Topics: Vascular Quiz
A 30-year-old male athlete experiences dizziness after standing up quickly from a seated position. Which physiological mechanism is primarily responsible for venous return and preventing orthostatic (standing) hypotension?
A. Valves in veins preventing backflow
B. Increased discharge of cardiopulmonary stretch receptors
C. Respiratory pump during inspiration
D. Increased sympathetic outflow from arterial baroreceptor reflex
Select your answer:

Topics:
Diseases & Disorders Circulatory & Respiratory System Bone Marrow Histology Radiation and Health Cell Transport Skull Viruses and Prions Human Reproduction Muscle pathophysiology Systematic Bacteriology Diversity Immunology Forensic Pathology (Autopsy) Assessment Obstructive Lung Disease Psychology, Psychiatry, & Social WorkOther quiz:
Water Macromolecules › ViewTrue or False
Macromolecules are tiny molecules that cells need?
A. TRUE
B. FALSE
Human Eye › View
Following is far-sightedness
A. Myopia
B. Hypermetropia
C. Presbyopia
D. All of the above