Arthrogenic muscle inhibition (AMI) may result from any change in joint homeostasis despite having no direct injury to the muscles surrounding the injured joint. Which of the following can cause AMI?
a. Pain
b. Effusion (joint swelling)
c. Muscle weakness
d. Central activation failure
e. All of the above
Answer: e. All of the above
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A patient has a variety of cellular problems, including proteins in the endomembrane system going to the wrong locations, and no synthesis of estrogen or testosterone. Identify the organelle-symptom pair that is defective.
A. The protein location problem is associated with the Golgi apparatus and the lack of testosterone production is an issue with the rough ER. B. A problem in the rough ER is responsible for the protein location problem, and a problem in the smooth ER is responsible for the estrogen and testosterone problem. C. A problem in the smooth ER is responsible for the protein location problem, and an issue in the Golgi apparatus is responsible for the production of estrogen and testosterone. D. Protein sorting normally occurs in the peroxisomes and is not functioning properly, and a damaged rough ER cannot produce estrogen and testosterone.
The bones that surround and protect the brain are collectively called the
a. spinal cord. b. vertebral column. c. pelvic girdle. d. cranium.
What vessels transport oxygenated blood from placenta to fetus?
a. umbilical arteries b. umbilical veins c. ductus venosus d. foramen ovale e. ductus arteriosus
Which is the largest division of the geologic time scale?
a. eon b. era c. epoch d. period e. millennium