Podcast
Questions and Answers
Which chamber of the heart receives unoxygenated blood from the cranial and caudal vena cava?
Which chamber of the heart receives unoxygenated blood from the cranial and caudal vena cava?
- Right ventricle
- Left ventricle
- Right atrium (correct)
- Left atrium
Which valve separates the right atrium from the right ventricle?
Which valve separates the right atrium from the right ventricle?
- Aortic valve
- Mitral valve
- Tricuspid valve (correct)
- Pulmonic valve
Which chamber of the heart pumps unoxygenated blood into the low-pressure pulmonary circulation?
Which chamber of the heart pumps unoxygenated blood into the low-pressure pulmonary circulation?
- Right ventricle (correct)
- Right atrium
- Left ventricle
- Left atrium
What represents the closure of the mitral and tricuspid valves at the beginning of ventricular systole?
What represents the closure of the mitral and tricuspid valves at the beginning of ventricular systole?
Which chamber of the heart receives and holds oxygenated blood from the pulmonary veins?
Which chamber of the heart receives and holds oxygenated blood from the pulmonary veins?
Which valve separates the left atrium from the left ventricle?
Which valve separates the left atrium from the left ventricle?
Which chamber of the heart is the largest and pumps oxygenated blood to the rest of the body?
Which chamber of the heart is the largest and pumps oxygenated blood to the rest of the body?
What Indicates closure of the semilunar valves at the beginning of ventricular diastole?
What Indicates closure of the semilunar valves at the beginning of ventricular diastole?
Which vessel is the largest artery in the body?
Which vessel is the largest artery in the body?
A dogs heart extends from
A dogs heart extends from
Which of the following is true about the Sinoatrial Node (SA node)?
Which of the following is true about the Sinoatrial Node (SA node)?
Which blood vessels carry blood away from the heart?
Which blood vessels carry blood away from the heart?
What is the function of the coronary arteries?
What is the function of the coronary arteries?
What is the main function of arterioles?
What is the main function of arterioles?
How are veins constructed compared to arteries?
How are veins constructed compared to arteries?
What is the difference in pressure between venous blood and arterial blood?
What is the difference in pressure between venous blood and arterial blood?
What is the function of capillaries?
What is the function of capillaries?
What is the function of the cranial vena cava?
What is the function of the cranial vena cava?
Which blood vessels supply blood to the head and neck?
Which blood vessels supply blood to the head and neck?
Where is the saphenous vein located in a dog?
Where is the saphenous vein located in a dog?
What is the function of the middle layer in the aorta and pulmonary arteries?
What is the function of the middle layer in the aorta and pulmonary arteries?
Blood in the _______ __________ is under higher pressure than blood in the ________ or _________ _______
Blood in the _______ __________ is under higher pressure than blood in the ________ or _________ _______
Which blood vessels have thinner walls compared to arteries?
Which blood vessels have thinner walls compared to arteries?
The feline heart extends from
The feline heart extends from
Blood flows through arterioles into:
Blood flows through arterioles into:
Which blood vessels have no muscle layer in their walls?
Which blood vessels have no muscle layer in their walls?
Which blood vessels merge to form veins?
Which blood vessels merge to form veins?
Which major blood vessels supply blood to the head and neck?
Which major blood vessels supply blood to the head and neck?
Which major blood vessels supply blood to the forelimbs?
Which major blood vessels supply blood to the forelimbs?
Which major blood vessels supply blood to the hind limb?
Which major blood vessels supply blood to the hind limb?
The heart is almost completely surrounded by the lungs. T or F
The heart is almost completely surrounded by the lungs. T or F
Which valve separates the left atrium from the left ventricle?
Which valve separates the left atrium from the left ventricle?
What vessel delivers unoxygenated blood from the right atrium to the lungs
What vessel delivers unoxygenated blood from the right atrium to the lungs
Identify the correct statement regarding the canine heart
Identify the correct statement regarding the canine heart
Identify the correct statement regarding the feline heart
Identify the correct statement regarding the feline heart
The base of the heart is directed
The base of the heart is directed
The apex of the heart lies
The apex of the heart lies
The heart lies within the thoracic cavity, within the ....
The heart lies within the thoracic cavity, within the ....
