Bone Growth and Remodeling During childhood, the long bones (in the arms, legs, and back) grow at the ends of the bones, whereas the flat bones (such as the skull) have a different pattern of growth. Adult bone actually continues to expand, although very slowly. Bone also continually undergoes remodeling, replacing old bone with new bone. Don't miss the "continue" and "start" buttons in these Flash animations. Growth in long bones This section updated 10/1/08. Growth in flat bones Bone remodeling One BMU spreading across a trabecular surface BMU means "Basic Multicellular Unit" and also has been called "Bone Remodeling Unit". Several BMU's in an area of trabecular bone To get a better idea of bone turnover, you must imagine many BMUs forming and resorbing, as shown in this animation. Repair after a fracture ©2003-8 by Susan OttLast update 8/4/08
Your Lungs & Respiratory System Listen Time for Talk Your lungs are important for breathing . . . and also for talking! Above the trachea (windpipe) is the larynx (say: LAIR-inks), which is sometimes called the voice box. Across the voice box are two tiny ridges called vocal cords, which open and close to make sounds. When you exhale air from the lungs, it comes through the trachea and larynx and reaches the vocal cords. The amount of air you blow out from your lungs determines how loud a sound will be and how long you can make the sound. Experiment with different sounds and the air it takes to make them — when you giggle, you let out your breath in short bits, but when you burp, you let swallowed air in your stomach out in one long one! Love Your Lungs Your lungs are amazing. Keeping your lungs looking and feeling healthy is a smart idea, and the best way to keep your lungs pink and healthy is not to smoke. You can also show your love for your lungs by exercising!
Differences-between-a-man-and-woman's-skeleton Although there are many distinctions between the male and female skeleton, there is no method that is 100% accurate to determine the sex of someone simply from their bones. The areas that are most distinctive are the pelvis and the skull. In addition, male bones are thicker and heavier than female bones. Pelvic bone: Wider in females to allow for easier childbirth (oval/round shaped)The first area one would look at to try to determine the sexMale pelvis is heavier and narrower (heart shaped)Female pelvis less massive and more delicateWoman of short stature tend to have broader pelvisesIn the 4th month of fetal development, characteristics of the pelvic bone in an individual begin to formIn the female, the upper end of the pelvis is tilted forward, while in males it is relatively vertical Skull (head features): Male Female Miscellaneous facts:
PT Education: The First Month with a New Client A New Direction Hi Team, as I promised in my first post for the year, 2010 at me-dot-com will see the introduction of some different types of articles. Today’s post is the first ever article (published on this site) written specifically for Personal Trainers (PTs), PT students, PT managers, centre managers and health club owners. Having personally completed over 40,000 PT sessions since 1987, I consider myself to have reasonable insight into what does and doesn’t work (on a range of levels) when it comes to the product and service of Personal Training. My centre in Brighton is a 10,000 square foot dedicated Personal Training Brighton facility: no members, no general training, no casual workouts, no contracts, no pressure sales and no queues for machines. When I began my PT career there was no blueprint to follow, no other PTs to learn from and no ‘How-to-PT’ guide. Back in the day (when I lived on the gym floor) my clients trained with me for an average of about three years. 1. 3. 4.
Skeletal System | Labeled Skeletal System [Continued from above] . . . calcium, iron, and energy in the form of fat. Finally, the skeleton grows throughout childhood and provides a framework for the rest of the body to grow along with it. The skeletal system in an adult body is made up of 206 individual bones. These bones are arranged into two major divisions: the axial skeleton and the appendicular skeleton. The axial skeleton runs along the body’s midline axis and is made up of 80 bones in the following regions: SkullHyoidAuditory ossiclesRibsSternumVertebral column The appendicular skeleton is made up of 126 bones in the folowing regions: Upper limbsLower limbsPelvic girdlePectoral (shoulder) girdle SkullThe skull is composed of 22 bones that are fused together except for the mandible. The bones of the superior portion of the skull are known as the cranium and protect the brain from damage. Hyoid and Auditory OssiclesThe hyoid is a small, U-shaped bone found just inferior to the mandible. Long.
