Cardiovascular System — Flashcards

Modified Shock Index is calculated using?_____

In _____ hypoxia, blood flow is very low; more oxygen is extracted per unit of blood, leading to an increase in reduced hemoglobin and cyanosis.

Baroreceptors provide _____ feedback in responses to changes in blood pressure

The main site of peripheral vascular resistance is precapillary _____

In normally flowing blood in venules, _____ cells are confined to a central axial column

Thin-walled and delicate vessels like capillaries are less prone to rupture and this can be explained by _____

Height of contraction in a preloaded muscle contraction is _____ than afterloaded muscle contraction

The presence of hemoglobin in normal arterial blood increases its O2 concentration approximately by _____ times

Activation of chemosensitive vagal C fibers located in the cardiopulmonary region, causing bradycardia, hypotension, and apnea followed by rapid shallow breathing, is known as _____ reflex

Increased sympathetic discharge causes, increases venous tone and mean systemic filling pressure, and causes a(n) _____ in venous return