Which one of the following structures arises from aortic arch? ()
A. Left subclavian artery
B. right common carotid artery
C. left axillary artery
D. right subclavian artery
E. vertebral artery
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The left gastric artery comes from ()
A. common hepatic artery
B. celiac trunk
C. gastroduodenal artery
D. proper hepatic artery
E. superior mesenteric artery
Concerning the characteristics of vein, which one of the following statements is wrong? ()
A. The wall is thin
B. The pressure is lower
C. vein is lesser numerous than the artery
D. it has venous valves
E. superficial vein is located in the subcutaneous layer
Concerning the thoracic duct, which one of the following descriptions is correct? ()
A. ascend behind the thoracic aorta
B. it is formed by the union of right and left lumbar trunk
C. it is formed by the union of right and left intestinal trunk
D. it is receive lymph about 3/4 of the whole body
E. it is formed by the union of right and left jugular trunk
Which one of the following structures is a part of the fibrous tunica of the eyeball? ()
A. the iris
B. the ciliary body
C. the choroid
D. the retina
E. the cornea
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