A football player was tackled and fell onto the ball on his left side. He then complained of rib pain and exhibited signs of shock. What was a likely consequence of his fall?
A. Peripheral edema
B. Hodgkin disease
C. Lymphadenopathy
D. Ruptured spleen
E. Elephantiasis
D. Ruptured spleen
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Cyanide is a molecule that binds irreversibly to and acts as an allosteric inhibitor for one of the cytochromes in the electron transport chain. Which of the following molecules would you see increased in the cells of a person suffering from cyanide poisoning?
A. NAD+ B. Pyruvate C. Glucose D. ATP E. NADH
In this sagittal view of the eye, which number indicates the pupil?
A. 7 B. 8 C. 4 D. 5 E. 6
Axons from retinal ganglion cells form the optic nerve
Indicate whether the statement is true or false
During intense exercise, fatigue of skeletal muscle occurs because of:
A. depletion of ATP within the skeletal muscle fiber B. Ca++ overload by mitochondria within the muscle fiber C. inhibition of actin-myosin interaction D. stimulation of Ca++ release the SR E. increased pH within the muscle fiber