Chapter 19 Heart and Neck Vessels Flashcards Preview

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Flashcards in Chapter 19 Heart and Neck Vessels Deck (57)
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1

Precordium

Area on the anterior chest directly over the heart and great vessels (outside)

2

Mediastinum

The heart and great vessels are located between the lungs in the middle third of the thoracic cage called the mediastinum. (Inside)

3

Apex of the heart

The bottom of the heart, you can plapate the apical impulse on some people at the 5th intercostal space mid clavicular line

4

Base of the heart

The top of the heart

5

PMI

Point of maximal impulse found at 5 ICS Mid clavicular line on the apex of the heart

6

Pulmonary veins dump into

the left atrium

7

Chordae Tendineae

connect valve to muscle

8

Heart Anatomy

Lies in thoracic cavity
Behind sternum
Left of mid-line
Precordium
Base
Apex
12cm x 8cm x 6cm

9

Pericardium

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

10

Atrioventricular valves-

mitral (left) and tricuspid (right)
separate the atria and the ventricals

Purpose: to maintain unidirectional blood flow through the chambers of the heart

11

Myocardium

Muscular wall of the heart

12

Endocardium

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

13

Semilunar valves-

aortic (left side) and pulmonic (right side)

set between the ventricals and the arteries

Purpose: to maintain unidirectional blood flow through the chambers of the heart

14

Great Vessels

These blood vessels circulate blood to and from the body and the lungs.

Superior Vena Cava
Inferior vena cava
Pulmonary artery
Pulmonary vein
Aorta

15

How Does Blood Pump Through the Body?

Closed System: Heart and Pulmonary and Systemic Circulation



16

Coronary Arteries

Left coronary artery
Left anterior descending
Right coronary artery
Left circumflex artery

17

s3 heart sound

S3-ventricular filling

comes after diastole

can mean congestive heart failure

18

s4 heart sound (atrial kick)

S4-atrial contraction

comes before systole

can mean congestive heart failure

19

s1 heart sound (lub)

occurs with closure of the av valves and signals the beginning of systole

the mitral component is the 1st sound followed by the tricuspid component . can be heard together all over the precordium but loudest at the apex

20

S2 heart sound (dub)

occurs with closure of the semilunar valves and signals the end of systole

s2 is the loudest at the base

21

The ____ atrium and _____ ventrical are facing forward as the heart sits inside the body

Right, right

The heart is positioned twisted slightly to the left.

22

Blood flow-

From Liver/ head- upper extremeties -
through superior and inferior vena cava-
to right atrium-
through tricuspid-
into right ventrical -
through pulmonic valve -
to pulmonary artery-
to lungs -
pulmonary veins -
left atrium -
through mitral valve-
to left ventrical-
through aortric valve -
to aorta

flows from high pressure to low pressure






23

Anterior

front

24

Posterior

Back

25

viceral

near the organ

26

Inferior vena cava

brings unoxengenate blood up from the feet and legs

27

Widow maker

left coronary artery

28

Aortic stenosis

calcification of aorta

29

aortic valve problems cause

shortness of breath

30

erbs point

3rd ICS on left

where all heart sounds are heard the same loudness