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Questions and Answers
Which system is the circulatory system made up of?
Which system is the circulatory system made up of?
- Cardiovascular and lymphatic systems (correct)
- Respiratory and nervous systems
- Digestive and endocrine systems
- Muscular and skeletal systems
Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?
Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?
- Coronary circulation
- Pulmonary circulation (correct)
- Systemic circulation
- Lymphatic circulation
Which layer of the heart is continuous with the endothelium of blood vessels connecting with the heart?
Which layer of the heart is continuous with the endothelium of blood vessels connecting with the heart?
- Epicardium
- Myocardium
- Pericardium
- Endocardium (correct)
Which layer of the blood vessel is responsible for contracting and relaxing to regulate blood flow?
Which layer of the blood vessel is responsible for contracting and relaxing to regulate blood flow?
What is the purpose of anastomoses in the circulatory system?
What is the purpose of anastomoses in the circulatory system?
What is the result of an untreated occlusion of an end artery?
What is the result of an untreated occlusion of an end artery?
What is the function of the skeletal muscle pump in venous return?
What is the function of the skeletal muscle pump in venous return?
Which system is the cardiovascular system made up of?
Which system is the cardiovascular system made up of?
What is the outermost layer of the heart called?
What is the outermost layer of the heart called?
Which circulation is responsible for carrying blood from the left side of the heart to the capillary beds of organs and tissues?
Which circulation is responsible for carrying blood from the left side of the heart to the capillary beds of organs and tissues?
Where does the electrical impulse start in the heart?
Where does the electrical impulse start in the heart?
Which layer of the heart is continuous with the endothelium of blood vessels connecting with the heart?
Which layer of the heart is continuous with the endothelium of blood vessels connecting with the heart?
Which part of the heart contracts when the electrical impulse reaches the AV node?
Which part of the heart contracts when the electrical impulse reaches the AV node?
What is the middle layer of the heart called?
What is the middle layer of the heart called?
Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?
Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?
What is the innermost layer of the heart called?
What is the innermost layer of the heart called?
Where does the electrical impulse travel after reaching the AV node?
Where does the electrical impulse travel after reaching the AV node?
Which layer of the blood vessel is responsible for contracting and relaxing to regulate blood flow?
Which layer of the blood vessel is responsible for contracting and relaxing to regulate blood flow?
What is the result of an untreated occlusion of an end artery?
What is the result of an untreated occlusion of an end artery?
What is the purpose of anastomoses in the circulatory system?
What is the purpose of anastomoses in the circulatory system?
Which system is the circulatory system made up of?
Which system is the circulatory system made up of?
What is the function of the skeletal muscle pump in venous return?
What is the function of the skeletal muscle pump in venous return?
Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?
Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?
What is the function of the lymphatic capillaries?
What is the function of the lymphatic capillaries?
What is the purpose of the hepatic portal venous system?
What is the purpose of the hepatic portal venous system?
How does the sympathetic tone affect arterioles?
How does the sympathetic tone affect arterioles?
What are the three main components of the cardiovascular system?
What are the three main components of the cardiovascular system?
What are the three layers of the heart?
What are the three layers of the heart?
Describe the conduction system of the heart.
Describe the conduction system of the heart.
What is the function of the sympathetic tone in the circulatory system?
What is the function of the sympathetic tone in the circulatory system?
What is the function of the lymphatic capillaries?
What is the function of the lymphatic capillaries?
What are the three main components of the cardiovascular system?
What are the three main components of the cardiovascular system?
What is an anastomosis in the circulatory system?
What is an anastomosis in the circulatory system?
What is the purpose of the hepatic portal venous system?
What is the purpose of the hepatic portal venous system?
What is the result of an untreated occlusion of an end artery?
What is the result of an untreated occlusion of an end artery?
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Study Notes
Circulatory System Composition
- The circulatory system is made up of the heart, blood vessels, and blood.
Heart Anatomy
- The outermost layer of the heart is called the epicardium.
- The middle layer of the heart is called the myocardium.
- The innermost layer of the heart is called the endocardium.
Circulations
- The pulmonary circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart.
- The systemic circulation is responsible for carrying blood from the left side of the heart to the capillary beds of organs and tissues.
Conduction System
- The electrical impulse starts in the sinoatrial (SA) node.
- The electrical impulse travels through the atrioventricular (AV) node.
- When the electrical impulse reaches the AV node, the atrioventricular bundle contracts.
Blood Vessels
- The tunica media is the layer of the blood vessel responsible for contracting and relaxing to regulate blood flow.
Anastomoses
- Anastomoses are connections between blood vessels that allow for collateral circulation.
- The purpose of anastomoses in the circulatory system is to provide an alternative route for blood flow in case of blockage.
Blood Flow Regulation
- The sympathetic tone causes arterioles to constrict, increasing blood pressure.
Cardiovascular System
- The cardiovascular system is made up of the heart, blood vessels, and blood.
Lymphatic System
- Lymphatic capillaries are responsible for the uptake of interstitial fluid and proteins.
- The purpose of the hepatic portal venous system is to deliver nutrient-rich blood from the digestive system to the liver for processing.
Venous Return
- The skeletal muscle pump plays a crucial role in venous return by contracting and relaxing to push blood back towards the heart.
Occlusion of End Artery
- The result of an untreated occlusion of an end artery is tissue death due to lack of oxygen and nutrients.
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