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:
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Cell Theory & Melanoma Heart Anatomy Physical and Sensory Impairment Cosmetology Cellular Components Medical Suffixes Physiology Meiosis and intro to Genetics Malaria The Ankle and Lower Leg Cell Bio Multicellular Organisms Integumentary System: Skin Disorder Principles of Microbiology Cell Theory and Cell OrganellesOther quiz:
Health and Diseases › ViewInfectious diseases are diseases caused by an organism such as a virus or a bacterium, which is called a:
A. pathogen
B. toxicant
C. pandemic
D. carcinogen
Germs › View
When is it okay to share medicine?
A. When it belongs to someone in your family
B. When a friend has the same illness
C. Never
D. Anytime