What is the most unknown part of the body

Most women are not particularly fond of their uterus, as it is often a source of pain or problems, but it deserves a prized place on this list. It can be used to identify people who have an infection (such as meningitis), a bleed around the brain (hemorrhagic stroke), and other conditions. The CSF is produced and absorbed in an exquisite balance to maintain the correct pressure to surround and support the central nervous system (brain and spinal cord).Дoctors sample CSF by performing a procedure called a lumbar puncture-inserting a needle into the spinal cord and collecting some of the fluid.

It also works to provide nutrients and clear waste from the brain and spinal cord in a similar way to blood in other parts of the body. Cerebrospinal fluid (CSF) is produced in ventricles deep within the brain and circulates around the brain and spinal cord.Д¬SF has many functions, including protection, as it provides an area of shock-absorption for the brain when the skull is hit or shaken. 8 Cerebrospinal FluidДЄmid all the flesh, blood, and guts in the human body is this beautiful, crystal-clear fluid. The patella increases the effective force with which the knee can extend by 33 to 50 percent due to the increased leverage around the joint. Your вЂњquadsвЂќ are a group of four muscles, hence the name. The kneecap is tethered to the shinbone (tibia) by a strong tendon, and the top of the kneecap is connected to a major muscle in the quadriceps group.

The main function of the kneecap, technically called the patella, is extension of the knee (straightening the leg). However, kneecaps are much more than built-in, rudimentary kneepads! If you have ever fallen on your knees or had that sickening feeling of sliding a chair under a desk and colliding with an unfortunately placed table leg, youвЂ™ve probably been grateful for their protection. You can also watch the medical student above try it. This tells your brain you are spinning, but your eyes and cerebellum donвЂ™t agree, so you feel completely off-balance, and your vision is distorted. This happens because your VS has stopped moving, but the fluid inside the loops has enough momentum to keep moving. They will feel dizzy and struggle to walk in a straight line, and if you look closely, you will see their eyes flicking from side to side (a phenomenon called nystagmus). So, what happens when we spin in a circle and get dizzy? Ask a friend to spin in a tight circle, either on their feet or in an office chair, for over 30 seconds and then suddenly stop and try to focus on a fixed point. When you stop moving (or accelerating) and keep your head in a particular spot, the effect of gravity on the weighted jelly tells your brain where you are in space. This lag bends the sensory hairs and sends a message to your brain about the direction your head is moving. When you move your head, the semicircular canals and maculae move, but the fluid and jelly lag behind. On top of the hairs is a jelly-like substance with tiny weights in it called otoliths. There are special areas called maculae (not to be confused with the maculae in the retinas) at the end of the tube loops which are covered with sensory hairs. The semicircular canals are three round tubes filled with liquid, which lie in different planes, enabling sensation of movement in all directions. The VS sits behind your eardrum, just next to the cochlea. The answer is the vestibular system (VS), a minuscule, complex setup comprised of three semicircular canals and two chambers in each inner ear. Ever wondered how you know where your head is in space? How you donвЂ™t get dizzy every time you nod or tilt your head? Or why you canвЂ™t walk in a straight line after spinning in a circle for a long time?

What is the most unknown part of the body