2. The excretory system is a passive
biological system that removes excess,
unnecessary materials from
an organism and prevent damage to the
body
•responsible for the elimination of
the waste products
of metabolism
6. Kidney
The kidney is a reddish brown,
bean shaped organ which is
present in each of the sides of
the Vertebral column .
7. Skin
The skin is another part of the
excretory system: it eliminates
sweat, that helps cool the body
and regulate the concentration
of salt
8. Renal artery
normally arise off the side of
the abdominal aorta, immediately
below the superior mesenteric
artery, and supply the kidneys with
blood.
9. Adrenal gland
Are endocrine glands that sit at the top
of the kidneys the right adrenal gland is
triangular shaped, while the left adrenal
gland is semi lunar shaped. They are
chiefly responsible for
releasing hormones in response to
stress
10. Renal vein
The renal veins are veins that drain
the kidney. They connect the
kidney to the inferior vena cava.
They carry the blood purified by
the kidney.
11. Vena cava
vein that carries de-
oxygenated blood from the
lower half of the body into
the right atrium of the heart.
12. urethral sphincter
refers to one of two muscles used
to control the exit of urine in
the urinary bladder through the
urethra.
13. Ureter
Are muscular ducts that propel
urine from the kidneys to
the urinary bladder. In humans, the
ureters arise from the renal pelvis
on the medial aspect of each kidney
before descending towards the
bladder.
14. Urinary bladder
The urinary bladder is the
organ that collects urine
excreted by the kidneys prior to
disposal by urination. It is a
hollow muscular , and sits on
the pelvic floor
15. Urethra
In anatomy is a tube which
connects the urinary bladder to
the outside of the body
16. Dorsal aorta
The dorsal aortae give branches to
the yolk-sac, and are continued
backward through the body-stalk as
the umbilical arteries to the villi of
the chorion.
