Ulna

anatomical structure. Many animals share the same types of body and bone structures, which could only mean that they inherited it from a common ancestor. A specific example of this would be the bones in human’s arms, specifically the humerus, radius and the ulna. The forelegs of cats and dogs, the flippers on whales, and the wings of birds all share these exact same bones. This would lead us to assume that they either inherited this from a common ancestor or developed them through a similar…

whales, crocodiles, cats, birds, and bats all differ drastically on the biological spectrum, they share many of the same bones and limbs. For example, using the human as a comparison, the other animals also share some semblance of having a humerus, ulna, radius, carpal, metacarpal, and phalanges. 2. Are the bones of the limbs arranged in a similar or in a very different way in each animal? The bones of the limbs are arranged in a very similar way in each animal because they…

Most of the bones in the lower and upper extremities are long bones, including the femur, tibia, fibula, and metatarsals in the lower limb, and the humerus, radius, ulna, and metacarpals in the upper extremity. Each long bone has a shaft called a diaphysis and two ends that are usually wider than the shaft, known as epiphyses (singular = epiphysis). During the childhood and adolescent years, these cartilaginous epiphyses…

Analyze the bone remodeling process and the minerals involved in that process. Distinguish among the twelve common bone markings and provide examples of in which bones and locations those markings are found. Condyle- it is a large rounded prominence fitting into a fossa. This type of bone marking is a process that forms joints forming i.e. the medial condyle of the femur (Mid Lands Tech, 2016). Crest- it is slightly risen with protruded ridges. This type of bone marking is a process to attach…

“What happened?” my dad asks, the words dripping with skepticism. “Dad…my wrist hurts” I say sheepishly, clearly wanting to be out on the ice, not doubled over in the locker room. My dad takes one look at my wrist and his face turns white. He’s nearly speechless as he sees for the first time what I have yet to fully process. “Uhh...Ok, let’s get some of your equipment off, we’re going to the emergency room!” I tremble. This is the first time I realize this wasn’t just another bump or bruise.…

Rosenhek states that once diagnosed with a Tommy John injury, a doctor performs surgery (3). Around the area of the elbow, the patient's arm is opened. Holes are inserted to house a new tendon. This process usually occurs in the humerus bone or the ulna bone in the elbow. The surgeon collects a new tendon from the body. Usually after harvesting the…

Creationism, Intelligent Design, and Evolution, three words that seem to be thrown around a good bit, but which of them is “right”? Well, if you define “right” as being the most factual, then Evolution is, by far, the most :right” of these ideas. There is a mountain of evidence for Evolutionary Theory, such as genetic similarities between different species, following change over time in the fossil record, and even seeing Evolution in action. It is because of this evidence that many individuals…

Triceps brachii- origin: Long head: Infraglenoid tubercle below inferior lip of glenoid fossa scapula Lateral head: Upper half of posterior or surface of humerus Medial head: Distal 2/3 of posterior surface of humerus Insertion: Olecranon process of ulna Action: Long, lateral, medial head: Are involved in the extension of the elbow.…

Homologous structures are physical parts that have a similar composition throughout many animals, especially vertebrates. Take the “forearms” of humans, cats, whales and bats for example. Each one has a humerus, radius, ulna, carpals and phalanges, but the structure serves a different purpose for each animal (Evidence of Evolution). Vestigial structures are physical components that are either useless or do not serve the same use as they once did. Vestigial structures do…

on the chain of the swing. I got pulled back to the swing and lost my balance in the air and fell down. When I reached the ground I held my right arm out and it took the full force of the fall. I looked at my arm to see that either the radius or ulna bone in my arm was broken completely. The school called my dad and he came as quick as he could and took me to the hospital. Once I was there the nurse needed to give me a shot to make me sleep so they could set my bone back into place. The…