cardiovascular system questions practice Flashcards
Which of the following contains blood at the highest pressure?
Vena cava
Long saphenous vein
Aorta
Radial artery
Right atrium
Aorta
The electrical initiation of the heartbeat begins in the wall of the…
left atrium
interventricular septum
right ventricle
right atrium
left ventricle
right atrium
Which of the following vessels is in the arm?
Subclavian artery
Brachial artery
Tibial artery
Renal artery
Femoral artery
Brachial artery
Which of the following statements is TRUE?
Arterioles contain blood under lower pressure than that in capillaries
The wall of the arteriole consists primarily of elastic fibres in the tunica media
Arterioles only carry deoxygenated blood
The arteriole is under the control of the parasympathetic nervous system
Arterioles make a significant contribution to peripheral resistance
Arterioles make a significant contribution to peripheral resistance
Which of the following assists return of venous blood from the foot to the right atrium?
Gravity
Elastic recoil of the artery
A system of valves within the veins
Peristalsis
The sodium pump
A system of valves within the veins
Complete the following sentence: Blood returning from the lungs first flows into the…
left atrium
left ventricle
pulmonary artery
right atrium
right ventricle
left atrium
Which of the following statements is TRUE?
The muscle layer of the heart wall is called the pericardium
The heart muscle can only contract following an external stimulus
The heart beat is initiated by the sympathetic nervous system
Atrial muscle fibres are connected to each other via intercalated discs and so contract as one unit
The myocardium is the layer of tissue lining the heart
Atrial muscle fibres are connected to each other via intercalated discs and so contract as one unit
Which of the following is part of the electrical conduction system of the heart?
Sinoatrial node
Lymph node
Aortic semilunar valve
Pericardium
Chordae tendineae
Sinoatrial node
Complete the following sentence: Haemoglobin is found in which of the following cells?
Platelets
Monocytes
Lymphocytes
Erythrocytes
Myocytes
Erythrocytes
Which of the following has most effect on peripheral resistance?
Respiratory rate
Stroke volume
Blood vessel diameter
Blood conductivity
Heart rate
Blood vessel diameter
