Individuals who are engaged in repetitive hand movements such as typing or playing the piano may suffer wrist pain, especially during palmar flexion. All of the following are true concerning this condition except that it
A) is called carpal tunnel syndrome.
B) results from inflammation of the synovial tendon sheaths.
C) never causes muscle weakness.
D) results from inflammation of the carpal retinacula.
E) irritates the median nerve.
C
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You are a new pediatrician at an office where you've inherited cases from a previous doctor and are sitting down to go through case files. Today you'll be seeing Trevor, a toddler who has been diagnosed with a disease called megacolon. Back in medical school you learned that megacolon can be characterized by partial paralysis of the the nerves found within the wall of the GI system. Which of the following is likely to be among Trevor's symptoms?
A. Diarrhea B. Constipation and a swollen-looking belly C. Discolored feces due to lack of Bile D. Abnormal blood glucose regulation E. Incomplete denaturation of ingested proteins
The thoracic duct originates from an expanded chamber called the
A) thoracic sinus. B) cisterna chyli. C) thoracic trunk. D) hilum. E) thoracic ventricle.
Special sensory receptors differ from simple receptors in that
A) each can be stimulated by many different types of stimuli. B) they are restricted in the stimuli to which they respond. C) they are found in more locations on the surface of the body. D) they are surrounded by accessory structures that enhance receptor sensitivity. E) All of the answers are correct.
How developed is the sarcoplasmic reticulum in cardiac muscle?
a. non-existent b. poorly developed c. moderately developed d. well developed e. heavily developed