SMALLEST BONE

STAPES or STIRRUP BONE

- The stapes, or stirrup bone, one of the the three auditory ossicles in the middle ear, measure a tiny 2.6 - 3.4 mm ( 0.1 - 0.13 in ) in length and weight from 2 to 4.3 mg (0.03 - 0.066 grains ). The strapedius, the muscle that controls the stapes,is less that 0.127 cm ( 0.05 in ) long and is the smallest muscle in the human body.

LARGEST SESAMOID BONE ( AMAZING BODY )

PATELLA or KNEE CAP


- The largest sesamoid bone in the body is the patella or knee cap. Most other sesamoids are only a few millimetres in diameter and are shaped like a sesame seed, hence the name. they are usually formed in tendons close to joints or where the tendons angle sharply around bone. Their function is to take compression when a tendon is going around a joint,as when kneeling.

LONGEST MEMORY OF A CELL ( AMAZING BODY )

LYMPHOCYTES


- Lymphocytes are the type of white blood cell produced by the immune system.The largest of the lymphatic tissue is the spleen. Each successive, generation of lymphocytes produced contains the 'memory' of previous illnesses that the body has fought throughout its lifetime.

MOST ABUNDANT CELL ( AMAZING BODY )

RED BLOOD CELLS


-The body contains around 30 Billion red blood cells ( erythrocytes ) with approximately 5 x 1000000000000 in every litre of blood ( 8.75 x 1000000000000 in every pint ). Red blood cell s are produced in bone marrow, and their function is to carry oxygen and carbon dioxide around the body.

LARGEST MUSCLE ( AMAZING BODY )

THE GLUTEUS MAXIMUS OR BUTTOCK MUSCLE

- The bulkiest of the 639 named muscles in the human body is usually the gluteus maximus or buttock muscle, which extends the thigh, however,in pregnancy,in the uterus can increase from about 30 g ( 1 oz ) to over 1 kg ( 2 lb 3 oz ) in wieght.

LARGEST ARTERY ( AMAZING BODY )

THE AORTA

-The aorta is 3 cm. ( 1.18 in ) in diameter where it leaves the heart. By the time this artery devides at the level of the fourth lumbar vertebra, it is about 1.75 cm
( 0.68 in) in diameter.

Aorta- an artery that conveys blood directly from the heart to other artery.

MOST ACTIVE MUSCLE ( AMAZING BODY )

EYE


-It has been estimated that the musclesof the eye move more than 100,000 times a day.Many of thiese rapid eye movements take place during the dreaming phrase of sleep.