6 As calcium is actively reabsorbed into the sarcoplasmic reticulum, its concentration at the myofilaments decreases 12. Fill in the blanks using the phrases in the word bank below: Prior to muscle excitation, there is a greater concentration of Na+ and there is a greater concentration of K+ stimulus is delivered, protein “doors" open and the depolarization of the plasma membrane. Almost as soon as the depolarization wave begins, a repolarization wave follows. This occurs as restores the When the neural initiating Repolarization of the resting cell membrane. The is (are) reestablished by which move(s) K+ back into the cell and Na+ back out. WORD BANK: • Na+ diffuses out of the cell • Outside the cell • Ion concentrations • Electrical conditions • Sodium-potassium pumps K+ diffuses out of the cell Na+ diffuses into the cell • K+ diffuses into the cell • Inside the cell

6 As calcium is actively reabsorbed into the sarcoplasmic reticulum, its concentration at the myofilaments decreases 12. Fill in the blanks using the phrases in the word bank below: Prior to muscle excitation, there is a greater concentration of Na+ and there is a greater concentration of K+ stimulus is delivered, protein “doors" open and the depolarization of the plasma membrane. Almost as soon as the depolarization wave begins, a repolarization wave follows. This occurs as restores the When the neural initiating Repolarization of the resting cell membrane. The is (are) reestablished by which move(s) K+ back into the cell and Na+ back out. WORD BANK: • Na+ diffuses out of the cell • Outside the cell • Ion concentrations • Electrical conditions • Sodium-potassium pumps K+ diffuses out of the cell Na+ diffuses into the cell • K+ diffuses into the cell • Inside the cell

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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