The head of the femur articulates with the os coxae at a curved surface called the ________.
Fill in the blank(s) with the appropriate word(s).
acetabulum or lunate surface
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A skydiver's parachute fails to deploy. After some struggle, his reserve chute deploys in time to save his life. However, his landing is harder than normal and he feels his knee slightly hyperextend. He shakes it off and goes about his normal routine. Later that day he begins experiencing knee pain. Two days later he notices that his knee "pops" when he crouches and soon discovers he has dislocated his femur on the knee. What muscle was likely injured initially?
A. Popliteus B. Tensor fasciae latae C. Soleus D. Sartorius E. Quadriceps femoris
Nystagmus is a normal response that occurs along with
A. linear acceleration. B. rotational movements. C. horizontal acceleration. D. vertical acceleration. E. any of these movements.
What is the basic distinction between an alveolar duct and an alveolar atrium?
A. Their shape B. Their epithelial type C. Their size D. Their function E. The presence or absence of cilia
The stroke volume is the ________.
A. volume of blood pumped from both ventricles per heartbeat B. volume of blood pumped from each ventricle in one minute C. volume of blood pumped from each ventricle per heartbeat D. volume of blood pumped from both ventricles in one minute