Chap13 Circulatory System
1. Chap No.12 Circulatory System 2. Human heart is surrounded by a tough membrane known as: (a) Miringes (b) Peritoneum (c) Pericardium (d) Mesentery C 3. There are two types of circulatory fluids the blood and: (a) Coelomic (b) Lymph (c) Water (d) Water and Coelomic B 4. Human ventricle is equipped with an outlet value known as: (a) Mitral Valve (b) Tricuspid valve (c) Bicuspid Valve (d) Semilunar valve D 5. The right atrium open into the right ventricle by an opening known as: (a) Mitral Valve (b) Tricuspid Valve (c) Semilunar Valve (d) Guard Valve B 6. Contraction of heart chambers is called: (a) Beating