What muscle is primarily responsible for unlocking the tibia when flexing the knee?
a. Sartorius
b. Biceps femoris
c. Popliteus
d. Plantaris
ANS: C
Even though the "unlocking" mechanism for tibial medial rotation is fairly passive, based on the origin and insertion of this muscle, this muscle's primary force is given to medial rotation or unlocking of the tibia.
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You are assessing a young male patient who was assaulted with a baseball bat and struck once on the left upper quadrant of the abdomen. You would recognize the patient as having Kehr's sign when he makes what statement?
A) "I am having a hard time breathing!" B) "My belly hurts really bad…" C) "My left shoulder is killing me!" D) "It really hurts for me to breathe…"
Drugs that are in a patient's system when local anesthetics are administered are referred to as ________
Fill in the blank(s) with correct word