Rigor mortis occurs when Ca2+ links actin and the myosin globular head together in a rigor complex
Indicate whether the statement is true or false
F
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Propranolol hydrochloride (Inderal) is a beta-adrenergic blocker often used as an antianginal, antiarrhythmic, and antihypertensive drug. Before giving Inderal to a patient, what should the nurse assess?
What will be an ideal response
When the sympathetic system is activated under conditions of fear or stress, it simultaneously triggers a surge of adrenomedullary catecholamine release
a. True b. False Indicate whether the statement is true or false
When calcium ion binds to troponin
A) Tropomyosin moves out of the groove between the actin molecules B) Actin sites on the myosin are exposed C) Actin heads will bind to myosin D) Muscle relaxation occurs E) Myosin shortens
Olfactory receptors located in the superior region of the nasal cavity are stimulated when airborne molecules are inhaled and dissolved in the mucus covering.
Answer the following statement true (T) or false (F)