In response to action potentials arriving along the transverse tubules, the sarcoplasmic reticulum releases
A) acetylcholine.
B) sodium ions.
C) potassium ions.
D) calcium ions.
E) hydrogen ions.
Answer: D
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Mark eats a very big meal in the evening. After the meal his wife would like him to help clean up, but Mark explains that he is "too tired" and promptly goes to sleep. What seems to be his problem?
What will be an ideal response?
Read the following passage and answer the accompanying questions. Rupture of the cruciate ligament is a common injury to the stifle joint of dogs. The cranial cruciate ligament is more commonly ruptured than the caudal ligament. Rupture of either cruciate ligament may be accompanied by rupture of the medial collateral ligament and damage to the medial meniscus. Acute lameness is the most common
sign of a cruciate ligament rupture, which will decrease in severity over time. Chronic lameness and osteoarthritis may result if the stifle joint is not stabilized via surgery. The primary sign of a cruciate ligament rupture is: A) a tear in the caudal cruciate ligament B) a tear in the cranial cruciate ligament C) acute lameness D) anorexia
Which one of the following is NOT a feature of chronic obstructive pulmonary disease (COPD)?
A) Most patients have a genetic predisposition to COPD. B) Dyspnea becomes progressively more severe. C) Frequent pulmonary infections are common. D) Most COPD victims are hypoxic. E) Most patients have a history of smoking.
In hemopoiesis, granulocytes such as neutrophils are formed from the ________ line.
A. lymphoid B. monocyte C. myeloid D. killer cell