The protective layer of connective tissue surrounding the brain and spinal cord is called the __________
Fill in the blank with correct words.
Answer: Meninges (or singular meninx)
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The refractory period prevents action potentials from spreading back over the part of the membrane where the impulse has just passed
Indicate whether the statement is true or false
Which of the following is NOT an example of carrier-mediated transport?
active transport cotransport facilitated diffusion osmosis
In skeletal muscle, which of the following is not found in a thin myofilament?
A. Calcium receptors B. Titin C. Troponin D. Tropomyosin E. F actin
During quiet breathing,
A) only the internal intercostal muscles contract. B) inspiration involves muscular contractions and expiration is passive. C) inspiration is passive and expiration involves muscular contractions. D) both inspiration and expiration are passive. E) both inspiration and expiration involve muscular contractions.