Skeletal System


skeletal system articles

Growth Issues. The skeletal system coordinates growth with muscle fibers in order to maintain alignment and balance. Some forms of chronic poor posture negatively impact normal growth patterns. For example, bad posture that places added stress on the vertebrae of the spine will cause the connective disks to wear down more quickly. Materials and Methods: 34 patients with proven malignancy referred for Tc99m –MDP bone scan for evaluation of metastatic disease status to the skeletal system were included. The study patient population consisted of 19 females and 15 males (age group: yrs). Aug 28,  · Educational Articles; Human Skeletal System; Human Skeletal System Aug 28, The human skeleton is comprised of the total set of bones that provide the human body a multifunctional structure. The adult human skeletal system contains bones! It also consists of the joints, cartilage, tendons, and ligaments that connect them.

The Human Skeletal System | Live Science

Human skeletonthe internal skeleton that serves as a framework for the body. This framework consists of many individual bones and cartilages. There also are bands of fibrous connective tissue —the ligaments and the tendons —in intimate relationship with the parts of the skeleton. This article is concerned primarily with the gross structure and the function of the skeleton of the normal human adult.

The human skeleton, like that of other vertebratesconsists of two principal subdivisions, each with origins distinct from the others and each presenting certain individual features. These are skeletal system articles the axialcomprising the vertebral column —the spine—and much of the skulland 2 the appendicularto which the pelvic hip and pectoral shoulder girdles and the bones and cartilages of the limbs belong.

Discussed in this article as part of the axial skeleton is a third subdivision, the visceral, comprising the lower jawsome elements of the upper jaw, and the branchial arches, including the hyoid bone. When one considers the relation of these subdivisions of the skeleton to the soft parts of the human body—such as the nervous systemthe digestive systemthe respiratory systemthe cardiovascular systemand the voluntary muscles of the muscle system —it is clear that the functions of the skeleton are of three different types: support, protection, and motion.

Of these functions, support is the most primitive and the oldest; likewise, the axial part of the skeleton was the first to evolve. The vertebral column, corresponding to the notochord in lower organisms, is the main support of the trunk.

The central nervous system lies largely within the axial skeleton, the brain being well protected by the cranium and the spinal cord by the vertebral column, by means of the bony neural arches the arches of bone that encircle the spinal cord and the intervening ligaments.

A distinctive characteristic of humans as compared with other mammals is erect posture. The human body is to some extent like a walking tower that moves on pillars, represented by the legs. Tremendous advantages have been gained from this erect posture, the chief among which has been the freeing of the arms for a great variety of uses, skeletal system articles.

Nevertheless, erect posture has created a number of mechanical problems—in particular, weight bearing. These problems have had to be met by adaptations of the skeletal system. Protection of the heartskeletal system articles, lungsand other organs and structures in the chest creates a problem somewhat different from that of the central nervous system.

These organs, the function of which involves motion, expansion, and contraction, skeletal system articles, must have a flexible and elastic protective covering. Such a covering is provided by the bony thoracic basket, or rib cagewhich forms the skeleton of the wall of the chest, or thorax.

The connection of the ribs to the breastbone—the sternum —is in all cases a secondary one, brought about by the relatively pliable rib costal cartilages.

The small joints between the ribs and the vertebrae permit a gliding motion of the ribs on the vertebrae during breathing and other activities. The motion is limited by the ligamentous attachments between ribs and vertebrae. The third general function of the skeleton is that of motion.

The great majority of the skeletal muscles are firmly anchored to the skeleton, usually to at least two bones and in some cases to many bones. Thus, skeletal system articles motions of the body and its parts, skeletal system articles, all the way from the lunge of the football player to the delicate manipulations of skeletal system articles handicraft artist or of the use of complicated instruments by a scientist, are made possible by separate and individual engineering arrangements between muscle and bone.

In this article the parts of the skeleton are described in terms of their sharing in these functions. The disorders and injuries that can affect the human skeleton are described in the article bone disease. Human skeleton. Article Media. Info Print Print. Table Of Contents. Submit Feedback. Thank you for your feedback, skeletal system articles. Introduction Axial and visceral skeleton The cranium Development of cranial skeletal system articles Interior of the cranium The hyoid: example of the anchoring function The facial bones and their complex functions The upper jaws The lower jaw Skeletal system articles spine The vertebral column The spinal cord The rib cage The appendicular skeleton Pectoral girdle and pelvic girdle Long bones of arms and legs Hands and feet, skeletal system articles.

Written By: Warren Andrew. See Article History. Start Your Free Skeletal system articles Today. Load Next Page. More Skeletal system articles.


The Effects of Bad Posture on the Skeletal System | Healthy Living


skeletal system articles


Recommended Resources. is a free, online reference library that lists medicinal herbs and their health benefits. is a free online reference database of phytonutrients (natural medicines found in foods) and their health benefits. Lists diseases, foods, herbs and . Materials and Methods: 34 patients with proven malignancy referred for Tc99m –MDP bone scan for evaluation of metastatic disease status to the skeletal system were included. The study patient population consisted of 19 females and 15 males (age group: yrs). Skeleton. In biology, the skeleton or skeletal system is the biological system providing physical support in living organisms. Skeletal systems are commonly divided into three types - external (an exoskeleton), internal (an endoskeleton), and fluid based (a hydrostatic skeleton), although hydrostatic skeletal systems may be classified separately.