★ The Circulatory System Quiz
The heart is enclosed in a protective sac called __________.
A. myocardium
B. capillaries
C. valve
D. pericardium
Select your answer:
Topics:
Cell Structure and Function Prokaryotic Cells and Viruses Biology for Engineers Immune Cells Faction Anatomy: Muscle Counseling: Fact or Myth? Autism Awareness Non-Communicable Disease Cell Theory & Melanoma Lymphatic System Health - Nutrition Connective Tissue Injury Sensory Disorder ConjunctivitaOther quiz:
Lymphatic System › ViewThe immune system helps maintain blood volume levels, and thus also maintains
A. blood pressure
B. synaptic transmission
C. viral immunity
D. hormone secretion
Pituitary, Thyroid and Adrenal › View
Which of the following is not a protein hormone?
A. ACTH
B. Thyroxine
C. TSH
D. GH