The outermost layer of the digestive tract, which is composed of a thin layer of areolar tissue and simple squamous epithelium, is called the ________.
A. mucosa (mucous membrane)
B. lumen
C. serosa (mesentery)
D. submucosa
E. muscularis externa
Answer: C
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Which of the following is often called the pacemaker of the heart?
A) Purkinje fibers B) sinoatrial (SA) node C) atrioventricular (AV) bundle (bundle of His) D) atrioventricular (AV) node
The ________ is not part of the tibiofemoral joint
A) tibial (medial) collateral ligament B) posterior tibiofibular ligament C) anterior cruciate ligament (ACL) D) lateral meniscus E) fibular (lateral) collateral ligament
Consider the following five terms. Which term does not belong with the other four terms?
A. glucose B. lactose C. disaccharide D. sucrose E. maltose
Which of the following might result from embarrassment?
A. Pallor B. Tension lines C. Erythema D. Jaundice E. Cyanosis