External heart

Question 1

layers of the heart

Answer 1

endocardium, myocardium pericardium

Question 2

endocardium:

Answer 2

lines inner heart, vessels, chambers

Question 3

myocardium:

Answer 3

cardiac muscle

Question 4

pericardium:

Answer 4

viscerale(inner)+parietele(outer). cavum pericardium fluid filled. serous and fibrous layer

Question 5

basis cordis

Answer 5

dorso cranial

Question 6

apex cordis

Answer 6

caudo ventral

Question 7

2 surfaces

Answer 7

facies auricularis, facies atrialis

Question 8

facies auricularis:

Answer 8

auricles seen. faces craniolaterally, towards left

Question 9

facies atrialis:

Answer 9

atriums. faces caudolaterally, towards right

Question 10

grooves of heart

Answer 10

sulcus coronarius
sulcus interventricularis subsinosous
sulcus interventricularis paraconalis

Question 11

sulcus coronarius:

Answer 11

separates atria and ventricles

Question 12

sulcus interventricularis subsinosous

Answer 12

atrial surface, from sulcus coronarius to apex

Question 13

sulcus paraconalis

Answer 13

facies auricularis, from sulcus coronarius to distal 1/3 of margo cranialis

Question 14

coronary arteries

Answer 14

a. coronarius sinistra

a. coronarius dextra

Question 15

a. coronarius sinistra

Answer 15

from left sinus of aortic bulb, passes between left auricle and truncus pulomonalis to sulcus coronarius

Question 16

a. coronarius sinistra branches

Answer 16

R interventricularis paraconalis (in sulcus interventricularis paraconalis)
r. circumflexus ( around top of heart)
ca, ru, gives r intermedius and r. interventricularis subsinosous

Question 17

a. coronarius dextra

Answer 17

from right sinus of aortic bulb, between right auricle and truncus pulmonalis to sulcus coronarius
ca, ru, goes to sulcus interventricularis
eq, su, gives r. interventricularis subsinosous

Question 18

basis cordis gives:

Answer 18

aorta
truncus pulmonalis (deoxy. to lungs)
vena cava cran et caud (to R.A from systemic circ.)
vv. pulomalis (oxy. to L.A)

Question 19

aorta

Answer 19

ca, su, a. brachiocephalica and a. subclaia sinistra

eq, ru,a. brachiocephalica

Question 20

position of heart

Answer 20

within mediastinum of thoracic cavity, mostly covered by lungs

Question 21

between what ribs does the heart sit

Answer 21

3rd to 6th ribs

ca, 7th

Question 22

what separates it from the thoracic wall

Answer 22

pericardium, mediastinum, pleura

Question 23

where does the heart extend to

Answer 23

cranially to thymus, (young), caudally to diaphragm