The Circle of Willis is a part of the circulatory structure in the brain. It is named after Thomas Willis, the British physician. This structure is an anastomosis which is a link or a connection between two blood vessels. The Circle of Willis forms the vascular supply to the brain and the structures that surround […]
Last updated on February 5th, 2018 at 6:01 am
What is Quadratus Lumborum? The Quadratus Lumborum is one of the deepest abdominal muscles and is commonly referred to as a back muscle. It is located in the posterior abdominal wall on either side of the lumbar spine and is irregular and quadrilateral in shape. The Quadratus Lumborum starts at the lowest rib and ends […]
Last updated on May 19th, 2018 at 9:39 am
The humerus is the long bone located in the upper arm of the body which extends from the shoulder joint to the elbow. The word “humerus’’ literally means upper arm and is the only bone in the upper arm. (more…)
Last updated on April 5th, 2018 at 9:17 am
What is Medulla Oblongata? The Medulla Oblongata is a cone-shaped, neuronal cluster in the hindbrain. It is the lowest part of the brainstem located in front of the cerebellum and is connected to the midbrain by the pons moving down to the spinal cord. The main compositions of Medulla Oblongata are cranial nerve nuclei IX-to-XII, […]
Last updated on February 5th, 2018 at 6:06 am
What is the Tricuspid Valve? The tricuspid valve is one of the main values which is present in the mammalian heart. It is situated on the right, dorsal side of the heart, and it is situated between the right atrium and the right ventricle. The tricuspid valve is made up of three flaps which open […]
Last updated on February 5th, 2018 at 6:08 am
What is the Cribriform Plate? In the human skull, Cribriform Plate is a significant part that separates the brain from the nasal cavity. It is like a honeycomb or sieve-like structure that is thin and narrow and has tiny perforations. This plate which is situated between the anterior cranial fossa and the nasal cavity is […]
Last updated on March 16th, 2018 at 9:33 am
What is Tibialis Posterior Muscle? The tibialis posterior muscle is a relatively small, centrally located muscle present on the back side of the leg. This muscle is located between the two bones fibula and tibia in the lower leg and descends down to connect with the various other bones through the ankle. The tibialis posterior […]
Last updated on April 5th, 2018 at 9:16 am
One of the most significant nerves that have a control over most of the movements related to the eye, which includes the constriction of the pupil, is the Oculomotor nerve. It is also responsible for keeping the eyelids open by innervating the muscles of the levator palpebrae superiors. (more…)
Last updated on March 16th, 2018 at 9:32 am
What are Cranial Nerves? Nerves which originate from the brain or the brainstem are referred to as the cranial nerves. Do keep in mind that nerves which originate from the spinal cord segments aren’t called cranial nerves. (more…)
Last updated on August 28th, 2018 at 5:34 am
What is the Corniculate Cartilage? The corniculate cartilage is made up of elastic cartilage in our body. Elastic Cartilages, also known as Yellow cartilages in the human body are primarily composed of the protein Elastin. These cartilages are built up of collagen fibers and plastic fibrous networks. These are also known as cartilages of Santorini. […]
Last updated on February 5th, 2018 at 6:30 am
