Cardiology and Respiratory

What is the main function of the heart in the circulatory system?

• To bake cookies

• To fly in the sky

• To play the guitar

• To pump blood throughout the body

Which chamber of the heart receives oxygenated blood from the lungs?

• left atrium

• lower ventricle

• right atrium

• pulmonary artery

Name the valve that separates the left atrium from the left ventricle.

• Aortic valve

• Pulmonary valve

• Tricuspid valve

• Mitral valve

What is the purpose of the respiratory system in the human body?

• To produce hormones

• To aid in digestion

• To facilitate the exchange of oxygen and carbon dioxide.

• To regulate body temperature

Which organ in the respiratory system is responsible for the exchange of oxygen and carbon dioxide?

• Liver

• Heart

• Lungs

• Kidneys

What is the process called when oxygen is taken in and carbon dioxide is released in the lungs?

• Respiration

• Photosynthesis

• Digestion

• Fermentation

What is the name of the tiny air sacs in the lungs where gas exchange occurs?

• Trachea

• Pleura

• Bronchioles

• Alveoli

Which muscle helps in the expansion and contraction of the lungs during breathing?

• Triceps

• Quadriceps

• Biceps

• Diaphragm

What is the role of the diaphragm in the respiratory system?

• The diaphragm helps in digestion by secreting enzymes

• The diaphragm plays a role in maintaining balance and coordination

• The diaphragm helps in the process of breathing by expanding and contracting the thoracic cavity.

• The diaphragm is responsible for pumping blood throughout the body

How does oxygen from the air enter the bloodstream in the lungs?

• Ingestion through the mouth

• Inhalation through the nose

• Absorption through the skin

• Diffusion through the alveoli into surrounding capillaries