Skeleton 9/12 Notes Bone Biology Bone Biology * Bone is both a tissue and an organ. It is a specific type of biological tissue with its own unique chemical and molecular structure. Bone is a unique combination of organic and inorganic components. * Two levels of study * Macroscopic: gross morphological features * Microscopic: aka histology‚ study of tissues * Two levels of histology * Cellular * Molecular Bone Biology – Macroscopic * All bone in adult skeleton is
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Osteoporosis is a bone disease in which the bones become very brittle and weak. Even a little cough could fracture your bone. Causes: when you’re in your younger ages you constantly make new bone how much you store when you reach your peak can determine whether or not you develop osteoporosis. Risk factors of this disease are: • Your Sex‚ in which women are most likely to get it than men. • Your age‚ as you get older your body stops making “new bone”‚ so you will have a greater chance in getting
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Osteoporosis causes bones to become weak & brittle due to low bone mass & bone tissue deterioration. Chronic & progressive Most common origin of bone disease in U.S. Fractures transpire easily. Primary cause of fractures in elderly. Bone formation should match bone resorption. Osteoblasts Build (form) new bone & generate organic matrix & mineralize bone. Osteoclasts Breaks down bone & cause bone resorption. Osteocytes Maintain bone by directing when/where bone remodeling is to occur. Parathyroid
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Bones in our body are living tissue. They have their own blood vessels and are made of living cells‚ which help them to grow and to repair themselves. Every single person has a skeleton made up of many bones. These bones give your body structure‚ let you move in many ways‚ protect your internal organs‚ and more. As well‚ proteins‚ minerals and vitamins make up the bone. Bones have several parts‚ but are manily made out of calcium deposits. It takes around 20 years for our bones to completely
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involved. 2. Bone tissue is the primary type involved 3. Connective tissue is the specific type of tissue involved 4. Osteoblasts are the specific types of cells that produce the normal microanatomy of the tissue. 5a. With ageing‚ bone mass decreases. This is espeically true of women following menopuase. Estrogen acts as a protector of bone by inhibiting the activity of osteoclasts. Once estrogen levels drop‚ after menopause‚ osteoclast activity increases. 5b. Bone mineral density (BMD) is reduced
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Record responses in med blue bold font Student Exploration: Density Experiment: Slice and Dice Define Vocabulary Density: The degree of compactness of a substance Mass: A coherent‚ typically large body of matter with no definite shape Matter: The substance or substances of which any physical object consists or is composed Volume: The quantity of three-dimensional space occupied by a liquid‚ solid‚ or gas Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What do
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Finding Density Density is defined as mass per unit volume‚ which can be used to determine the object or substance observed. Many people use the density of objects to find what it is and how to classify the object. The object of the lab conducted was to find the density of the substances given and to find what the unknown liquid and solid were. The process to finding what the unknown solid and liquid were‚ was to find the density and to conduct multiple trials so when the density
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Title Page Density Formal Lab Report Name Professors Name Date Purpose/Objective: Determine density of a product for a plastic manufacturing facility. Provide quality control by making sure the physical properties are within design specifications. Density is defined as the ratio of an object’s mass to its volume‚ measured by dividing mass by volume (density = mass/volume). This was accomplished using two different experimental methods‚ displacement and floatation. The theory is that
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Density‚ Mass and Volume Density is the measure of how tightly the particles of a substance are packed into a given volume. L=1cm B=1cm H=1cm Aluminium=1cm3 Volume=lbh Volume= 1cm*1cm*1cm Volume= 1cm3 Iron 1cm3 1cm3 of iron would be however than 1 cm of aluminium. The density of the iron cube would be greater than the density of the aluminium cube. One explanation from that is that the particles/molecules in the iron cube are more tightly
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PHYSICS INTERNAL ASSESSMENT How to measure the density of water using graphical method? Name: Chia Yee Xin Candidate Number: Session: October 2014 School: Sri KDU International School Research Question: To measure the density of water using graphical method. Introduction: Water is the most abundant compound on the Earth and it covers about 70% of the Earth’s surface. Water is a transparent fluid which forms the world’s streams‚ lakes‚ oceans and rain‚ and is the major constituent of
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