Which of the following is true concerning the heart conduction system?
a. Action potentials pass slowly through the ventricular wall.
b. Action potentials pass slowly through the atrioventricular bundle.
c. Action potentials pass slowly through the Purkinje fibers.
d. Action potentials pass slowly through the atrioventricular node.
d. Action potentials pass slowly through the atrioventricular node.
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The fibrocartilage pad between the medial condyle of the femur and the medial condyle of the tibia is called the __________.
A. anterior cruciate ligament (ACL) B. posterior cruciate ligament (PCL) C. infrapatellar bursa D. medial meniscus E. lateral meniscus
A person picks up a heavy suitcase in order to estimate its weight and reflexively drops it. Which of the following receptors has initiated this reflex?
A) lamellae corpuscle B) free nerve ending C) tendon organ D) bulbous corpuscle
A foreign microorganism that may cause disease in humans is called a(n)
A) pathogen. B) antigen. C) antibody. D) pathology. E) plaque.
The four primary tissue types are
A. epithelial, connective, muscle, and nervous. B. epithelial, cartilage, muscle, and brain. C. connective, epithelial, skin, and blood. D. bone, skin, blood, and muscle. E. glands, bone, lungs, and kidney.