What is thought of as the primary defenses against pathogens in the human body?
A. Lymphocytes and phagocytes
B. Antibodies and lymphocytes
C. The skin and mucous membranes
D. The circulatory system
Topics:Coronary Heart Diseases Diet Cell and Tissue Paeds Edema Cells & Body Systems Deficiency Diseases History of Immunology Fats And Oil Macromolecules Vitals Musculoskeletal Diseases Nervous & Endocrine Systems Monoclonal Antibodies BMS Cell Cycle and Cancer Neuroanatomy
Other quiz: Circulatory System
What is the main function of the artery?
A. It controls your brain and your thought process.
B. They carry oxygen- poor blood BACK to the heart.
C. Arteries carry oxygen- rich blood AWAY from the heart.
D. It receives information (senses) and sends messages to the body about how to react to things.