MALE REPRODUCTION MALE REPRODUCTIVE PHYSIOLOGY Testis - 2 compartments: interstitial tissue containing the Leydig cells that synthesize and secrete testosterone and the seminiferous tubules that produce spermatozoa and contain Sertoli cells Leydig cells and testosterone synthesis - Leydig cells mainly produce testosterone - T is a prohormone for synthesis of estradiol (vs. aromatase) and DHT (via. 5-alpha-reductase) - many effects of T are mediated via estradiol (esp in
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Home Group Leader Assignment: Physiology of Physical Activity Physical activity has been a part of societies for centuries. Activity has been incorporated into people’s daily lives in various forms such as sport‚ weightlifting‚ running‚ hiking‚ swimming and walking to name a few. Many perform physical activity for physical‚ emotional and mental well-being while others take part for leisurely fun. The physiology of how physical activity affects our bodies has been studied thoroughly. In the following
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(P1) Outline the functions of the main cell components Every individual possess billions of cells in their body but not only is the human body functional With cells but also contains tissues‚ organs and systems which is what the human body is made up of. The cell carries out vast numbers of chemical reactions which processes in order to make up the essence of life (Moonie N‚ Aldworth C‚ Billingham M & Talman H ‚2012). Cells are usually grouped together with other cells carrying out particular
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anatomy and physiology lab 1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin? cancer than Mariah?Judy had a pasty white skin. Therefore‚ her skin had less melanin than Mariah who had black hair and more melanin and are more protected against the uv rays of sun. 2. What observations did Judy make concerning her mole? Her mole changed shaped and turned bigger and its side were jagged. The middle was purplish-black and its edge were darker than
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End stage renal disease can manifest as a variety of symptoms that include general malaise‚ weakness‚ dry skin‚ pruritus‚ and headaches‚ loss of appetite‚ and sometimes nausea and vomiting. Also‚ drowsiness‚ confusion‚ muscle twitching or cramps‚ easy bruising‚ nosebleeds‚ edema‚ low urine output‚ etc. If kidney failure is untreated‚ it can develop to seizures‚ coma‚ and death. With that being said‚ we have to remember that when people deal with life challenges‚ they experience emotional anxiety
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E X E R C I S E 2 Skeletal Muscle Physiology O B J E C T I V E S 1. To define these terms used in describing muscle physiology: multiple motor unit summation‚ maximal stimulus‚ treppe‚ wave summation‚ and tetanus. 2. To identify two ways that the mode of stimulation can affect muscle force production. 3. To plot a graph relating stimulus strength and twitch force to illustrate graded muscle response. 4. To explain how slow‚ smooth‚ sustained contraction is possible in
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FROG MUSCLE PHYSIOLOGY 2) What was the smallest voltage required to produce max contraction? What proportion of the muscle fibers in the muscle do you think were contracting to produce this maximal response? Muscle fibers act in response to isolated stimuli in an all or none fashion. However‚ a muscle organ‚ such as the gastrocnemius muscle‚ is composed of many individual muscle fibers. It is known that all of the fibers in a muscle do not have the same threshold and that a stimulus applied to
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Organism Physiology Paper The Physiological Evolution of the Crocodile Mother Nature diversity in regards to the animal kingdom is amazing. Throughout the Centuries‚ there have been changes to the globe and therefore to the habitat of the humans‚ animals‚ plants and all of the infinite organisms that live in our planet. However‚ even though there have been changes‚ the living organisms also have adapted to their new environment by changing their genetic composition and acquiring new characteristics
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An explanation of the physiology of two named body systems in relation to energy metabolism in the body. (P4) In this assignment I will be explaining the physiology of two named body systems in relation to energy metabolism in the body‚ the Respiration system and the Digestive system. I will start off by giving a definition of energy metabolism in the body. Metabolism in the body is a collection of chemical reactions that takes place in the body’s cells. Metabolism converts the nutrients in the
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the body. These are just a few of the many contributors who added to our understanding of the human body and how it functions. Anatomy is the study of the structure or morphology of the body and how the body parts are organized. | | | Physiology is the study of the functions of body parts‚ what they do and how they do it. These two areas of the organization of the body are so closely associated that it is difficult to separate them. For example‚ our mouth has teeth to break down food mechanically
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