27 Questions
Which valve of the heart has three cusps attached to cone-shaped papillary muscles by tendons?
Tricuspid valve
Where do the atria of the heart receive blood from?
Inferior and superior vena cava
What is the structure that originates action potentials in the heart and acts as a pacemaker?
Sinoatrial node
Which part of the heart conducts action potentials to the apex of each ventricle?
Interventricular septum
Which artery branches off the aortic arch?
Brachiocephalic artery
Where does the ascending aorta branch into right and left coronary arteries?
Ascending aorta
Which artery is found in the abdominal aorta region?
Common iliac artery
Where is the thoracic aorta located?
Portion in thorax
Which artery is not mentioned as branching off the aortic arch?
Right coronary artery
What is the primary function of the cardiovascular system?
Generating blood pressure
Which component of blood plays a crucial role in separating pulmonary and systemic circulations?
Red blood cells (RBC)
What is the main function of plasma in the blood?
Carrying nutrients and waste products
Which element ensures one-way blood flow in the cardiovascular system?
Valves
What triggers changes in the heart's contraction rate and force to match changing metabolic needs?
Regulation by the nervous system
Which part of the blood vessels is responsible for carrying oxygenated blood away from the heart?
Arteries
Which structure allows action potentials to pass through into the interventricular septum?
Atrioventricular (AV) bundle
Where are action potentials carried from the bundle branches to the ventricular walls and papillary muscles?
Purkinje fibers
What is the main function of the Circulatory System mentioned in the text?
Transport enzymes and coagulation factors
What is the main function of veins compared to arteries?
Thin walls and carry blood back to the heart
Which vessels exit the lungs and enter the left atrium?
Pulmonary veins
Where does the aorta exit from?
Left ventricle
What is the main function of the lymphatic system?
Carrying a clear fluid called lymph towards the heart
Which of the following is NOT a function of the lymphatic system?
Transporting hormones to various organs
Where does excess interstitial fluid enter to become lymph?
Lymphatic capillaries
Which vessel returns blood from the body to the right atrium?
Inferior vena cava
What is absorbed from the digestive tract via lacteals in the lymphatic system?
Nutrients
Which of the following is NOT a type of vein in the systemic circulation?
Arterioles
Test your knowledge on human development, evolution, growth, cell organization, tissue types, organ systems, and medical terminology. Explore major clinical applications of anatomical facts and understand the normal histological structure of cells and tissues in the human body.
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