From the anterior wall of rectum, we can palpate the following structures, EXCEPT （）.

单项选择题Which structure doesn’t belong to stomach （）.

A．angular notch
B．pyloric antrum
C．bed of stomach
D．pyloric canal
E．cardia

单项选择题Which nerve does come from lumbar plexus （）.

A．sciatic nerve
B．inferior gluteal nerve
C．obturator nerve
D．pudendal nerve
E．median nerve

单项选择题The following veins are the tributaries of inferior vena caval, EXCEPT （）.

A．hepatic vein
B．renal vein
C．left common iliac vein
D．right testicular vein
E．hepatic portal vein

单项选择题The second constriction of ureter lies at （）.

A．prostatic portion of urethra
B．membranous part of urethra
C．where it crosses superior aperture of lesser pelvis
D．where it pierces into the unrinary bladder
E．internal urethral orifice

单项选择题The superior extremity of kidney is in neighborhood of （）.

A．deiaphragm
B．superior portion of duodenum
C．head of pancreas
D．suprarenal gland
E．pylorus