Heart Lecture 1

Question 1

Mediastinum

Answer 1

Connective tissue protecting heart (heart location)

Question 2

Heart position

Answer 2

2/3rds left body midline

Question 3

Apex location

Answer 3

5th intercostal space

Question 4

Base Location

Answer 4

3rd costal cartilage

Question 5

Pericardium

Answer 5

membrane protecting heart

Question 6

Fibrous pericardium function

Answer 6

Hold heart in place, prevents stretch, provide protection

Question 7

Serous pericardium how many layers

Answer 7

Divided in 2 layers

Question 8

Parietal pericardium layer

Answer 8

Outer layer fused to fibrous layer

Question 9

Visceral pericardium

Answer 9

Adheres to heart surface

Question 10

Pericardial cavity

Answer 10

Space b/w parietal and visceral layers

Question 11

Pericardial fluid

Answer 11

Fluid b/w layers. Reduce friction

Question 12

Pericarditis

Answer 12

Pericardium inflammation

Question 13

Cardiac tamponade

Answer 13

excess pericardial fluid

Question 14

Epicardium

Answer 14

Outer layer of heart

Question 15

Myocardium

Answer 15

muscle tissue 95% heart mass

Question 16

Endocardium

Answer 16

smooth lining inside the heart

Question 17

how many chambers

Answer 17

4 total
2 atria
2 ventricles

Question 18

Atria

Answer 18

Receives blood from body

Question 19

Auricles

Answer 19

“little ears” to receive more blood

Question 20

Septum

Answer 20

Connective tissue separate chambers

Question 21

Interventricular septum

Answer 21

separate ventricles

Question 22

Interatrial septum

Answer 22

Separate atrium

Question 23

Sulcus

Answer 23

Grooves b/w chambers, hold fat/blood vessels

Question 24

Coronary sulcus

Answer 24

separates atrium/ventricles

Question 25

Anterior interventricular sulcus

Answer 25

separate anterior ventricles

Question 26

Posterior interventricular sulcus

Answer 26

separate posterior ventricles

Question 27

Right atrium

Answer 27

receive from systemic circuit (body)

Question 28

Right ventricle

Answer 28

receive deoxygenated from right atrium into pulmonary circuit (lung)

Question 29

Left atrium

Answer 29

receives oxygenated blood from pulmonary circuit (lungs)

Question 30

Left ventricle

Answer 30

receive from left atrium into systemic circuit (body)

Question 31

Right Atrium receives blood from (3)

Answer 31

1. superior vena cava 2. inferior vena cava 3. Coronary sinus

Question 32

RA Anterior wall rough because

Answer 32

pectinate muscles for contractions

Question 33

Bi-cuspid mitral valve function

Answer 33

control blood passage LA to LV

Question 34

Fossa ovalis

Answer 34

Oval depression from foramen ovale

Question 35

Ligament arteriosum

Answer 35

Connect pulmonary trunk to aorta. (Lungs to body)

Question 36

Ductus Arteriosus

Answer 36

duct connect pulmonary trunk to body

Question 37

Trabeculae carneae

Answer 37

muscle ridges

Question 38

Papillary muscles attach where

Answer 38

stick out of trabeculae carneae

Question 39

Chordae tendineae

Answer 39

attach to valves

Question 40

Pulmonary valve

Answer 40

Blood pass from RV to lungs

Question 41

Left ventricle, why stronger

Answer 41

Largest chamber, More muscle to pump blood further

Question 42

Aortic valve

Answer 42

Where blood passes from LV to aorta

Question 43

Myocarditis

Answer 43

Inflamed heart muscles (viral infections)

Question 44

Endocarditis

Answer 44

Inflamed endocardium (bacterial infections)

Question 45

Pericarditis

Answer 45

Pericardium Inflammation (viral infection)

Question 46

which direction blood flows

Answer 46

One-way flow

Question 47

Pressure changes cause

Answer 47

open/closing valves causing blood flow

Question 48

valve b/w each ventricle/atrium

Answer 48

Atrioventricular valve

Question 49

At exit from each ventricle

Answer 49

Semilunar valves