The figure given below shows a part of a nephron. Answer the questions that follow: The figure given below shows a part of a nephron. Answer the questions that follow:
Draw a neat, labelled diagram of the urinary system of man.
Topic: Urinary system — diagram
Answer
Your diagram must show: • TWO KIDNEYS, bean-shaped, the left slightly higher than the right • RENAL ARTERY entering and RENAL VEIN leaving each kidney at the hilum • the AORTA and INFERIOR VENA CAVA running vertically between them • TWO URETERS running down from the kidneys • the URINARY BLADDER into which they open • the URETHRA leading from the bladder to the outside
Labels required: kidney, renal artery, renal vein, aorta, inferior vena cava, ureter, urinary bladder, urethra.
THE ORDER MUST BE RIGHT and is where marks are lost: KIDNEY → URETER → BLADDER → URETHRA. Two ureters (one per kidney) but only ONE urethra.
The spelling distinction costs marks every year: URETER carries urine from kidney to bladder; URETHRA carries it from bladder to outside.
Two details that show care: the kidneys are BEAN-SHAPED with the concave side facing inward, where the vessels and ureter enter; and the artery and vein connect to the aorta and vena cava running between them.
Draw large, in pencil, with labels outside on straight ruled lines.