Explain the skeletal system, Biology

Assignment Help:

Explain the Skeletal System?

Skeletal System: The support framework, or skeleton, in the human body is composed of mostly hard mineral substances. Unlike crustaceans or insects who possess external skeletons (exoskeletons), humans have internal skeletons, or endoskeletons.

The human skeleton is divided into two parts, the axial skeleton and the appendicular skeleton. The axial skeleton includes the spine; the ribs; the sacrum, five united vertebrae at the end of the spinal column; the sternum or breastbone; and the cranium, or braincase. The appendicular skeleton contains 126 bones, including those of the arms, legs (the appendages), pelvis, and shoulders.

In addition functioning in locomotion, bones serve as mineral storage reservoirs and as protective cages -- the cranium protects the delicate brain tissue, ribs protect lungs, heart and other internal organs, and the backbone protects the spinal cord.

 


Related Discussions:- Explain the skeletal system

Pathogenesis of viruses, Pathogenesis of Viruses Viral diseases An...

Pathogenesis of Viruses Viral diseases An indicated before, viruses cause a number of infectious human diseases from minor ailments like common cold, to fatal disease, lik

Reptiles - regeneration in vertebrates, Reptiles - Regeneration in Vertebra...

Reptiles - Regeneration in Vertebrates Among reptiles, the lizards like the Gecko Hemidactylus flaviviridis and Anolis carolinensis can again generate their tail, following au

Foot as burrowing organ, Foot as Burrowing Organ The Scaphopoda that ...

Foot as Burrowing Organ The Scaphopoda that usually have burrowing habit, possess foot suitably modified for burrowing purpose. The conical and protrusible foot of Dentalium

Biosynthesis of hemes and chlorophylls, In animals, some of bacteria and fu...

In animals, some of bacteria and fungi, and the first step in tetrapyrrole synthesis is the condensation of the amino acid glycine with succinyl  CoA (an intermediate  of the citri

Explain germ layers that form tissues and organs in animals, Q. What are th...

Q. What are the three types of germ layers that form tissues and organs in animals? The three germ layers are the mesoderm, the ectoderm and the endoderm.

Factors controlling stomatal aperture, Factors Controlling Stomatal Apertur...

Factors Controlling Stomatal Aperture 'Khul Ja Sim Sim' the two rocks slide and the gates to a great treasure open. With these magic words "Ali Baba and Chalis Chor" could ope

Female reproductive tract, Female Reproductive Tract The female repro...

Female Reproductive Tract The female reproductive tract involves the fallopian tubes, uterus and vagina. Look at diagram. You would notice that the ovaries lay one on each si

Colluvial-transported soil, Colluvial These are the soils formed from t...

Colluvial These are the soils formed from the material transported by the pull of gravity. Fragments from cliffs or steep rocky slopes become dislodged from time to time and ma

Importance of mitosis, Equal Distribution of Hereditary Material: In mit...

Equal Distribution of Hereditary Material: In mitosis the heredity material is equally distributed in the daughter cell. 2.No Change in Genetic Information: As there is no

What is the typical morphological feature of nematodes, What is the typical...

What is the typical morphological feature of nematodes that differentiates them from platyhelminthes? Nematodes are also called as roundworms. As the name shows they are not fl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd