Answers With Complete Solutions| Grade A+ 2026.
Which body system supplies cells with oxygen and nutrients and carries
away waste? A. Nervous system
B. Respiratory system
C. Urinary System
D. Correct! Circulatory System
The heart is contained in the _______ cavity. pericardial
Which layer of heart anchors it to the diaphragm? A. Endocardium
B. Mediastinal
C. Myocardium
D. Correct! Pericardium
What is the purpose of the mitral valve? The mitral valve controls the
flow of blood from the left atrium into the left ventricle.
Label the figure below (A-E):A:B:C:D: (In blue)E: A: Superior Vena
Cava
B: Right Atrium
C: Tricuspid/Right AV valve
, D: Left ventricle
E. Pulmonary Valve
Name the vessel in the figure below: (highlighted in blue, also indicated
by the arrow) Right coronary artery
Name the vessel in the figure below: (highlighted in blue, also indicated
by the arrow) Left Coronary Artery
Name the vessel in the figure below: (highlighted in blue, also indicated
by the arrow) Circumflex branch
True or False: Veins carry blood towards the heart. True
Which vessel would you expect to be the best place to feel a strong
pulse? A. Subclavian vein
B. Inferior vena cava
C. Correct! Common carotid- subclavian artery
D. Brachiocephalic vein
What is the correct order of blood flow starting from the heart? A.
Correct! Artery → arteriole → capillary → venule → vein
B. Arteriole → artery → capillary → vein → venule
C. Artery → capillary → arteriole → venule → vein
D. Vein → venule → capillary → arteriole → artery
Which layer of a vessel contains the muscular layer? A. Tunica
externa