The hip bone is composed of three separate bones. The first to appear on a series of axial CT images arranged in descending order is the ____________________.
Fill in the blank(s) with the appropriate word(s).
ilium
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The socially abused drug ____________________ blocks the reuptake of the neurotransmitter dopamine at presynaptic terminals
Fill in the blank(s) with correct word
All but which of the following statements about autorhythmic myocardial cells are correct?
a. They do not maintain a stable resting membrane potential. b. They have special ion channels in their sarcolemma. c. They are the first myocardial cells to contract. d. They make up the intrinsic cardiac conduction system.
__________ is the major hormone secreted by the pineal gland and is involved with circadian and seasonal cycles
Fill in the blank with the correct word.
A skeletal muscle cell contains hundreds to thousands of ________, which are complex organelles; they are cylindrical in shape-about 2 micrometers in diameter and as long as the cell.
A. microfilaments B. T-tubules C. sarcolemma D. myofibrils E. sarcomeres