This document is a summary of the excretory system, herewith there are diagrams representing certain processes aswell as helpful extra facts and definitions. Furthermore all sections of the excretory system are covered in detail.
STRUCTURE EXTERNAL: FOUND:
bean-shaped, dark red
inner border = concave= hilum = where ureter, renal blood abdominal cavity below the
vessels and nerves enter and leave kidney diaphragm
surrounded by 3 layers next to the posterior wall on
renal capsule(tough fibrous) = surface= prevent infections either side of vertebral
middle layer of adipose tissue = hold kidney in place and column
cushions it kept in position by being
outer layer of fibrous connective tissue = renal fascia= anchors attached to thin layer of
the kidney to the surrounding structures connective tissue=
peritoneum = large renal
Date:
vessels16 October
, EXCRETORY SYSTEM
Kidneys
STRUCTURE MICROSCOPIC: NEPHRON:
million tiny, tightly packed, tubular units = nephrons
found in cortex and medulla areas Renal corpuscle found in
makeup bulk of the kidney renal cortex made up of:
responsible for removing waste matter from blood = form = Bowman's capsule
functional unit of the kidney = glomerulus- cluster of
capillaries
Renal tubule found in cortex
and medulla made up of:
= proximal convoluted tubule in
the cortex
Date:
= loop 16 October
of Henle- medulla
= distal convoluted tubule in the
cortex
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