Altered Cellular and Tissue Biology: Environmental Agents

Altered Cellular and Tissue Biology: Environmental Agents

Altered Cellular and Tissue Biology: Environmental Agents

10- Mr. Epperson was lifting a heavy piece of furniture when he experienced crushing pain in his chest, began sweating heavily, and was nauseated. His wife drove him to the hospital, where he was diagnosed with a myocardial infarction (heart attack) and given intravenous drugs to dissolve a clot that was obstructing a major coronary artery. After his hospitalization, Mr. Epperson’s doctor told him that some of his heart muscle had died. 

Match the questions with the correct answers regarding the cell injury in Mr. Epperson’s heart.

a. Mr. Epperson’s myocytes were initially injured by _______ (______)

b. Ischemia injures cells faster than _______ alone. (______)

c. Reversible myocyte swelling was caused by lack of _______ to fuel ion pumps. (______)

d. Irreversible myocyte injury occurred when mitochondrial and plasma _______ were disrupted. (______)

e. Dissolving the blood clot rescued some myocytes by providing _______ for generating ATP. (______)

f. Dissolving the blood clot damaged some myocytes by _______ injury. (______)

i. hypoxia

ii. sodium

iii. oxygen

iv. ATP

v. ischemia

vi. necrosis

vii. reperfusion

vii. membranes

ix. apoptosis