The ______________ is (are) formed when the vertebral arteries unite at the base of the brain.
A. subclavian arteries
B. common carotid arteries
C. external carotid arteries
D. internal carotid arteries
E. cerebral arterial circle (circle of Willis)
Ans: E. cerebral arterial circle (circle of Willis)
Anatomy & Physiology
You might also like to view...
A male rabbit is called a:
A) kit B) kindling C) ridge D) buck
Anatomy & Physiology
The insertion of a muscle
a. is only associated with smooth muscle b. contains muscle spindles c. is the movable end of attachment. d. source of development in the fetus. e. serves the same function as the origin
Anatomy & Physiology
How many pulmonary veins are there?
a.four b. three c. one d. two
Anatomy & Physiology
which is a complex of muscles that encircles the mouth?
a) orbicularis oris b) mentalis c) occipiatlis d) orbicularis oculi
Anatomy & Physiology