Whenever a mineral is needed hormone signals are sent to the bones and the mineral that is needed is released into the blood stream. Vitamin D is needed for bones to properly absorb and store these minerals. 2) Flat bones provide extensive surfaces for muscles to attach. Muscles attach to flat bones to help provide movement of the arms and legs. Flat bones provide protection for the internal organs including the brain, heart, lungs, liver and kidneys.
The skeletal system is made up of bones, cartilages, tendons and ligaments. These makes up about 20% of the total body mass. The skeleton , protection (the skull protects the brain and the rib cage supports organs such as heart and lungs), movement, mineral homeostasis (the bones store minerals such as calcium, phosphorus and magnesium), energy storage (the bone serves as an important chemical reserve and stores fats in the yellow marrow of the shaft of long bones) and haematopoiesis (all blood cells are formed in the red bone marrow of certain bones ). The muscles of the skeleton use the bones as levers for body movements and its parts. .
Describe the structure and development of bone and the factors that influence it. Bone is living tissue that makes up the body's skeleton. The bone consists of blood vessels, nerve cells and living bone cells. Bones are made up of calcium, phosphorus, sodium, and other minerals, as well as the protein collagen. Calcium is needed to make bones hard, which allows them to support your weight.
A tendon is tissue that connects muscles to bones. It is the muscles job to move the skeletal structure of the body. When a muscle contracts it creates a pulling motion. It is the connection of the tendon that acts as an elastic band, this allowes a contraction to move the bones. What is a ligament made of?
Lever; almost always the bone Fulcrum; the pivot point of the lever in which is usually the joint. Muscle force; the force that drives the opposite ends of the muscles together. Resistive force; the force generated by a factor to the external body Torque; the degree in which a force tends to rotate an object. http://www.answers.com/topic/first-class-lever http://www.answers.com/topic/first-class-lever There are three different types of levers in the body; First-class, Second-class and Third-class. First-class; when the muscle force and resistive force is on different sides of the fulcrum e.g.
[TYPE THE COMPANY NAME] DIFFERENCE BETWEEN THREE MUSCLE TYPES SKELETOL, SMOOTH AND CARDIAC MUSCLE ... GAOLATLHE THABISO KWENAMORE 24 SEPTEMBER 201101827 BIO 231 INTRODUCTION Muscles are multicellular contractile units. They are divided into three types which are skeletal muscle, smooth muscle and cardiac muscle and classification is done according to their structure, location and their function (Tortora and Derrickson,2011). Skeletal muscle is mainly responsible for the movement of the skeleton, but is also found in organs such as the globe of the eye and the tongue. It is a voluntary muscle, and therefore under conscious control, skeletal muscle is specialized for rapid and forceful contraction of short duration (Bevan et al,1996). In describing the cellular components of skeletal muscle, several specialized terms are used such as the plasma membrane of skeletal muscle is called the sarcolemma; its cytoplasm is known as sarcoplasm; the endoplasmic reticulum is called the sarcoplasmic reticulum.
Bodies in Balance The Skeletal System The human skeleton is mostly made up of bones. Bones are composed of four different types of cells, which are referred to as osteogenic (type of stem cells), osteoblast (bone forming cells), osteoclast (bone destructing cells), and osteocytes (transports bone containing essential minerals such as calcium and phosphate into the extracellular matrix). Further, it promotes the production of red blood cells in the bone marrow. The bones articulate at joints. The human body has 206 bones which are organized in the skeleton.
The brain, eyes, heart, lungs and spinal cord are all protected by your skeleton. Your cranium skull protects your brain and eyes, the ribs protect your heart and lungs and your vertebrae spine, backbones protect your spinal cord. Bones provide the structure for muscles to attach so that our bodies are able to move. Tendons are tough inelastic bands that hold attach muscle to bone. There are many differences between the male and female human skeletons.
The articular capsule has two layers: -Fibrous capsule: the outer layer - Synovial membrane: the inner layer that secretes synovial fluid which lubricates to reduce friction. The surface of the knee joint, the patella lies within the joint capsule and has an important function which is to reduce friction during extension and to protect the knee joint. The muscles that facilitate the movement of the synovial joints are skeletal muscles. The muscles that move the knee joint are called quadriceps and hamstring. When the agonist which is the contracting muscle which, in this case is the quadriceps, it allows flexion of the knee joint while the antagonist which will be the hamstring, is the relaxed
The skeletal system includes all of the bones and joints in the body. Each bone is a complex living organ that is made up of many cells,, protein fibers, and minerals. The skeleton provides support and protection for the soft tissues that make up the rest of the body. The skeletal system also provides attachment points for the rest of the body allowing movement. The skull is composed of 22 bones that aid in the support and movement, and protection of the brain.