Which of the following facial muscles raise(s) the corners of the mouth for smiling and laughing?
A. Mentalis and platysma
B. Depressor anguli oris
C. Orbicularis oris
D. Buccinator
E. Zygomaticus major and minor
Answer: E
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The kidneys are covered by a layer of connective tissue called the ________
A) Renal pelvis B) Renal capsule C) Renal hilum D) Renal sinus
Which protein joins together the Okazaki fragments of DNA in the lagging strand?
A)the replication fork B)RNA C)DNA polymerase D)the leading strand E)DNA ligase
Which of the following statements regarding the migrating motor complex is true?
A. It allows a bolus to move down the esophagus. B. It churns and mixes a bolus with gastric juices. C. It milks the chyme toward the colon. D. It propels pancreatic juice down the pancreatic duct. E. It churns and mixes residue in the descending colon.
What lubricates synovial joints?
A. Synovial fluid B. Fibrocartilage C. Fibrous connective tissue D. Ligaments