This organ has an extra layer of muscle
A) Colon B) Spleen C) Stomach D) Liver
C
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A person having valve replacement surgery is reviewing the cardiac cycle. Which valve has to function at maximum level to ensure that oxygenated blood moves through the general circulation?
A) Mitral B) Pulmonary C) Aortic D) Tricuspid
Which muscle is the prime mover for sticking your tongue out?
A. Buccinator B. Mentalis C. Hyoglossus D. Masseter E. Genioglossus
Which is not one of the three common structural types of synapses?
A. Axoaxonic B. Axonucleic C. Axosomatic D. Axodendritic
The esophagus
A. secretes digestive enzymes from its mucosa. B. is located anterior to the trachea. C. opens to the stomach at the pyloric sphincter. D. contains both smooth and skeletal muscle fibers. E. is lined with pseudostratified ciliated columnar epithelium.