The "kissing muscle" that purses the lips is the
A) zygomaticus.
B) orbicularis oris.
C) buccinator.
D) levator labii.
E) procerus.
B
Anatomy & Physiology
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The net pressure gradient in the cardiovascular system is created by _____.
A. Blood viscosity B. Heart contraction C. Vasoconstriction D. Vasodilation
Anatomy & Physiology
____________ are substances that may excite or inhibit a motion or an action
Fill in the blank(s) with correct word
Anatomy & Physiology
Which of the following blood vessels receives blood directly from the right ventricle?
A. Inferior vena cava B. Right pulmonary vein C. Pulmonary trunk D. Superior vena cava E. Ascending aorta
Anatomy & Physiology
Which of the following organs is retroperitoneal?
A. pancreas B. ascending colon C. duodenum D. descending colon E. All of these organs are retroperitoneal
Anatomy & Physiology