Until it leaves the body, urine is held by the:
a. urethra
b. urinary bladder
c. ureter
d. nephron
b. urinary bladder
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With three seconds left on the clock, Mia breaks free and scores the winning goal. Of the muscles listed, select the one with the primary action in extending the leg for kicking.
A. Semimembranosus B. Sartorius C. Biceps femoris D. Tensor fasciae latae E. Quadriceps femoris
Which type of congenital heart defect most commonly affects children born with Down syndrome (trisomy 21)?
a. tetralogy of Fallot b. atrioventricular septal defect c. ventricular septal defect d. transposition of great vessels
_________ are small channels that allow materials to pass from one epithelial cell to another.
A) Tight junctions B) Gap junctions C) Desmosomes D) Hemidesmosomes
What is found in an intestinal villus?
A. brush border B. digestive enzymes C. blood capillaries and a lacteal D. Peyer patches and a lacteal