BASIC CONTROL MECHANISMS OF THERMOREGULATORY PROCESS IN LIVESTOCK SALAMI SAHEED AYODEJI Introduction Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries‚ even when the surrounding temperature is very different (Wikipedia‚ 2012). Thermoregulation could also be referred to as the mechanisms and control systems used by the body to balance thermal inputs and thermal losses so as to maintain its core temperature nearly constant (Monique‚ 2002). This
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motion when walking‚ standing or sitting‚ and it lets you think‚ dream‚ reason‚ and experience emotions. The brain has five key parts that work together to make your brain function; the cerebrum‚ cerebellum‚ brain stem‚ pituitary gland‚ and the hypothalamus. All this fits inside your brain which is about the size of a head of cauliflower. The cerebrum is the biggest part of your brain; it makes up about 85% of your brains weight. It is the thinking part of your brain and it controls your voluntary
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to an otherwise normal animal will cause which of the following? You correctly answered: d. goiter development 5. Thyrotropin-releasing hormone (TRH) is You correctly answered: a. secreted by the hypothalamus. 6. Which of the following statements is true? You correctly answered: b. The hypothalamus primarily secretes tropic hormones that stimulate the secretion of other hormones. Post-lab Quiz Results You scored 85% by answering 6 out of 7 questions correctly. 1. How would you treat a thyroidectomized
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anterior pituitary gland located at the base of the brain. They stimulate male and female gonads to produce hormones of their own. FSH and LH secretion is controlled by GnRH (gonadotropin-releasing hormone)‚ which is a releasing hormone from the hypothalamus. The sex of an embryo is determined at fertilization‚ but secondary sex characteristics develop at puberty. Testosterone regulation is important because males need just enough to develop increased muscle and bone mass‚ growth of body hair‚ and
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The field of study dealing with the endocrine system and its disorders is endocrinology‚ a branch of internal medicine. The endocrine system is an umbrella term used to describe the complexity of different types of endocrine glands which are responsible to help the body carry out many of its functions. This system regulates our mood‚ growth‚ metabolism‚ tissue development‚ sexual functions and reproductive process. The endocrine system is made of a series of glands that produce chemicals
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Equine Reproductive System Tim Heckart In exploring the reproductive system of the horse we must first understand that this system is made up of physical structures and hormonal or chemical secretions‚ actions‚ and reactions. While the physical structures are readily identifiable‚ the hormonal systems are a bit more obscure. Some of these hormonal actions and reactions are still not fully understood today. We begin with the delivery of a Filly. At this stage in her life she already has all
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major role in emotions. h) The limbic lobe of the cerebral cortex is on the external surface of the brain. i) The hypothalamus is adjacent to the fourth ventricle. j) The pineal gland is directly controlled by the adrenal gland. k) The pituitary gland secretes steroid hormones. l) The neocortex is found in all vertebrates. m) The pituitary gland is controlled by the hypothalamus. n) Grooming behaviour in mammals is usually learned behaviour. o) Norepinephrine (NE) from the adrenal gland directly
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Pituitary Anterior – Located in the base of the brain attached to the hypothalamus. Growth Hormone(GH) – Stimulates an increase in size and rate of division of body cells; enhances movement of amino acids through membranes; promotes growth of long bones. Prolactin (PRL) – Sustains milk production after birth; amplifies effect of LH in males. Thyroid-stimulating Hormone (TSH) – Controls secretion of hormones from the thyroid gland. Adrenocorticotropic Hormone (ACTH) – Controls secretion of certain
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body and help with thermoregulation. Thermoregulation is the way that the body keeps its internal temperature at a safe level. When the body is exposed to low temperature‚ thermoreceptors in the hypothalamus detect blood temperature and thermoreceptors in the skin detect skin temperature. The hypothalamus‚ a section of the brain‚ decides what response is needed. The thyroid glands in the Endocrine system release thyroxine to increase metabolism. The
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Chapter 8.1 1. List the four biological levels of organization in a human in order from most simple to most complex. Cells‚ tissues‚ organs‚ organ systems 2. Define the term “homeostasis”. The tendency of the body to maintain a relatively constant internal environment. 3. What does the term “feedback system” refer to with respect to homeostasis? A cycle of events in which a variable‚ such as body temperature‚ is continually monitored‚ assessed‚ and adjusted. 4. List the three components
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