★ The Vascular System and Blood Flow Quiz
What is the main role of the nervous system in the return of blood to the heart?
A. Assisting in the distribution of blood to different organs
B. Pushing or massaging blood back to the heart with each muscle contraction
C. Causing veins to slightly constrict to return more blood to the heart
D. Creating a difference in pressure between the veins in the chest and abdominal cavities
Select your answer:
Topics:
Heart and Blood Vessels Blood Groups Hematology / Oncology Virus and Bacteria Genetics Vocabulary Blood Functional Neuroanatomy of the CNS Human Reproduction Physiology Multicellular Organisms Health and Diseases Neurological Disorders Forensics: Blood Pituitary, Thyroid and Adrenal Muscoskeletal SystemOther quiz:
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A. adrenalectomy
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D. thyroidectomy
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The DORSal fin is on a sharks’ ……..
A. back
B. side
C. stomach
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