The 5 rules for a high-performance body by John Berardi, Ph.D. Alright, brace yourself. This lesson is a bit longer than the others, but it's also perhaps the most important. So stick with me, because we're going to cover the most critical question, namely: What is good nutrition? Do you know what types of things you have to do to look better, feel better and be healthy? What do you think it means to “eat well” or “eat healthy?” Jot down a few notes on what you think it means to eat healthy. Then take a second to think about your list. Who taught you what you know about nutrition? Perhaps you learned what you know about nutrition from parents or family – what you were told at the dinner table growing up, what comfort foods you ate. And of course, no one is immune to the influence of the media – heck, every 3rd talk show is about food and dieting. And, no doubt, you’ve probably been influenced by your past dieting efforts – whether you’ve been successful or unsuccessful. Here's the point: So let’s start from the top. The 3S Criteria
How Bones Work" Hulton Archive/Getty ImagesA diagram showing back and side views of the human skeleton, circa 1900 The human body is an incredible machine. It runs so well most of the time that we don't have to pay much attention to any of the life-sustaining systems that are in motion around the clock, humming along without our mindful involvement. Right now, your body is performing vital and complicated tasks nearly too numerous to comprehend. Fortunately, our bodies don't demand our comprehension in order to pump the heart, oxygenate blood, regulate hormone production, interpret sensory data and carry out every other process that keeps our biological boats afloat. In this article, we'll discuss one of the systems that makes life possible: the skeletal system. Bones prevent you from puddling on the floor in the form of a jellyfish, but what else do they do? Before we leave behind our skeletal remains to freak out future generations, we should first learn some basics about bones: What are bones made of?
THE WONDERS OF WATER by Lawrence Wilson, MD © January 2015, The Center for Development Water is not only the most essential substance next to oxygen for human life. It is also complex, often containing hundreds of dissolved minerals and chemicals. This is the most important part of this article. 1. 2. 3. 4. 5. Oddly, packaging it in plastic jugs, even the cloudy type of plastic water containers found in the supermarket, does not ruin its properties, although it will add a little contamination to it. Also, I find that running water through copper or steel pipes also does not ruin it, as many health authorities contend. 6. 1. Drinking more than this, by the way, is not as good. Other beverages such as coffee, tea, juices, or others do not tend to hydrate the body nearly as well, and are discussed below. Also, do not drink with meals. An excellent idea is to drink about a quart of water upon arising and at least half an hour before breakfast. 2. 3. A. B. C. D. 3. 4. Alternatives to plastic jugs. 5. 6. 7. 1. 2.
Introductory Anatomy: Bones Dr. D.R.Johnson, Centre for Human Biology Anatomists talk about both bone and bones. The former is a type of connective tissue made up of cells suspended in a matrix: the collagenous matrix in bone just happens to be heavily impregnated with minerals. You will learn about bone cells elsewhere, but here is a picture of a cast of one, just to prove they exist . This osteocyte has characteristic long processes which run through the bone putting it in touch both with other cells and with blood vessels and nerves. Determination of shape The shape and structure of bones is governed by many factors, genetic, metabolic and mechanical. Function As a lever. Origin of bone is again in two main forms. Classification of bones The skeleton is made up of many bones which change in proportion between man and his close relatives but are easily recognisable. Long bones Typical of limbs, and a good place to start. Short bones Short bones are found in the wrist and ankle, carpals and tarsals respectively.
Types of bone Outline:Types on the basis of shape: Long bones,Short bones,Flat bones,Irregular bones,Pneumatic bones, Sesamoid bones Types on the basis of development: Membranous bones,Cartilaginous bones,Membro-cartilaginous bones Types on the basis of region: Bones of axial skeleton,Bones of appendicular skeleton Types on the basis of structure: According to Macroscopic approach; Compact bone,spongy bone According to Microscopic approach: Fibrous bone,Lamellar bone Types of bone Human bones are classified on different bases of classification. Types of bone on the basis of shape: On the basis of shape, bones are classified into seven different types;Long bones: These bones typically have an elongated shaft and two expanded ends one on either side of the shaft. Typical long bones: They have an elongated shaft and two ends and are represented by bones such as humerus, femur, radius, ulna, tibia and fibula. Femur Third Metacarpal Bone Modified long bones: These bones either have modified shaft or ends. Clavicle
Skeletal System – Posterior (Back) View [Continued from above] . . . calcium, iron, and energy in the form of fat. Finally, the skeleton grows throughout childhood and provides a framework for the rest of the body to grow along with it. Skeletal System Anatomy The skeletal system in an adult body is made up of 206 individual bones. These bones are arranged into two major divisions: the axial skeleton and the appendicular skeleton. SkullHyoidAuditory ossiclesRibsSternumVertebral column The appendicular skeleton is made up of 126 bones in the folowing regions: Upper limbsLower limbsPelvic girdlePectoral (shoulder) girdle SkullThe skull is composed of 22 bones that are fused together except for the mandible. The bones of the superior portion of the skull are known as the cranium and protect the brain from damage. Hyoid and Auditory OssiclesThe hyoid is a small, U-shaped bone found just inferior to the mandible. The malleus, incus, and stapes—known collectively as the auditory ossicles—are the smallest bones in the body. Long.