” * Both autonomic branches are required
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It is produced by and “controlled by a complex set of hormones produced in the hypothalamus of the brain and in the intestinal tract and pancreas” (Harvard Men’s Health Watch). It is one of the main reasons why kids grow‚ because the production of HGH rises during childhood and produces the most during puberty; this is the stages in
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anterior and posterior lobes. Between there is a small‚ relatively avasacular zone called the pars intermedia. This intermediate lobe is absent in human beings. Pituitary gland lies in the sella turcica at the base of the brain and is connected to the hypothalamus by the pituitary stalk. Hormones of pituitary gland (Hypophysis) Anterior pituitary (adenohypophysis) secretes thyroid stimulating hormone (TSH‚ thyrotropin)‚ adrenocorticotropic hormone (ACTH‚ corticotropin)‚ lutenizing hormone (LH)‚ follicle
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Acute Stress – Sympatho- Adreno- Medullary Pathway 1. Hypothalamus * Sends a signal to the sympathetic ganglia 2. Sympathetic Ganglia * Connected to internal organs * Activates the Adrenal Medulla. 3. Adrenal Medulla * Releases Adrenaline and Noradrenalin into the blood stream. * Prepares the body for fight or flight mode. Stress as a Bodily Response Stress if the lack of fit between the individual and their environment. What are the signs of stress
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Human Endocrine System A system of glands and cells that make hormones that are released directly into the blood and travel to tissues and organs all over the body. The endocrine system controls growth‚ sexual development‚ sleep‚ hunger‚ and the way the body uses food. [pic] The human endocrine system modulates several processes of the body by the function of hormones. The endocrine system secretes hormones that control how bodily functions work. Thus‚ the human endocrine system watches
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Part 1 of 15 - 6.67/ 8.335 Points Question 1 of 60 1.67/ 1.667 Points An organ that can be classified as both an endocrine and exocrine gland is the A. hypothalamus. B. thymus gland. C. gallbladder. D. pituitary gland. E. pancreas. Answer Key: E Feedback: Good job! Question 2 of 60 1.67/ 1.667 Points Hormones that bind to receptors inside of target cells are usually A. proteins. B. second messengers. C. lipid soluble. D. prohormones. E. water soluble
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