ANATOMY | Cardiovascular System II

Question 1

The heart wall has Three Layers, from Deep to Superficial:

Answer 1

ENDOCARDIUM
MYOCARDIUM
EPICARDIUM

Question 2

The inner part of the heart and it is composed of simple squamous epithelium.

Answer 2

ENDOCARDIUM

Question 3

The thickest part of the heart wall and is made up of cardiac muscle.

Answer 3

MYOCARDIUM

Question 4

The outer surface of the heart.

Answer 4

EPICARDIUM

Question 5

The heart has four hollow chambers:

Answer 5

Two Superior ATRIA and Two inferior VENTRICLES.

Question 6

Each atrium has a wrinkled anterior pouch called an

Answer 6

auricle

Question 7

Internally , the atria are separated by the

Answer 7

interatrial septum

Question 8

the ventricles are separated by the

Answer 8

interventricular septum

Question 9

Receives O2- poor blood from the three veins

Answer 9

right atrium

Question 10

“___________ receives O2- poor blood from the three veins… “
WHAT ARE THE THREE VEINS?

Answer 10

the superior vena cava
the coronary sinus
inferior vena cava.

Question 11

The valve in this, like other heart valves , directs the flow of blood and prevents any backflow

Answer 11

RIGHT ATRIUM

Question 11

The AV valve on the right side of the heart is specifically called the ____________ because it has three cusps, or flaps.

Answer 11

tricuspid valve

Question 11

The cusps of the tricuspid valve are connected to fibrous cords, called the _______________

Answer 11

CHORDAE TENDINEAE

Question 12

“heart strings”

Answer 12

CHORDAE TENDINEAE

Question 13

are connected to the papillary muscles, which are conical extensions of the myocardium

Answer 13

CHORDAE TENDINEAE

Question 14

The atrium receives O2- rich blood from ___________________ veins.

Answer 14

four pulmonary

Question 15

The atrium receives O2- rich blood from four pulmonary veins.

Answer 15

Left Atrium

Question 16

Blood passes from the left atrium into the left ventricle through an ____________

Answer 16

AV valve

Question 17

The AV valve on the left side is specifically called the ____________________ because it has two cusps.

Answer 17

BICUSPID (MITRAL) VALVE

Question 17

Forms the apex of the heart

Answer 17

Left Ventricle

Question 18

Blood passes from the left ventricle through a semilunar valve into the aorta. This semilunar valve is appropriately called the _____________________ .

Answer 18

AORTIC SEMILUNAR VALVE

Question 18

Its cavity is oval-shaped

Answer 18

Left Ventricle

Question 18

Its cavity is crescent-shaped

Answer 18

Right Ventricle