During the absolute refractory period, the voltage-gated Na+ channels are not capable of opening again in response to another triggering event
Indicate whether the statement is true or false
T
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Intercalated discs contain both desmosomes and gap junctions.
Answer the following statement true (T) or false (F)
During ventricular systole, the
A) atria are contracting. B) blood is entering the ventricles. C) AV valves are closed. D) pressure in the ventricles remains constant. E) pressure in the aorta remains constant.
Use the following key to determine the best answer.A. First item is greater than the second item.B. First item is less than the second item.C. First item is equal or nearly equal to the second item.(1) Alveolar pressure during inspiration(2) Alveolar pressure during expiration
Fill in the blank(s) with the appropriate word(s).
Which of the following muscles of the back has its origin on the occipital bone?
A) trapezius B) rhomboideus major and minor C) infraspinatus D) teres major