Paola Reeves July 13, 2020 Anatomy
The need for thinner, more transparent tissue specimens for study under the light microscope stimulated the development of improved methods of dissection, notably machines called microtomes that can slice specimens into extremely thin sections. In order to better distinguish the detail in these sections, synthetic dyes were used to stain tissues with different colours.
This is the result of humans having ancestors that began walking on their hind limbs rather than using all four limbs. Most of our anatomical insight was gained through the dissection of corpses (cadavers), and for a long time, it was the only way we could gain anatomical knowledge about the human body. It was a rather grotesque affair, but it made up the bulk of medical literature for centuries. These days, technological innovation has made it possible to explore human anatomy at a microscopic level.
The use of the microscope in discovering minute, previously unknown features was pursued on a more systematic basis in the 18th century, but progress tended to be slow until technical improvements in the compound microscope itself, beginning in the 1830s with the gradual development of achromatic lenses, greatly increased that instrument’s resolving power. These technical advances enabled Matthias Jakob Schleiden and Theodor Schwann to recognize in 1838–39 that the cell is the fundamental unit of organization in all living things.
Even to this day, scientists are newly discovering organs that were previously overlooked or have been mistakenly identified as other existing tissues. In 2018, scientists had discovered a new, body-wide organ called the Interstitium that exists right under the skin.
These can include biochemical and physical interactions between various factors and components in our body. With the progress of evolution, organisms began to exhibit advanced characteristics and features that enabled them to be more efficient and thrive in their respective environment.
One of the most prominent characteristic features is the ability to use our hands, especially for tasks that require dexterity, such as writing, opening a bottle of water, opening a doorknob, etc.
Tag Cloudlaboratory manual for anatomy & physiology laboratory manual for anatomy and physiology gross anatomy lab anatomy lab manual laboratory manual seeley's essentials of anatomy and physiology seeley's anatomy and physiology lab manual dissection lab exercises for the anatomy and physiology laboratory chapter 1 lab investigation the language of anatomy holes anatomy and physiology lab manual lab anatomy anatomy and physiology lab grant's anatomy lab laboratory manual for saladin's anatomy & physiology exploring anatomy in the laboratory lab manual anatomy and physiology virtual cadaver lab anatomy and physiology lab manual a&p lab laboratory manual for clinical anatomy and physiology for veterinary technicians