You find a bone that has a round head at one end, two large, smooth condyles at the other end, and a long ridge for muscle attachment on one side of the shaft. Based on your knowledge of bone markings, you identify it as which bone?
A. Radius
B. Tibia
C. Ulna
D. Femur
E. Fibula
Answer: D
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A drug called __________, taken during pregnancy, may result in infants being born with unformed arms and legs.
Fill in the blank(s) with the appropriate word(s).
The punching bag-shaped structure hanging down from the soft palate is called the ________
A) Uvula B) Frenulum C) Papillae D) Palatine tonsil
The humeroulnar, humeroradial, and proximal radioulnar joints are the three articulations present at which joint?
A. wrist B. elbow C. shoulder D. none of the above
When multiple presynaptic neurons release neurotransmitter at various locations onto the postsynaptic neuron at the same time, this results in
A. suprathreshold hyperpolarization. B. several action potentials. C. spatial summation. D. temporal summation.