anatomy 1

Question 1

where do the phrenic nerves lie

Answer 1

on top of the pericardium

Question 2

where is the needle inserted in pericardiocentesis

Answer 2

via infrasternal angle and directed superoposteriorly

Question 3

what is the infrasternal angle

Answer 3

lower border of costal cartilages

Question 4

what is the transverse pericardial sinus

Answer 4

posterior to the ascending aorta and pulmonary trunk anterior to SVC

used by surgeons to idenfity and isolate great vessels

Question 5

what makes up the base of the heart

Answer 5

L atrium

Question 6

what makes up the R border of the heart

Answer 6

R atrium mainly

Question 7

what makes up the inferior border of the heart

Answer 7

right ventricle

Question 8

what groove indicates the surface marking for the tricuspid valve

Answer 8

coronary groove - the boundary between right atrium and right ventricle

Question 9

what runs in the coronary groove

Answer 9

R coronary artery

Question 10

coronary sinus

Answer 10

venous conduit in the AV groove posteriorly, drains deoxygenated blood from cardiac veins to the right atrium

Question 11

oval fossa

Answer 11

the remnant of the foraman ovale found in the right atrium

Question 12

crista terminalis

Answer 12

circular muscular ridge in the RA

Question 13

what nerve begins at the ant scalene muscle

Answer 13

phrenic

Question 14

what is the epicardium also called

Answer 14

the viscera serous pericardium

Question 15

what is the intrapericardial pressure normally

Answer 15

around 0

Question 16

what supplies the apex of the heart

Answer 16

LAD

Question 17

what supplies the AVN

Answer 17

pos interventricular artery

Question 18

what supplies the SAN

Answer 18

RCA

Question 19

what are the coronary arteries embedded in

Answer 19

adipose tissue

Question 20

what artery is most likely to be occluded

Answer 20

LAD (RCL)

Question 21

which are the semilunar valves

Answer 21

aortic and pulmonary

Question 22

decsribe the anatomy of the valves

Answer 22

have fibrous rings

have tendinous cords attached to papillary muscles to prevent prolapse during contraction

Question 23

describe the anatomy of the aortic valve

Answer 23

has right, left and posterior cups

and spaces between the cups called sinuses

Question 24

what do the aortic and pulmonary valves both develop from

Answer 24

truncus arteriosus

Question 25

describe the layers surrounding the heart

Answer 25

Question 26

what is found between the ventricles

Answer 26

interventricular septum

Question 27

what is found in the left arterioventricular groove

Answer 27

LCA

Question 28

what is the anterior interventricular groove

Answer 28

marks the boundary between the 2 ventricles and where the LAD lies