heart

Question 1

location of the heart

Answer 1

• Middle mediastinum
• Posterior to the body of the
  sternum and the 2nd to the
  6
  th costal cartilages
• anterior to T5-T8

Question 2

pericardium is amde of

Answer 2

Fibrous: tough, dense irregular
connective tissue
* Attachments:
* Below: central tendon of
the diaphragm.
* Front: sternum by the
sternopericardial
ligaments
* Serous: thinner, more delicate

Question 3

apex of the heart

Answer 3

lt at teh level of the fifth intercostal space

Question 4

base of the heart

Answer 4

la and four pulmonary veins

Question 5

anteriro surface of the heart

Answer 5

ra and rt

Question 6

right pulmonary surface

Answer 6

ra

Question 7

left pulmonary syurface

Answer 7

lt and a portion of la

Question 8

inferior surface of the heart

Answer 8

lt rt

Question 9

right border of the heart

Answer 9

ra and rt

Question 10

superiro border of the heart

Answer 10

foot of great vessels

Question 11

inferior border of the heart

Answer 11

right ventricle to teh paical part of theleft ventricle

Question 12

left border of the heart

Answer 12

the base to the apex

Question 13

what are wrinkled puches outisde tehatria that give extra space

Answer 13

auricles

Question 14

sulci description

Answer 14

grooves that mark external boundaries on the heart and contain blood vessels and some amoubt of fat

Question 15

sulci on the heart

Answer 15

coronary sulcus deep contaisn coronary blood vessels and externall marks the sepertaion between the superior atria and the inferiro ventricles
anterior and posterior interventricular sulci

Question 16

ra description

Answer 16

2 -3 mm in thickness
sulcus and crista terminalis
anterior wall is rough because of the pectinate muscles
posterior wall is smooth
interatrial septum contains oval depression called fossa ovalis rememnant of foramen ovale

Question 17

right atrium recieves deoxygenate dblood from the

Answer 17

superiro and inferiro vena cava and the coronary sinus

Question 18

the valve between the ra and rt

Answer 18

tricsupid valve made up of dense connective tissue
anteriro septal and inferior cusps

Question 19

right ventricle description

Answer 19

4-5 mm in thickness
forms mostof the anterior surface of the heart
trabulcae carnae and papillary cone shaped muscles that connnect to the chordae tendonae
moderate band runs from the septal to the anterior wall

Question 20

left atrium description

Answer 20

recieves oxygentaed blood from four pulmonary veins
smooth anetriro and posteriro walls becuase no pectinate muscles are present
mitral bicuspid left atrioventricular fvalve between the la and lt

Question 21

crista termnalis is located

Answer 21

outside

Question 22

crista and sulcus terminalis job

Answer 22

seperate teh anteriro from the posterior wall -of the heart

Question 23

left ventrciel description

Answer 23

10-15 mm inthickness for,s teh apex of the heart
aortic valve ( 2 anterior 1 posteriro ) cusps passes blood from thelt to the ascending aorta

Question 24

left coronary arteyr passes

Answer 24

forward between teh left auricle and the pulmonary trunk

Question 25

branches oof the left coronary artery

Answer 25

* The anterior interventricular branch or left anterior descending (LAD) artery is in the anterior interventricular sulcus and supplies oxygenated blood to the walls of both ventricles. ⚫ The circumflex branch lies in the coronary sulcus and distributes oxygenated blood to the walls of the left ventricle and left atrium

Question 26

right coronary artery description

Answer 26

The right coronary artery: arises from ascending aorta and runs forward between the pulmonary trunk and the right auricle:

Question 27

branches of right coronary artery

Answer 27

Atrial branches: to the right atrium. * Posterior interventricular: follows the posterior interventricular sulcus and supplies the walls of the two ventricles with oxygenated blood ⚫ Marginal branch: transports oxygenated to the right ventricle

Question 28

the rigjt coronary arteyr runs

Answer 28

posteriorly

Question 29

branch of circumflix

Answer 29

left marginal

Question 30

branch of LAD

Answer 30

diagonal

Question 31

coronary sinus

Answer 31

in teh posteriro surface of the heart empties into the ra in the coronary sulcus

Question 32

great cardiac vein

Answer 32

in the anteriro interventricuklar sulcus draisn from the l and r ventricles along with thela

Question 33

middle cardiac vein

Answer 33

emptoes from the l and r ventricles and runs in the posteior interventrciular sulcus

Question 34

small cardiac vein

Answer 34

runs in the coronary sulcus and draisn dfrom the right a and v

Question 35

anterior cardiac vein

Answer 35

draisn from the right v directly into the right atrium