Hemodynamics — Flashcards

Flashcard 161: Endothelial dysfunction (e.g. left-sided HF) leads to a(n) _____ in vasoconstrictive mediators and a(n) _____ in vasodilative mediators

Answer: increase

Flashcard 162: The greater the amount of elastic tissue there is in a blood vessel (elastance), the _____ the compliance is

Answer: lower

Flashcard 163: Apical surfaces of ependymal cells are covered in _____ (which circulate CSF) and _____ (which help in CSF absorption)

Answer: cilia

Flashcard 164: In _____-to-_____ shunts, hypoxemia always occurs because a significant fraction of the cardiac output is not delivered to the lungs

Answer: right

Flashcard 165: Pulsus paradoxus is quantified by measuring the variation of _____ pressure during expiration and inspiration

Answer: systolic

Flashcard 166: The normal mean pulmonary artery pressure is between _____ and _____ mmHg

Answer: 10

Flashcard 167: Cortisol (glucocorticoids) up-regulates _____ receptors on arterioles, increasing their sensitivity to catecholamines (i.e. norepinephrine and epinephrine)

Answer: α1

Flashcard 168: What effect may adenosine have on blood pressure? _____

Answer: Decreased (hypotension)

Extra: Sketchy Pharmacology: Cardiovascular (Antiarrhythmics)

Flashcard 169: Endothelial cells prevent thrombosis by secreting _____ molecules, which augment antithrombin III (ATIII)

Answer: heparin-like

Flashcard 170: When a blood vessel is added to a system in parallel, the total resistance _____

Answer: decreases