Afterload is the pressure that the heart must work against to eject blood during systole (ventricular contraction). Afterload is proportional to the average arterial pressure. [1] . As aortic and …

2024年7月2日 · The terms preload and afterload are used to describe the blood volume present in your heart at any given time. The preload refers to the amount of blood already in your …

Afterload can be thought of as the "load" that the heart must eject blood against. In simple terms, the afterload of the left ventricle is closely related to the aortic pressure. The afterload on …

後負荷 (afterload)在心室收縮過程中, 心室肌肉所需對抗的阻力，主要由主動脈壓、肺動脈壓來決定. 進一步言, 會影響" 舒張末期容積 "的生理因素和疾病主要包括：由靜脈回流心房的血液容量, …

2023年4月24日 · The afterload of any contracting muscle is defined as the total force that opposes sarcomere shortening minus the stretching force that existed before contraction. …

后负荷，为医学和生理学名词，是指肌肉在收缩后受到的负荷。 与之相对的是 前负荷。 在肌肉开始收缩时， 肌张力 不断增大，但无 长度收缩，当张力达到后负荷之前，肌肉为 等长收缩，当 …

Afterload = left ventricular wall tension required to overcome resistance to ejection (impedance to ejection of blood from the heart into the arterial circulation). developed as ventricular muscle …

2019年7月13日 · Cardiac afterload is a semiquantitative composite assessment of a determinant of cardiac output. Afterload is the force again which the heart pumps to expel blood into the …

The afterload on the heart is all about arterial pressure, or the pressure of the arterial system that the left ventricle (LV) must pump against during each contraction. Afterload can be estimated …

Afterload is a concept of the work or pressure needed by the ventricle to eject blood out of the semilunar valve. The most common influence on afterload is the vascular tone or resistance to …