The shape of the heart is
The shape of the heart is
The layer between the fibrous and serous layer is called the
The layer between the fibrous and serous layer is called the
Which vessel holds deoxygenated blood until it is pumped to the right ventricle
Which vessel holds deoxygenated blood until it is pumped to the right ventricle
During diastole the _____ valve open
During diastole the _____ valve open
The AV/Tricuspid valve consists of
The AV/Tricuspid valve consists of
Vessels associated with the right ventricle
Vessels associated with the right ventricle
What connects the pulmonary artery to the descending aorta
What connects the pulmonary artery to the descending aorta
How many leaflets does the left AV valve have
How many leaflets does the left AV valve have
What valve opens during diastole
What valve opens during diastole
Most common cause of congested heart failure in dogs
Most common cause of congested heart failure in dogs
What vessel is the loudest on the left side of the chest
What vessel is the loudest on the left side of the chest
What vessel is best heard on the right side
What vessel is best heard on the right side
What chamber is 2-3 times thicker than its counterpart
What chamber is 2-3 times thicker than its counterpart
Which chamber is considered the pumping chamber and it is conical in shape
Which chamber is considered the pumping chamber and it is conical in shape
The largest veins have
The largest veins have
Blood in the systemic circulation encounters
Blood in the systemic circulation encounters
Which vessels consist of many elastic fibers and aid in propelling
Which vessels consist of many elastic fibers and aid in propelling
Second most common congenital heart defect problem
Second most common congenital heart defect problem
The three segments of the aorta
The three segments of the aorta
The aorta artery wall layers are similar to
The aorta artery wall layers are similar to
The largest artery in the body, thickest vessel walls
The largest artery in the body, thickest vessel walls
What vessel branch off the aorta and travel toward the thoracic limbs
What vessel branch off the aorta and travel toward the thoracic limbs
What structure arches dorsally and then travels caudally
What structure arches dorsally and then travels caudally
Numerous branches emerge in the
Numerous branches emerge in the
Which vessel supplies blood to the pelvic viscera?
Which vessel supplies blood to the pelvic viscera?
___________ continue to split into smaller and smaller vessels and then arterioles
___________ continue to split into smaller and smaller vessels and then arterioles
The _______________ connect venules which form larger veins which take the blood back to the heart
The _______________ connect venules which form larger veins which take the blood back to the heart
Which major blood vessels supply blood to the right forelimb?
Which major blood vessels supply blood to the right forelimb?
The walls of most blood vessels contain
The walls of most blood vessels contain
Constriction and relaxation allows the vascular system to:
Constriction and relaxation allows the vascular system to:
Structure on craniomedial aspect of forelimb
Structure on craniomedial aspect of forelimb
Structure located on the medial aspect of hindlimb
Structure located on the medial aspect of hindlimb
Which valve separates the left atrium from the left ventricle?
Which valve separates the left atrium from the left ventricle?
Care must be taken to avoid accidental injection into the __________
Care must be taken to avoid accidental injection into the __________
What vessel collects blood from the pelvic viscera, hindlimbs and abdominal organs from the various veins that run alongside the arteries and deposits blood into the right atrium
What vessel collects blood from the pelvic viscera, hindlimbs and abdominal organs from the various veins that run alongside the arteries and deposits blood into the right atrium
The layers of the pericardium are
The layers of the pericardium are
Ligament related to the fibrous pericardium layer
Ligament related to the fibrous pericardium layer
Innermost pericardiac layer
Innermost pericardiac layer
What vessel accepts blood pumped to the heart
What vessel accepts blood pumped to the heart
What pumps blood away from the heart
What pumps blood away from the heart
Heart is divided into left and right halves by the
Heart is divided into left and right halves by the
What are the 3 types of vessels
What are the 3 types of vessels
The vena cava is associated with?
The vena cava is associated with?
What vessel is associated with the right ventricle
What vessel is associated with the right ventricle
How many chambers does the heart have
How many chambers does the heart have
Identify the four chambers of the heart
Identify the four chambers of the heart
Identify the upper chambers
Identify the upper chambers
Identify the lower chambers
Identify the lower chambers
Which blood vessels supply oxygenated blood to the myocardium?
Which blood vessels supply oxygenated blood to the myocardium?
