Which of the following cells have the most mitochondria?
A. Unitary smooth muscle cells
B. Multiunit smooth muscle cells
C. Cardiomyocytes
D. Slow oxidative (SO) fibers
E. Fast glycolytic (FG) fibers
Answer: C
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Small areas of the myocardium contracting chaotically is called
A. bradycardia. B. tachycardia. C. flutter. D. fibrillation.
A patient was admitted to the hospital with chest pains. On admission, his pulse was 110 and blood pressure was 96/64. According to his history, his normal pulse rate is usually between 80 and 88 and his blood pressure runs from 120/70 to 130/80. Explain why these changes in BP and HR occur.
What will be an ideal response?
The paranasal sinuses, together with other structures of the upper respiratory tract,
A) are where a small percentage of gas exchange occurs. B) form part of the respiratory membrane. C) are involved in filtering, warming, and humidifying incoming air. D) provide a large area for gas exchange between air and circulating blood. E) are lined by a delicate simple squamous epithelium.
Which ligament of the coxal joint supports the inferior aspect of the joint?
A) iliofemoral ligament B) ischiofemoral ligament C) ligament of the head of the femur D) pubofemoral ligament