BTEC Unit 1 Physiology - Cardiovascular and Respiratory

Which chamber of the heart is represented by number 3 in the diagram?

• Right Atrium

• Left Atrium

• Right Ventricle

• Left Ventricle

The blood vessel leaving the left ventricle is the

(a)  

Which stage of the cardiac cycle follows atrial diastole?

(a)  

What is the circuit that carries blood to the tissues and returns to the heart?

• Pulmonary

• Systemic

Select which blood vessels transport oxygen poor blood.

• Vena Cava

• Aorta

• Pulmonary Artery

• Veins

• Arterioles

What is the name of the valve at number 8?

• Tricuspid

• Bicuspid

• Pulmonary

• Aortic

During the process of cellular respiration in tissues what would the partial pressure of oxygen be?

• 40

• 100

• 46

• 104

Which of the following would increase in the muscle cell during exercise?

• pH

• Temperature

• PCO2

• PO2

• acidity

The rightward shift of the haemoglobin dissociation curve during exercise is know as the (a)   shift.

The purkinje fibres would be responsible for which stage of the cardiac cycle?

• Ventricular diastole

• Atrial systole

• Atrial diastole

• Ventricular systole