Chapter 19: Heart and Neck Vessels

Briefly relate the route of a blood cell from the liver to tissue in the body.

Liver to right atrium via inferior vena cava, through tricuspid valve to right ventricle, through pulmonic valve to the pulmonary artery, picks up oxygen in the lungs, returns to left atrium, to left ventricle via mitral valve, through aortic valve to aorta, and out to the body.

List the major risk factors for heart disease and stroke in the text.

The major risk factors for heart disease and stroke are hypertension, smoking, high cholesterol levels, obesity, and diabetes. Physical inactivity, family history of heart disease, and age are other risk factors.

Endocardium

Thin layer of endothelial tissue that lines the inner surface of the heart chambers and valves

Select the statement that best differentiates a split S2 from S3. a) S3 is lower pitched and is heard at the apex. b) S2 is heard at the left lower sternal border. c) The timing of S2 varies with respirations. d) S3 is heard at the base; timing varies with respirations.

a

The examiner wishes to listen for a pericardial friction rub. Select the best method of listening. a) with the diaphragm, patient sitting up and leaning forward, breath held in expiration b) using the bell with the patient leaning forward c) at the base during normal respiration d) with the diaphragm, patient turned to the left side

a

When auscultating the heart, your first step is to: a) identify S1 and S2. b) listen for S3 and S4. c) listen for murmurs. d) identify all four sounds on the first round.

a

Fill in the following blanks: S1 is best heard at the ____ of the heart, whereas S2 is loudest at the ____ of the heart. S1 coincides with the pulse in the ______________ and coincides with the ___ wave if the patient is on an ECG monitor.

apex; base; carotid artery; R.

Atrial systole occurs: a) during ventricular systole. b) during ventricular diastole c) concurrently with ventricular systole d) independently of ventricular function.

b

Select the best description of the tricuspid valve. a) left semilunar valve b) right atrioventricular valve. c) left atrioventricular valve. d) right semilunar valve.

b

The examiner is palpating the apical impulse. The normal size of this impulse: a) is less than 1cm b) is about 2 cm c) is 3 cm d) varies depending on the size of the person

b

The examiner wishes to listen in the pulmonic valve area. To do this, the stethoscope would be placed at the: a) second right interspace b) second left interspace c) left lower sternal border d) fifth interspace, left midclavicular line

b

When assessing the carotid artery, the examiner should palpate: a) bilaterally at the same time, while standing behind the patient. b) medial to the sternomastoid muscle, one side at a time. c) for a bruit while asking the patient to hold his or her breath briefly. d) for unilateral distention while turning the patient's head to one side.

b

You will hear a split S2 most clearly in what area? a) apical b) pulmonic c) tricuspid d) aortic

b

A murmur heard after S1 and before S2 is classified as: a) diastolic (possibly benign). b) diastolic (always pathologic). c) systolic (possibly benign). d) systolic (always pathologic).

c

The function of the pulmonic valve is to: a) divide the left atrium and left ventricle. b) guard the opening between the right atrium and right ventricle. c) protect the orifice between the right ventricle and the pulmonary artery. d) guard the entrance to the aorta from the left ventricle.

c

The precordium is: a) a synonym for the mediastinum. b) the area on the chest where the apical impulse is felt. c) the area on the anterior chest overlying the heart and great vessels. d) a synonym for the area where the superior and inferior venae cavae return unoxygenated venous blood to the right side of the heart.

c

The stethoscope bell should be pressed lightly against the skin so that: a) chest hair doesn't stimulate crackles. b) high-pitched sounds can be heard better. c) it does not act as a diaphragm d) it does not interfere with amplification of heart sounds

c

The examiner has estimated the jugular venous pressure. Identify the finding that is abnormal. a) patient elevated to 30 degrees, internal jugular vein pulsation at 1cm above sternal angle b) patient elevated to 30 degrees, internal jugular vein pulsation at 2cm above sternal angle c) patient elevated to 40 degrees, internal jugular vein pulsation at 1cm above sternal angle d) patient elevated to 45 degrees, internal jugular vein pulsation at 4cm above sternal angle

d

The second heart sound is the result of: a) opening of the mitral and tricuspid valves b) closing of the mitral and tricuspid valves c) opening of the aortic and pulmonic valves d) closing of the aortic and pulmonic valves.

d

Pericardial fluid

ensures smooth, friction-free movement of the heart muscle

Ventricle

muscular pumping chamber

Myocardium

muscular wall of the heart

Atrium

reservoir for holding blood

Pericardium

tough, fibrous, double-walled sac that surrounds and protects the heart