Unit 1 - Heart and Neck Flashcards
What is the anterior surface portion of the chest which most of our assessment is completed on?
Precordium
What is the cavity/space called between the lungs?
Mediastinum
What intercostal space is the base of the heart found?
2nd intercostal space
What intercostal space is the apex of the heart found?
5th intercostal space
What is the membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane?
Pericardium
Note: Parietal pericardium is the fibrous outer layer of the heart
Visceral pericardium is the inner layer of the heart
The bulk of the heart is made up of this muscular tissue.
Myocardium - the heart muscle
What is the inner lining of the heart called?
Endocardium
A reservoir of the heart which receives blood from the body and lungs in a relaxed state is called an __________?
Atrium
Which atrium receives deoxygenated blood from the body?
Right Atrium
Which atrium receives oxygenated blood from the lungs?
Left Atrium
What is the lower portion of the heart that acts like a pump and sends blood away from the body?
Ventricles
What ventricle contracts to send deoxygenated blood to the lungs?
Right Ventricle
What ventricle contracts to send oxygenated blood to the body?
Left Ventricle
What is the unique quality about the pulmonary vein?
It is the only vein that carries oxygenated blood. In return, the pulmonary artery is the only artery to carry deoxygenated blood in the heart.
What are the thread-like bands of fibrous tissue which attach on one end to the edges of the tricuspid and mitral valves of the heart and on the other end to the papillary muscles, small muscles within the heart that serve to anchor the valves.
Chordae Tendineae
What does AV valve mean?
Atrioventricular - valve open with diastole and close with ventricular systole. These are between the atria’s in the upper chamber and the ventricles in the lower chambers.
What does SL Valves mean?
Semilunar valves - open with ventricular systole. They are between the ventricles and the Pulmonary artery and aorta. Once it fills with blood it will force the valve shut.
What is the AV valve found on the right side of the heart?
Tricuspid valve
What is the SL valve found on the Left side of the heart?
Aortic valve
Where is the mitral valve found?
On the left side of the heart found between the left atrium and ventricle
Where is the pulmonic valve found?
On the right side of the heart between the right ventricle and the pulmonary artery.
Normally, how much blood can you heart pump through per minute.
4-6L of blood
Describe the flow of blood from outside the heart, through the heart, and out of the heart.
DEOXYGENATED Blood comes from the head and lower body through the superior/inferior vena cave.
It then rushes into the relaxed right atrium, through the tricuspid valves down to the right ventricle.
Then gets pumped through the pulmonic valve to the pulmonary artery which carries it to the lungs to become oxygenated.
OXYGENATED blood then returned through the pulmonary vein to the left atrium, down the mitral valve to the lower left ventricle.
It then is pumped out the aortic valve to the aorta.
Fresh blood is then carried to the head and the rest of the body.
What is Systole?
Built up pressure in ventricles for ejection.
Systolic = how hard you heart is pumping the blood out.
Note* Pressure is the right side of your heart is much lower due to the main ejection of blood comes from the left side of the heart.
What is Diastole?
Relaxed ventricles
Diastolic = how your heart fills up
Where would S1 heart sounds be heard?
First heart sound - would be found at the apex of the heart as it is a result from the AV valves close. It is the lub sound.
Where is the S2 heart sounds found?
Second Heart sounds - would be found in the base of the heart as it is a result of the SL valves closing. It is the DUP sound.
What sound could occur if the patient where to hold their breath changing the pressure of their heart?
Split S2 (Delayed Pulmonary Valve Closure.
When would a S3 heart sound be heard?
Right after S2
When would a S4 heart sound be heard?
Just before S1
What is the cause of S3 and S4 sounds?
Resistant ventricles
Describe some sounds that can be heard if a heart murmur is present?
Gentle blowing
Clicking
Rushing
Gurgling
*It is not specific to one site or noise
What is some causes of murmurs in the heart?
Changes in velocity or viscosity of the blood or valve and wall defects within the heart.
What is the murmur called if it is heard between S1 and S2 heart sounds?
Systole Murmur
What is the murmur called if it is heard after the S2 heart sound?
Diastole murmur
List some characteristics that you may use to describe a heart murmur.
Timing - systole or diastole
Loudness/Intensity - 6 grading scale
Frequency - Pitch
Duration (more silence than sound)
Grade the following murmur:
Faint murmur that can only be heard after a few seconds have elapsed
Grade 1
Grade the following murmur:
loud murmur, a thrill may be present
*Note a thrill is a palpable vibration over the site of an murmur
Grade 4
Grade the following murmur:
Faint murmur that is heard immediately
Grade 2
Grade the following murmur:
Moderate murmur intensity.
Grade 3
Grade the following murmur:
Loud murmur that can be heard with the chest piece just removed from and not touching the skin, a thrill is present.
Grade 6
Grade the following murmur:
Loud murmur that can be heard if only the edge of the stethoscope is in contact with the skin, a thrill is present.
Grade 5