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

Polyembryony, Polyembryony Presence of more than one embryo in a seed...

Polyembryony Presence of more than one embryo in a seed is termed polyembryony. The phenomenon, first discovered in orange seeds by Leeuwenhoek (1719), attracted considerable

Phylum coelenterata, #questioen..what is the example of outline og phylum c...

#questioen..what is the example of outline og phylum coelenterata

What is catharanthus roseus pharmaceutical compounds, Q. What is Catharanth...

Q. What is Catharanthus roseus pharmaceutical compounds? This species yielded the alkaloids vincristine and vinblastine. Traditionally used by various cultures for the treatmen

Respiration, what is the meaning of direct and indirect respiration

what is the meaning of direct and indirect respiration

Neontology, Neontology : It is the study of recently formed organisms. Neon...

Neontology : It is the study of recently formed organisms. Neontology science is the part of biology that is in contrast to paleontology. Neontology science deals with now living o

What do you mean by alpha diversity, Q. What do you mean by Alpha diversity...

Q. What do you mean by Alpha diversity? Alpha (a) richness refers to the number of species found in small, homogenous area. Alpha diversity refers to the diversity in a partic

Male reproductive disorders-preputial prolapse, Preputial prolapse Thi...

Preputial prolapse This deformity is seen in some of the tropical zebu breeds but is not uncommon in European breeds. Initially, it begins as a temperory eversion of a small p

How big of container would need to hold, Assume you were given a mixture co...

Assume you were given a mixture consisting of one molecule each of all possible sequences of a smallish protein of molecular weight 4800 daltons. If the average molecular weight of

Factors affecting biotic potential - population growth, Factors Affecting B...

Factors Affecting Biotic Potential - Population Growth Biotic potential differs from one species to another e.g., bacterial populations can grow faster than population of oak

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