heart

Question 1

pericardium

Answer 1

Double layered fibroserous sac that encloses the heart and roots of the great vessels

Question 2

Fibrous pericardium

Answer 2

dense fibrous outer layer of the connective tissue

Fuse centrally to the diaphragm and attached to the sternum buy sterno pericardial ligaments

Functions to compress the heart within the thoracic cavity and limits distention

Pierced inferiorly by the vena cava and posteriorly by the pulmonary veins, superiorly it blends with a connective tissue of the great vessels

Question 3

Serous pericardium

Answer 3

parietal layer- line the fibrous pericardium
Visceral layer- epicardium covering of the heart

Between the two layers, there’s a pericardial cavity, which contains a smaller of fluid for the lubrication of the moving surfaces

Question 4

transverse, pericardial sinus

Answer 4

Located anterior to the superior vena cava, and posterior to the ascending aorta and pulmonary trunk

Question 5

oblique, pericardial sinus

Answer 5

Found it on the right by the inferior vena cava and pulmonary veins in on the left by the pulmonary veins

Question 6

base of the heart

Answer 6

Most posterior part of the heart

it is formed by the left atrium and a small portion of the right

Question 7

Apex of the heart

Answer 7

projects inferolaterally from the base of the heart
It is located in the fifth intercostal space just medial to the mid clavicular line in the supine individual

Question 8

diaphragmatic surface of the heart

Answer 8

Inferior surface of the heart

Formed by both ventricles, but primarily the left

Question 9

Sternocostal surface of the heart

Answer 9

Anterior surface of the heart

Formed largely by the right ventricle

Question 10

Pulmonary surface of the heart

Answer 10

left side of the heart

Formed largely by the left ventricle

Question 11

Right border of the heart

Answer 11

Formed by the right atrium, and is in line with the superior and inferior vena cava

Question 12

inferior border of the heart

Answer 12

Formed by the right ventricle, and a small part of the left ventricle

Question 13

Left border of the heart

Answer 13

Formed by the left ventricle and slightly by the left atrium

Question 14

superior border of the heart

Answer 14

Both atria

Question 15

Right atrium

Answer 15

receives blood from the inferior and superior vena cava, and the coronary sinus
Coronary sinus is the main drainage of the heart

Characterized by the pectinate muscles and fossa ovalis

Question 16

Right ventricle

Answer 16

receives blood from the right atrium and pumps into the pulmonary arteries

Characterized by the trabeculae carnae and papillary muscles

Walls of the right ventricle form, a smooth surface, the infundibulum, in the upper medial part as it leads the pulmonary trunk

pulmonary trunk is equipped with pulmonary valves, prevent a reflexive blood

Question 17

papillary muscles are connected to

Answer 17

to the tricuspid valve by the chordae tendonae

Question 18

left atrium

Answer 18

Receives blood via for pulmonary veins from the lungs

Blood is pass to the left ventricle through the mitral office. This office is guarded by the mitral or bicuspid valve.

Question 19

left ventricle

Answer 19

Walls are three times as thick than the right ventricle

blood is propelled from the ventricle into the aorta through the aortic valves

Question 20

Right coronary artery passage

Answer 20

arises from the aorta and passes inferiorly to the coronary sulcus

gives off the right marginal artery at the inferior border of the heart

At the inferior border, it turns left and posterior and gives rise to the posterior interventricular artery

Question 21

posterior interventricular artery runs

Answer 21

Inferiorly to the Apex of the heart and the posterior interventricular sulcus

Question 22

left coronary artery

Answer 22

Arises from the aorta, and divides into the anterior interventricular artery, and a circumflex artery

anterior interventricular artery descends to the apex of the heart where it anastomoses with posterior interventricular artery

Circumflex artery passes around left border of the heart, and the coronary sulcus and anastomoses with the termination of the right coronary artery

Arising from the circumflex artery is a left marginal artery

Question 23

Great, cardiac vein

Answer 23

ascends in the anterior interventricular sulcus

Main tributary of the coronary sinus

Question 24

middle cardiac vein

Answer 24

Ascends in the posterior interventricular sulcus

accompanies a posterior interventricular branch, which usually runs from the right coronary artery

Question 25

Small cardiac vein

Answer 25

runs in the coronary sulcus on the right side

Accompanies the right marginal branch of the right coronary artery

Question 26

what drains most of the area supplied by the right coronary artery?

Answer 26

Middle and small cardiac veins