I am a blood vessel that drains into the right atrium
I am a blood vessel that drains into the right atrium
I am a valve comprising two cusps, my other name is mrital
I am a valve comprising two cusps, my other name is mrital
I am the structure separating the left and right sides of the heart, in the fetus I am incomplete
I am the structure separating the left and right sides of the heart, in the fetus I am incomplete
I am the chamber that blood leaves as it enters the aorta
I am the chamber that blood leaves as it enters the aorta
Which chamber of the heart receives unoxygenated blood from the cranial and caudal vena cava?
Which chamber of the heart receives unoxygenated blood from the cranial and caudal vena cava?
I am the vessel taking the blood to the lungs for oxygenation
I am the vessel taking the blood to the lungs for oxygenation
I am the fetal blood vessel that allows blood to bypass the pulmonary circulation
I am the fetal blood vessel that allows blood to bypass the pulmonary circulation
I make up the outer layer of the myocardium
I make up the outer layer of the myocardium
I am the pressure wave within an artery caused by contraction of the heart
I am the pressure wave within an artery caused by contraction of the heart
Study Notes
Heart Anatomy and Function
- The right atrium receives unoxygenated blood from the cranial and caudal vena cava.
- The tricuspid valve separates the right atrium from the right ventricle.
- The right ventricle pumps unoxygenated blood into the low-pressure pulmonary circulation.
- Closure of the mitral and tricuspid valves at the beginning of ventricular systole is represented by the first heart sound (S1).
- The left atrium receives and holds oxygenated blood from the pulmonary veins.
- The mitral valve separates the left atrium from the left ventricle.
- The left ventricle is the largest chamber and pumps oxygenated blood to the body.
- Closure of the semilunar valves at the beginning of ventricular diastole indicates the second heart sound (S2).
Major Blood Vessels
- The aorta is the largest artery in the body.
- Blood vessels carry blood away from the heart include arteries and arterioles.
- The coronary arteries supply blood to the heart muscle (myocardium).
- Arterioles are responsible for regulating blood flow and pressure.
- Veins typically have thinner walls compared to arteries.
- Blood in the arteries is under higher pressure than in veins or capillaries.
- The saphenous vein is located in the hind limb of a dog.
- The middle layer of the aorta and pulmonary arteries provides structural strength and elasticity.
Circulatory System Overview
- Blood flows through capillaries for gas exchange.
- The cranial vena cava functions to carry deoxygenated blood from the head and neck back to the heart.
- Blood vessels supplying the head and neck include the carotid arteries.
- The heart is surrounded by the lungs, with its apex pointing downward.
Heart Structure Details
- During diastole, the atrioventricular (AV) valve opens.
- The pulmonary artery delivers unoxygenated blood from the right ventricle to the lungs.
- The ductus arteriosus connects the pulmonary artery to the descending aorta in fetal circulation.
- The left AV valve has two leaflets (also known as the mitral valve).
- The left ventricle is conical in shape and its muscular wall is 2-3 times thicker than that of the right ventricle.
Heart and Blood Vessel Characteristics
- The largest veins have larger lumens and thinner walls compared to arteries.
- The heart lies within the thoracic cavity, surrounded by the pericardium, which consists of fibrous and serous layers.
- The aorta consists of three segments: the ascending aorta, arch, and descending aorta.
- Blood vessels consist of three layers: tunica intima, tunica media, and tunica externa.
Clinical Insights
- Congestive heart failure in dogs is commonly caused by issues such as mitral valve disease.
- The crookedness of the heart can be assessed by observing its sounds during auscultation; the loudest vessel sounds are often from the left side of the chest.
Blood Flow Dynamics
- The venous system consists of venules that merge to form veins returning blood to the heart.
- Elastic arteries assist in maintaining blood pressure through their elasticity and ability to recoil.
- Capillaries do not have muscle layers in their walls, allowing for easy nutrient and gas exchange.
Miscellaneous Facts
- The vena cava is associated with the right atrium.
- The heart is divided into left and right halves by the septum.
- Blood vessels supplying the forelimbs include the subclavian arteries.
- The pressure wave within an artery caused by contraction of the heart is termed a pulse.
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Description
Test your knowledge of the cardiac system anatomy with this informative quiz. Learn about the heart chambers, valves, coverings, and major blood vessels associated with the heart. Understand the flow of blood through the heart. Perfect for veterinary technicians and anyone interested in the cardiovascular system. Happy Vet Tech Week!
