Cardiovascular System

Question 1

1st organ to undergo functional differentiation?

Answer 1

Heart

Question 2

Rhombencephalon?

Answer 2

separation of the somatic and splanchnic mesoderm

Question 3

The original cardiogenic plate becomes epicarcdiuim and myocardium

Answer 3

Epimyocardium

Question 4

wall of endocardial tube; becomes the inner wall of the heart

Answer 4

Endocardium

Question 5

The ridge is thickened at the median plane of the canal and protrudes into the canal as the?

Answer 5

Atrioventricular endocardial cushions

Question 6

The IAS 2 leaves an opening; the formen ovale that is directed toward the?

Answer 6

caudal or inferior vena cava

Question 7

A process of interlacing bundles of cardiac muscles, in the inner face of the ventricle.

Answer 7

Trabeculation

Question 8

Interlacing bundles of cardiac muscles

Answer 8

trabeculae carnae

Question 9

RAV Canal: 3 flapped?

Answer 9

Tricuspid

Question 10

LAV Canal: 2 flapped?

Answer 10

Mitral

Question 11

Arise by modification of some trabeculae carnae?

Answer 11

Pappilary muscles

Question 12

Formed by reshaping of strands from the AV endocardial cushions?

Answer 12

Chordae tendinae

Question 13

Semilunar valves are formed ___ encordial cushions?

Answer 13

3

Question 14

lined by simple sqamous epithelium (mesothelium) on the outside

Answer 14

Epicardium

Question 15

It comprises the bulk of the ventricular wall and is composed of cardiac muscle?

Answer 15

Myocardium

Question 16

It is lined by endothelium on the inside.

Answer 16

Endocardium

Question 17

Folds of endocardium that guard major orifices of the heart.

Answer 17

Cardiac valves

Question 18

Guard the openings to the ascending aorta and pulmonary trunk.

Answer 18

Semilunar valves

Question 19

Membranous part of the intrventricular septum?

Answer 19

Septum membranaceum

Question 20

DWFCT between R and L AV canals?

Answer 20

Trigonum fibrosum (fibrous triangle)

Question 21

4 fibrous rings that support the cardiac valves?

Answer 21

Annuli fibrosi

Question 22

Located in the wall of R atrium at its junction with the anterior vena cava, pacemaker of the heart

Answer 22

Sinoatrial node

Question 23

Transmits impulses from SA node to AV bundle.

Answer 23

Atrioventricular node

Question 24

gives of a branch to the R and L ventricular wall

Answer 24

AV bundle of His

Question 25

Gives off cranial extensions to face

Answer 25

Dorsal Aortae

Question 26

AA 1 and AA 2

Answer 26

Degenerate

Question 27

R and L AA 3 (Dorsal half)

Answer 27

Internal Carotid A.

Question 28

R and L AA 3 (Ventral half)

Answer 28

Common Carotid A.

Question 29

Right AA 4

Answer 29

Right Subclavian Artery

Question 30

Left AA 4

Answer 30

Arch of Adult Aorta

Question 31

Right AA 6 (Ventral half)

Answer 31

Right Pulmonary A.

Question 32

Right AA 6 (Dorsal half)

Answer 32

Degenerate

Question 33

Left AA 6 (Ventral half)

Answer 33

Left Pulmonary A.

Question 34

Left AA 6 (Dorsal half)

Answer 34

Ligamentum arteriosum

Question 35

R and L dorsal aortae cranial to AA 3

Answer 35

Internal Carotid A.

Question 36

R and L ventral aortae cranial to AA 3

Answer 36

External Carotid A.

Question 37

Horse, cow and pig

Answer 37

Bicarotid trunk

Question 38

Chicken

Answer 38

2 branchiocephalic trunks

Question 39

Arise bilateraly between somites

Answer 39

Dorsally intersegmental branches

Question 40

Regress as soon as their appearance

Answer 40

ODIA

Question 41

Anastamose with each other to form vertebral artery

Answer 41

CDIA

Question 42

Anastomoses with the internal carotid ateries to form

Answer 42

Circle of Willis

Question 43

Going to the diaphragm

Answer 43

Phrenico-abdominal arteries

Question 44

Kidney

Answer 44

Renal arteries

Question 45

Spleen going to the stomach

Answer 45

Celiac artery

Question 46

will be going to the lung and esophagus

Answer 46

Bronchoesophageal artery

Question 47

Drain the head region and epty into the common cardinal veins

Answer 47

Cranial or anterior cardinal veins

Question 48

drain the caudal region of the embryo and epty into the common cardinal veins

Answer 48

Caudal or posterior cardinal veins

Question 49

connect with common and caudal cardinal veins and empty into the sinus venosus of the heart

Answer 49

Common cardinal veins

Question 50

Portions between the liver and sinus venosus

Answer 50

Proximal or cranial segments

Question 51

portions lateral to the liver

Answer 51

middle segments

Question 52

portions caudal to the liver

Answer 52

distal or caudal segments

Question 53

only endothelium is present

Answer 53

capillaries

Question 54

sufficient amount of oxygenated blood

Answer 54

Acyanotic

Question 55

insufficient amount of oxygenated blood

Answer 55

Cyanotic

Question 56

narrowing of the pulmonary artery

Answer 56

pulmonary stenosis

Question 57

narrowing of the aorta immediately below

Answer 57

Aortic stenosis

Question 58

small opening in the IV septum

Answer 58

Interventricular septal defect

Question 59

formen overlies the IAF 2

Answer 59

Interatrial septal defect

Question 60

heart in neck region

Answer 60

Ectopia cordis

Question 61

Primary lesions are: IV Septal defect Pulmonary stenosis Dextroaorta

Answer 61

Tetralogy of Fallot

Question 62

no pulmonary stenosis

Answer 62

Eisenmenger complex

Question 63

from endocardial cushions to fuse and R and L AV canals do not separate

Answer 63

Persistent AV Canal

Question 64

no formation of the endocardial cushions

Answer 64

Persistent truncus arteriosus

Question 65

failure of ductus arteriosus to close after birth

Answer 65

Patent ductus arteriosus