Cranial capacity

Human evolution is a key theory in anthropology, particularly within the sub-fields of biological anthropology and archaeology. The theory of evolution describes the process of a gradual change in traits in a species over time. Human evolution describes the slow process that led to the rise of anatomically modern humans—who we are today. During this process, traits were altered in order to adapt to environmental situations and needs. The name of our species is Homo sapiens sapiens. Out of…

and more modern traits. The problem of how these diminutive hominins arrived on the island of Flores is still a mystery. The dating shows H. floresiensis arrived over a million years ago by the tools they left behind. The hominins had a minimal cranial capacity, yet they were able to live and prosper until recent times. The Indonesian Island of Flores is a tropical Sunda Island with a history of unusual hominins. In 2003, a team of Australian and Indonesian scientists excavated a hominin in…

evolved to what we are today. The average male Au afarensis weighs about 92 lbs and females about 64 lbs. (National Museum of Natural History) For chimpanzees males could weigh up to 150 lbs and 10-15% heavier than females. Au. afarensis has a cranial capacity of 450cc and the Chimpanzees…

Also, their pentagonal shape of the face allows the species to have relatively larger brains. This is due to bigger cranial vault capacities and modes of speciation evolving over generations, which leads to the emergence of hominins. Thus, larger brains were significant adaptations that define the origins of anatomically modern humans. The development of bigger capacity of cranial vaults allowed complex thinking for species. This demonstrates the genus Homo evolving various anatomical features…

One of the most feared injuries a person can experience is permanent vision loss or blindness. This injury is often associated with medical errors; Medical Malpractice. To awaken from a long but otherwise successful surgery for something unrelated to vision entirely, and feel an indescribable scorching, burning, shooting, extreme pain deep within your eye and realize that your vision in that eye is completely gone, is tremendously frightening and devastating. The first thing I remember when…

The patient presents an intracranial lesion to the anterior frontal lobe. This will result in damage of the prefrontal cortex causing apraxia and mild rigidity. The prefrontal cortex contains Brodmann’s Areas 9, 10, and 11. Damage to Area 9 is “frontal syndrome” which means the patient rarely follows a plan to completion. Area 10 is involved in judgement, anticipation of consequences, and social intelligence. Area 11 is on the ventral surface of the frontal lobe and incorporates emotions,…

Blood Pressure Blood pressure , as a physiological variable of humans, is a hydrostatic pressure, utilized by blood on the walls of blood vessels.(Tortora and Derrickson 2011). It is caused by the contraction of the ventricles and the amount of blood in the whole cardiovascular system. The mean blood pressure (the average pressure in the cardiac cycle) is coordinated in order to provide adequate blood transfer to the tissues.(Saladin,2001). The decrease of blood pressure is followed by an…

Introduction: In biology, evolution is the process in which different types of living organisms are believed to have developed and changed since its early stages during earth’s history. For instance, as a species evolves over time they begin to develop new traits though they also begin to lose other traits. Basically evolution is change. However, evolution is only seen as a reliable theory. Evidence that scientist have to prove evolution as a reliable theory are fossils and relative dating. In…

this species cared for weak and older individuals. Homo ergaster is sometimes categorized as a subspecies of Homo erectus. Homo ergaster can be distinguished by its thinner skull bones, smaller, orthognathic face and dental arcade, and larger cranial capacity. Homo ergaster was estimated to be able to stand at about 6ft tall and have a reduced sexual dimorphism compared to earlier hominins. In features the ergaster have a tall slender body, flatter face, projecting nose and an expanded brain…

The world of paleoanthropology is constantly changing as people make new discoveries at digging sites or in an office examining fossils. Things are constantly shifting in that world and changing modern day human’s understanding of the past and their evolution. When looking at fossils, they try to see how much variation is needed to name it a new species or not. There are different fossils that are currently being argued about, where it is questioned if the fossil should be classified as a…