The palmar venous arches drain into the ________, which is superficial and runs along the medial upper limb.
Considering the arterial supply to the brain, the basilar artery immediately gives rise to the ________ arteries.
A)are located within the fold of dura mater lying between the cerebral hemispheres.
B)fuse with the radial and ulnar veins.
C)travel a short distance inside the thoracic cavity to meet and merge with the external and internal jugular veins, forming the innominate vein.
D)combine to create the superior vena cava.
E)drain the posterior surface of the skull, descending within the transverse foramina of the cervical vertebrae.
Which of the following is a remnant of a short, muscular blood vessel that existed in the fetus?