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WorksheetsIB Blood Systems #2
Total questions: 30
Worksheet time: 3hrs 30mins
Which side of the heart pumps blood into the lungs?
Right
Left
Both
Identify...
Pulmonary veins
Pulmonary artery
Aorta
Vena cava
Identify...
Pulmonary veins
Pulmonary artery
Aorta
Vena cava
Identify...
Pulmonary veins
Pulmonary artery
Aorta
Vena cava
Identify...
Left atrium
Right atrium
Left ventricle
Right ventricle
Identify...
Left atrium
Right atrium
Left ventricle
Right ventricle
Identify...
Left atrium
Right atrium
Left ventricle
Right ventricle
Identify...
Pulmonary veins
Pulmonary artery
Aorta
Superior Vena Cava
Identify the circled valve
Right atrioventricular (tricuspid) valve
Left atrioventricular (mitral or bicuspid) valve
Pulmonary semilunar valve
Aortic semilunar valve
Identify the circled valve
Right atrioventricular (tricuspid) valve
Left atrioventricular (bicuspid or mitral) valve
Pulmonary semilunar valve
Aortic semilunar valve
Identify the circled valve
Right atrioventricular (tricuspid) valve
Left atrioventricular (bicuspid or mitral) valve
Pulmonary semilunar valve
Aortic semilunar valve
Veins carry oxygen poor (deoxygenated) blood back to the heart.
Arteries carry oxygen poor (deoxygenated) blood back to the heart.
The heart muscle is thickest on the left side of the heart because.....
the left ventricle pumps blood to the entire body
the right ventricle pumps blood to the entire body
the left atrium pumps blood to the entire body
the right atrium pumps blood to the entire body
The atrioventricular valves are large valves that...
prevent backflow of blood from ventricles to atria
prevent backflow of blood from to atria to ventricles
prevent backflow of blood from the pulmonary artery to ventricles
prevent backflow of blood from the aorta to ventricles
The semilunar valves...
prevent back-flow of blood from ventricles to atria
prevent back-flow of blood from to atria to ventricles
prevent back-flow of blood from the pulmonary artery to ventricles
prevent back-flow of blood from the aorta to ventricles
The coronary arteries carry....
blood from the heart to the lungs
blood from the lungs to the heart
blood to the heart muscles
blood to the body from the heart
Systole means.....
contraction of heart muscle
relaxation of heart muscle
high blood pressure
low blood pressure
Diastole means.....
contraction of heart muscle
relaxation of heart muscle
high blood pressure
low blood pressure
What initiates the heartbeat?
sinoatrial node
the vagus nerve
the cardiac nerve
the medulla
When receptors in the blood detect low blood pressure, low oxygen concentration, or low pH the cardiovascular center......
stimulates the heart to beat faster
stimulates the heart to beat slower
produces epinephrin (adrenaline)
does nothing, but continues to monitor
When receptors in the blood detect high blood pressure, high oxygen concentration, or high pH the cardiovascular center......
stimulates the heart to beat faster
stimulates the heart to beat slower
produces epinephrin (adrenaline)
does nothing, but continues to monitor
Epinephrine (adrenaline) is know as the 'fight or flight' hormone, and prepares the body for vigorous physical activity by.....
stimulating the sinoatrial node to increase the heart rate
stimulating the sinoatrial node to decrease the heart rate
stimulates the brain to increase the heart rate
stimulates the brain to decrease the heart rate
Which is the correct sequence for deoxygenated blood returning to the heart from the body?
vena cava → right atrium → right av valve → right ventricle → pulmonary semilunar valve → pulmonary artery → lungs
vena cava → left atrium → left av valve → left ventricle → pulmonary semilunar valve → pulmonary vein → lungs
pulmonary artery → right atrium → right av valve → right ventricle → pulmonary semilunar valve → pulmonary vein → lungs
pulmonary vein → left atrium → left av valve → left ventricle → aortic semilunar valve → aorta → lungs
What is the function of the atrioventricular node (AV node)?
It delays the passage of the electrical impulse from the atria to the ventricles
It causes the the heart to beat faster
It causes the ventricles to contract
It causes the semilunar valves to open allowing blood to leave the heart
What is the role of the pacemaker, sinoatrial node (SAN)?
It controls the release of epinephrine (adrenaline)
It sends nerve impulses to the ventricles
It regulates the activity of the medulla
It changes the frequency of muscle contractions in the heart
What helps to keep blood flowing onwards away from the heart in an artery?
Valves
Elastic fibres
Contraction of skeletal muscles
Having a wide lume
What causes heart ventricles to fill with blood?
I. Atrial contraction
II. Closing of atrioventricular valves
III. Opening of semilunar valves
I only
I and II only
II and III only
III only
