Chapter 19 - Reproductive Systems Reproductive System: What is the function of the male and female reproduction systems? Produce and nurture sex cells (gametes)‚ and transport them to the site of fertilization. Male: The male sex organs are designed to transport sperm to eggs. Primary sex organs (gonads) produce sperm and hormones while accessory sex organs have a supportive function. The Testes: The testes are ovoid structures suspended in the skin-covered pouch called the scrotum. Each
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Title: Homeostasis Date: 19th January 2010 Aim: To observe‚ draw and label the parts of a nephron. Apparatus: Slide of the transverse section of a kidney Pencil Paper Microscope Method: The slide of the transverse section of a kidney was mounted on the microscope and observed under high power. Drawings of the parts of the nephron were made. Calculations of Magnification: Loop of Henle One Ocular Division = 0.22 µm Size of Specimen = 2 ocular divisions Conversion of Ocular
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• Ureterocele • Ureterocele • A ureterocele is a cystic out-pouching of the distal ureter into the urinary bladder. • Affects the kidney‚ ureter‚ and bladder • An abnormality that develops during embryo development • It is present at birth but may not be discovered until later in life. • There is no known prevention for this condition • Ureterocele Background • The clinical rate of ureteroceles has been found to be approximately 1 in 4000 pediatric admissions • Occurring almost entirely
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foods‚ and removing waste gases that are produced in the process. Digestion is the chemical change of ingested foods into simpler substances that can be taken in and used by body parts. Absorption is the passage of digested substances through membranes 5. Define metabolism. The totality of chemical changes that occur within body parts. 6. List and describe five requirements of organisms. Water‚ the most abundant substance in the body‚
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layers upon a basal membrane. Although this epithelium is referred to as squamous‚ many cells within the layers may not be flattened; this is due to the convention of naming epithelia according to the cell type at the surface. In the deeper layers‚ the cells may be columnar or cuboidal. This type of epithelium is well suited to areas in the body subject to constant abrasion‚ as it is the thickest and layers can be sequentially sloughed off and replaced before the basement membrane is exposed. It allows
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Importance of colloidal dispersion in pharmacy Pharmaceutical Applications of colloids: Colloids are extensively used for modifying the properties of pharmaceutical agents. The most common property that is affected is the solubility of a drug .However‚ colloidal forms of many drugs exhibits substantially different properties when compared with traditional forms of these drugs. Certain medicinals have been found to possess unusual or increased therapeutic properties when formulated in the colloidal
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Humans can acquire all of theirs by eating milk‚ eggs‚ and meat. 3. Which statement about nutrient absorption by the intestinal mucosal cells is true? a. Carbohydrates are absorbed as disaccharides. b. Fats are absorbed as fatty acids and monoglycerides. c. Amino acids move across the plasma membrane only by diffusion. d. Bile transports fats across the plasma membrane. e. Most nutrients are absorbed in the duodenum. 4. Microbial fermentation in the gut of a cow a. produces fatty acids as
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WEEK 1: AN INTRODUCTION TO HUMAN ANATOMY & PHYSIOLOGY 1. Anatomy is the study of the structure and shape of body and parts‚ while physiology is the study of how the body work and function‚ their relationship is seen for example in the heart‚ there are two valves (anatomy) and these two valves help the heart pump blood. 2. The atom is the smallest particle of an element. An example is carbon ( C ) which is the building block of life. A group of atoms could form for example‚ a water molecule
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protons and electrons. The electrons are passed from carrier to carrier in the bilayer of the inner membrane of the mitochondrial cristae‚ releasing energy at each one. This energy is used to pump the protons through the carriers into the intermembrane space‚ creating a gradient. Due to this gradient‚ the protons flow from the intermembrane space back into the matrix by ATP Synthase in the inner membrane. This movement of protons allows 28 ADP and 28
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following questions: A) Define osmosis. Osmosis is the movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration‚ aiming to equalize the solute concentrations on the two sides.[1][2][3] It may also be used to describe a physical process in which any solvent moves‚ without input of energy‚[4] across a semi permeable membrane (permeable to the solvent‚ but not the solute) separating two solutions of different concentrations.[5] Although osmosis
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