Organs
·
Kidney
Kidney
·
Ureter
Ureter
·
Bladder
Bladder
·
Urethra
Urethra
Kidney
Kidneys are reddish brown, bean shaped organs about,
11cm long 6cm wide, and 3 cm thick and 150g weight. Lying on the posterior
abdominal wall, one on each side of the vertebral column, and extend from the
12th thoracic vertebral to the 3rd lumbar vertebral.
11cm long 6cm wide, and 3 cm thick and 150g weight. Lying on the posterior
abdominal wall, one on each side of the vertebral column, and extend from the
12th thoracic vertebral to the 3rd lumbar vertebral.
Gross Structure of the Kidney
There are three area of the tissue which can be
distinguished, when a longitudinal section of the kidney is viewed with the
naked eye.
distinguished, when a longitudinal section of the kidney is viewed with the
naked eye.
a) A fibrous capsule,
surrounding the kidney
surrounding the kidney
b) The cortex is reddish brown
layer under the capsule and between the pyramids
layer under the capsule and between the pyramids
c) The medullar is the inner
most layer, consisting of pale conical –shape striations, the renal pyramids.
most layer, consisting of pale conical –shape striations, the renal pyramids.
The hilium is the concave medial border of the kidney
where the renal blood and lymph vessel and nerves enters. The renal pelvis is
the funnel – shapped structure which acts as a receptacle for the urine formed
by the kidney. It has a number of branches called calyces at its upper end,
each of which surrounds the apex of renal pyramid. Urine formed in the kidney
passes through a papilla at the apex of a pyramid into a lesser calyx, then
into a greater calyx before passing through the pelvis into the ureter.
where the renal blood and lymph vessel and nerves enters. The renal pelvis is
the funnel – shapped structure which acts as a receptacle for the urine formed
by the kidney. It has a number of branches called calyces at its upper end,
each of which surrounds the apex of renal pyramid. Urine formed in the kidney
passes through a papilla at the apex of a pyramid into a lesser calyx, then
into a greater calyx before passing through the pelvis into the ureter.