Select your answer:
Topics:
Cardiovascular Pathophysiology Health & Wellness Vocabulary Central Nervous System Nursing Vocabulary Cells and Organ Systems Cells, Tissues and Organs Illness and Symptoms Communicable Diseases and Immune Response (OCR) Viruses Biomolecules Viruses and Prions Tissues Vet Science Terms Bacterial Protein Synthesis Inhbitors T Cells PHE Disease Outbreak and TransmissionOther quiz:
The Circulatory System › ViewThe heart is enclosed in a protective sac called __________.
A. myocardium
B. capillaries
C. valve
D. pericardium
Food and Health & Bones and Muscles › View
A ______________ is a diet with all the nutrients, water and roughage in the right proportion.
A. Pizza chart
B. Balanced diet
C. Pyramid diet