22 INTERESTING FACTS ABOUT HUMAN ANATOMY

1.  Men have erections every hour and half while sleeping.

2.  The small intestine has an average length of 20-23 feet.

3.  Every day the average person sheds 60-100 strands of hair.

4.  Every minute, 300million cells in your body die.

5.  You are more likely to have a bad dream in a cold room.

6.  Your body produces 300billion new red blood cells each day.

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7.  Tongue prints, like thumb prints are all unique.

8.  You need to lose about 50% of your hair to begin to even give off the appearance of balding.

9.  All babies start off with blue eyes.

10.                   The surface area of Lungs is roughly 750 Sq.ft or a nice-sized apartment with a room for relaxing and walk-in closet.

11.                   Your body uses 43 muscles to frown.

12.                   When you wake up, you’re 1cm taller than you will be when you go to bed.

13.                   With 52 of them, feet account for one quarter of your entire body’s bones.

14.                   You could remove the stomach, the spleen, one kidney, 80% of the intestine and 75% of liver and still be able to survive.

15.                   Nerve impulses to and from the brain travel as fast as 170miles per hour.

16.                   Over the course of an average lifespan, a person will have created two pools worth of saliva.

17.                   The nose can remember 50,000 different scents.

18.                   Approximately every 27 days you shed and regrow outer skin cells.

19.                   It only takes 17muscles to smile.

20.                   It is estimated that there are 60,000 miles of blood vessels in the human body.

21.                   The average person farts 14 times a day

22.                   For about 30 minutes, every person on earth was a single, solitary cell.

HOW TO CONTROL SLEEP

How do i control sleep,in order to increase my productivity- you might ask...

Here are some helpful tips:

U need to develop biphasic sleeping habits. You will gain more energy and sleep less.

Take a 2 hour nap at about 5 pm everyday. Then sleep at about 12 and wake up at four.

You will need a couple of weeks for your body to adapt to the new sleep schedule but after you adapt.  You will sleep less and read more. Or whatever you choose to do with your extra time.

You need 8hrs of sleep per day to fully recharge your batteries. Anything less than that you not be at 100% effectiveness (although functioning). So unless you get rid of some of your daily activities, cutting on your sleep is only going to make it worse because your mind won't be at its full potential.
Of course, many people who only sleep 4hrs per day (everyday) will tell you that they "feel" perfectly fine, while deep down they don't.

And to end it you can't cheat nature...More Sleep, More productivity

LUMBOSACRAL | SACRAL PLEXUS

This the sacral segment of the lumbosacral plexus and it is inferiorly positioned when compared to the lumbosacral plexus.It lies on the Piriformis muscle in the posterior aspect of the Pelvic floor. The Hypogastric vessels and Ureter as well as the Pelvic colon are placed anteriorly to the Sacral plexus. A Sacral plexus is formed by anterior root of the spinal segment L4, L5, S1, S2 and S3. Each of these roots divide into anterior and posterior divisions; such that all posterior divisions L4 to S2 will unite to form common Peroneal nerve.

All the anterior divisions will unite to form the Tibial nerve. Normally, the Tibial nerve is bigger than the common Peroneal nerve. At a distance around the distal half of the thigh in about 60% of cases the common Peroneal nerve fuses with the Tibial nerve to link the Sciatic nerve- this is by the biggest nerve in the body. The posterior division of L4, L5, and S1 each sends out a nerve twig that unite to form the Superior Gluteal nerve that is distributed after, it passes above the Piriformis muscles through the greater Sciatic foramen to innervate the Gluteus medius, Gluteus minimus and the Tensor Fascia Latae muscles. Each of L4, L5, S1 and S2 will send out a nerve twig from their posterior division to form the inferior Gluteal nerve which supplies the Gluteus maximus muscle (mostly the inferior gluteal nerve is from L5, S1, S2).

Posterior Cutaneous nerve of the thigh is formed by the union of the nerve twig from the posterior division of L5, S1 and also form both the anterior and posterior division of S2.

Nerve to Quadratus Femoris is formed by union of nerve twigs from anterior divisions of L4, L5, S1.

Nerve to Obturator Internus and Superior Gemellus is formed by nerve twigs from anterior divisions of L5, S1, S2. From the posterior division of S2 and anterior division of S3 we have Perforation nerve of thigh while the anterior division of S2 and posterior division of S3, we have Pudendal nerve.

LOWER EXTREMITY | LUMBOSACRAL PLEXUS

This is that part of the body which extends from the buttock to the foot. It is made up of the following region as arranged supero-inferiorly i) Guteal region ii) Hip joint iii) Thigh iv) Knee joint v) Leg vi) Ankle region vii) Foot region
Principally, the lower extremity consist of the following structure the skin; muscles; bones; neurovascular bundles which are the artery, vein and nerves. The spaces also found in the lower extremity which are located in designated planes include
1) Femoral triangle/Scarpar's trigone
2) Adductor's canal/ John Hunter's canal
3) Osteoaponeurotic openings
4) Popliteal fossa

LUMBOSACRAL PLEXUS | this is the collection of nerves that serves to mediate and to which provision of innervation to the lower extremity is anchored. In broad sense, there is actually two plexus merge together. Seperately the LUMBOSACRAL consists of
Lumbar plexus and Sacral plexus.

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