Evolution for Humans Vestigial Structures-myassignmenthelp.com

Question: Discuss about theEvolution for Humans Vestigial Structure. Answer: Explain the function of the tailbone in humans (vestigial structures). The coccyx, also known as the tailbone, is a tiny, triangular bone similar to a reduced tail situated at the lowermost part of the spine. It is comprised of three to five vertebral bones. The backbones may be bonded together to create one bone; nevertheless, in some circumstances, the primary vertebra is detached from the other bones. The tailbone is known as a vestigial vertebral column. It purports that with the evolution it has misplaced its purpose in this instance it used to be a tail in humans (4). The tailbone is not that necessary in human beings, but it is not to say it has no function. Its functions include; one is that when an individual takes a seat, they distribute their weight evenly using their hips and also the tailbone. Thus this allows them to sit comfortably. Another function is that it will enable people to be well balanced when they sit down and hence they will not fall as a result. The next purpose of the tailbone is that all the muscles that aid in walking and sitting down comfortably in humans are attached to it. Thus this is an essential part of the body movement. Another function is that it is part of the system of bones and muscles that protect and give support the organs in the pelvis. The tailbone also aids in providing upright posture in people when they are working. The final function is that it allows for stability to anchor all muscles and ligaments that are important for boned to function (3). Describe the coccygeal vertebrae-structure and function including its evolution in humans. The coccyx results from when humans are embryos as the skeletal remainder of the caudal distinction which exists from four to eight weeks gestation of the fetus. This eminence consequently degenerates, but the tailbone goes on. Primarily, the four coccygeal spinal columns are detached, but all through the lifetime of a human, they typically meld together to create one uninterrupted bone.There is a visible variance in the structure among people. One common alternative is when the primary coccygeal vertebra (Co1) fails to join, and the others spit all through the grown-up life. Other people can possess one more or one less coccygeal spinal column which gives the individual a tailbone with five or three backbones (2). The coccygeal vertebrae-structure has evolved in which some mammals use the tail bones, but humans have the elongated tailbone as embryos, but when they are born, it has reduced in size. Although people think it is useless it has some functions. The function of the coccyge al vertebrae-structure is to carry the weight of an individual comfortably by distributing it evenly especially when sitting. It provides the axis for the human body. It centers it while they are standing or carrying out different activities.It also helps in proper movement and also maintaining the body posture correctly. Thus it helps humans with their movement. Another function is that it provides support to protect the organs in the lower abdomen area. Hence the muscles, ligaments, and bones are supported by this structure and protect this area (1). References Akta? E, ?enkyl A. Spinal Cord and Intervertebral Disc. In Musculoskeletal Research and Basic Science 2016 (pp. 483-498). Springer, Cham. Nicola CA, Alessandro NA, Arcangelo PE, Francesco SG, Francesco NA. Parametric model of lumbar vertebra. JIDEG. 2010 Nov 13(5):15-8. Tubbs RS, Malefant J, Loukas M, Jerry Oakes W, Oskouian RJ, Fries FN. Enigmatic human tails: a review of their history, embryology, classification, and clinical manifestations. Clinical Anatomy. 2016 May 1;29(4):430-8. Woon JT, Stringer MD. Clinical anatomy of the coccyx: a systematic review. Clinical anatomy. 2012 Mar 1;25(2):158-67.