Alexandria, a sprinter, experienced thigh pain during the start of her last race. Within 48 hours of the race, she noticed extensive bruising on the back of her thigh extending into the back of the knee and has difficulty rising from a seated position and flexing her knee. Bending at the waist generates more pain. Which muscle is likely injured?
A. Popliteus
B. Gluteus maximus
C. Biceps femoris
D. Iliopsoas
E. Gastrocnemius
Answer: C
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a. epithelial tissue b. connective tissue c. muscle tissue d. nervous tissue
In response to stress, the adrenal medulla releases ________, which has the effect of increasing heart rate and blood pressure.
Fill in the blank(s) with the appropriate word(s).
The ridge that is visible externally along the midline of the scrotum is called the
A. raphe. B. perineum. C. tunica albuginea. D. septum. E. scrotal cord.
What does ventilation-perfusion coupling refer to?
A. The air flow to the lung must be greater than the blood flow to the lung. B. The air flow to the lung must be less than the blood flow to the lung. C. The air flow to the lung must match the blood flow to the lung. D. The air flow to the lung must be greater than or less than but not equal to the blood flow to the lung.