Intra-thoracic pressure increases while holding breath with the epiglottis closed and making a muscular contraction, stopping the flow of blood back to the heart and to the brain, which increases blood pressure. This is termed:
A. hypertrophy
B. atrophy
C. Marfan syndrome
D. Valsalva effect
Answer (2)
The situation described relates to the ValSalva Effect, which involves an increase in intra-thoracic pressure when holding one's breath with the epiglottis closed. This maneuver can temporarily impede blood flow back to the heart, resulting in increased blood pressure. It is commonly seen in scenarios such as heavy lifting or during specific medical evaluations. ;
The Valsalva effect is a physiological response characterized by increased intra-thoracic pressure from holding one's breath with the epiglottis closed. This maneuver temporarily restricts venous return to the heart, resulting in increased blood pressure. The correct answer to the student's question is D. Valsalva effect.
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