12 Questions
What is the main function of the tricuspid valve?
To prevent back-flow of blood from the ventricle to the atrium
What is the purpose of the aorta?
To pump blood out to the rest of the body
What is the diaphragm?
A sheet of muscle under the lungs
What is NOT true about the effect of exercise?
Less oxygen and glucose get to the muscle
What is the location of the right ventricle?
In the lower half of the right side of the heart
What is NOT good for the heart?
Eating fast food 3 times a week
Which valve prevents the back-flow of blood from the ventricle to the atrium?
Mitral valve
What is the primary function of the atria in the heart?
To receive blood from the body
Which vessels are responsible for the exchange of materials between the blood and body?
Capillaries
What is the name of the tube that splits into two bronchial tubes?
Trachea
Which of the following is NOT part of the respiratory system?
Ventricle
What is the name of the flap of tissue that covers the trachea to prevent food from entering the trachea?
Epiglottis
Study Notes
Cardiovascular System
- The heart is divided into 4 chambers.
- The right ventricle pumps blood into the pulmonary artery, transporting oxygen-poor blood to the lungs.
- The left ventricle pumps oxygen-rich blood to the body.
- The septum is the muscular wall that separates the left and right sides of the heart.
Heart Valves
- The tricuspid valve is a flap that lies between the right atrium and the right ventricle, preventing back-flow of blood.
- The mitral valve is located between the left atrium and the left ventricle, preventing back-flow of blood.
Blood Vessels
- Arteries carry blood away from the heart throughout the body.
- Veins carry blood towards the heart.
- Capillaries are responsible for the exchange of materials such as gases, nutrients, etc. between the blood and body.
Respiratory System
- Alveoli are tiny sacks in the lungs surrounded by capillaries where oxygen enters the bloodstream, and carbon dioxide exits.
- The trachea (windpipe) is kept open by rings of cartilage.
- The diaphragm is a sheet of muscle under the lungs that regulates the pressure inside the chest.
- The bronchial tubes split off from the trachea.
- The pharynx connects the nasal cavity and the oral cavity.
Respiration
- Respiration occurs in all cells.
- The respiratory system is responsible for moving oxygen throughout the body.
Joints and Ligaments
- Joints are places where two bones come close together and are connected by ligaments.
- Ligaments connect bone to bone.
Test your knowledge of human body systems, including the circulatory system, respiratory system, and more!
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