If a person begins to sweat upon entering a hot room but continued sweating is able to keep the body temperature stable, which of these best describes her condition?
A. She is not using energy to maintain a constant temperature.
B. She is using a positive feedback mechanism.
C. She is in a steady state.
D. Two of the choices are correct.
E. She is in an equilibrium state.
Answer: C
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Which structure allows the action potential to travel deep into the interior of the cell to each contractile organelle?
A) Myofibril B) T-tubule C) Sarcolemma D) Sarcoplasm
Cell junctions in contractile cells are called ________, which consist of two components: ________ and ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a type of secretion in which some cytoplasm is lost with the product?
A) holocrine B) merocrine C) apocrine D) mucus E) serous
Which tract is NOT part of the extrapyramidal motor tracts?
A. Rubrospinal B. Reticulospinal C. Vestibulospinal D. Corticospinal