Thyroid hormone is a derivative of the amino acid ____________________
Fill in the blank(s) with correct word
tyrosine
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Muslim women who wear a burka (head covering) are protected from the sun's UV radiation. This could conceivably lead to which skeletal system disorder?
A. Osteomalacia B. Paget disease C. Osteoporosis D. Achondroplastic dwarfism
Answer the following statements true (T) or false (F)
1. The soleus is a synergist of the gastrocnemius during plantar flexion. 2. Muscles that help to maintain posture are often called synergists. 3. In order to propel food down to the esophagus, the pharyngeal constrictor muscles are used. 4. Plantar flexion at the ankle joint is accomplished by the tibialis anterior muscle 5. The arrangement of a muscle's fascicles determines its range of motion and power.
Which of the following would be an adequate stimulus for a mechanoreceptor?
A) pH B) cell stretch C) oxygen D) photon of light E) cold temperature
Natural analgesia occurs
a. when endogenous opiates bind to P-substance. b. when endogenous opiates bind to receptors on afferent pain fibers. c. when acute pain fibers are activated d. both (a) and (b) above. e. both (b) and (c) above.