Biology 315 Wk 7 - Circulatory System I

Apex of heart

feature. tip of the heart pointing down toward the 5th left intercostal space

Base of heart

feature. Circumference, TA circles top of the heart.

Right atrium

Chambers. TA pinches top right of the heart

Right auricle

Chamber. Identify the flap.

Left Atrium

Chamber. TA pinches top left of the heart

Left auricle

Chamber. Identify the flap.

Right ventricle

Chamber. TA pinches bottom right.

Left ventricle

Chamber. TA pinches bottom left.

Anterior Surface of the heart

"region", front side of the heart

diaphragmatic surface of the heart

Region

Right pulmonary surface of the heart

Region. Right side.

Left pulmonary surface of the heart

Region. Left side.

Right border of the heart

left border of the heart

Inferior border of the heart

Superior border of the heart

Coronary sulcus

Depression, on top of the heart, inside.

anterior interventricular sulcus

depression. anterior of the heart.

posterior interventricular sulcus

depression. posterior of the heart

Aorta

structure. Leaves the left ventricle

Ascending aorta

Portion. The portion of the aorta that rises from the heart.

Arch of aorta

Portion. TA makes a rainbow (This is the only time)

Pulmonary trunk

Collective structure. Leaves the right ventricle.

left pulmonary arteries

structures.

right pulmonary arteries

ligamentum arteriosum

feature. Has blood clot, also right next to black color.

superior vena cava

feature.

inferior vena cava

feature.

Pulmonary veins

Collective structure. Both side of this picture.

Left superior pulmonary veins

structure

Right superior pulmonary veins

structure

Left inferior pulmonary veins

structure

right inferior pulmonary veins

structure

Right coronary artery

structure. below the right auricle.

Right marginal artery

structure. to lateral wall of right ventricle

posterior descending artery

structure. sits @ posterior interventricular sulcus.

Left coronary artery

structure. On the coronary sulcus.

Left anterior descending artery

Structure. In the anterior interventricular sulcus.

circumflex artery

structure.

Cardiac veins

structure. T shaped

Coronary sinus

structure. Middle of the T-shape

Great cardiac vein

structure.

Middle cardiac vein

structure.

Small cardiac vein

structure.

Fibrous pericardium

Covering. outer layer of the pericardium
#1

serous pericardium

Collective covering. In between the first and the third layer
#2

parietal layer of the serous pericardium

Feature. Behind the serous pericardium layer.

#3

visceral layer of the serous pericardium

Feature. the bare layer of the heart
#2

Pericardial cavity

(END OF S1) Space. between the 2 layers.
#5

Endocardium

inside circle. #1

Myocardium

thick muscular part. #2

Epicardium

layer on the outside. #3

Interatrial septum

structure. DH They squeeze it.

Fossa ovalis

depression. DH BEAN

Right atrium

Charmber. DH, TA circles top right.

Pectinate muscle

structure. Inside flap on DH

Sinus venarum

surface. Below pectinate muscle. #2 on this picture.

opening of the superior vena cava

Space. EFH

opening of the inferior vena cava

Space. Only one hole.

Opening of the coronary sinus

Space. Bellow fossa ovalis, the smallest hole?

Left atrium

Chamber. EFH

Left auricle

Chamber. Ear on the DH.

Openings of the pulmonary veins

collective space. This but on the dark heart.

Interventricular septum

strucutre. DH

Muscular part of the interventricular septum

portion. DH

membranous part of the interventricular septum

portion. What is this portion in deep? DH

Right ventricle

Chamber

Right atrioventricular orifice

space. Basically the name. DH

Tricuspid valve

structure. DH

Papillary muscles (3)

structure. on both sides. DH.

Tendinous cords

feature. Strings on top of the papillary muscle. DH.

Trabeculae carneae muscle

Structure. Beef jerky, meat.

Conus arteriosus

Narrowing. In the little split in LH.

Opening of the pulmonary trunk

Space. Top of trunk in LH same area. TA circles the top.

Pulmonary valve

Entire structure.

semilunar cusps of the pulmonary valve

structure. “what are these 3 components?”

Left ventricle

Chamber, DH. TA also pinches.

Left atrioventricular orifice

Space. Ta puts probes like the right one.

Mitral valve

Structure. EFS, inside left ventricle.

Aortic vestibule

Narrowing, In big split

Opening of ascending aorta

space. Circle top, but closes the big split.

Aortic valve

Entire structure. LH.

semilunar cusps of the aortic valve

(END of S2) 3 components. The ones shown inside.

Pulmonary arteries

The thicker one (start of S3)

Pulmonary veins

thin ones

Ascending aorta

portion. Top of the heart, below artery.

Arch of aorta

curvature.

Brachiocephalic artery

Structure.

right common carotid artery

structure. Top of brachiocephalic artery

right subclavian artery

structure. Goes along clavical

right internal thoracic artery

structure. goes to thoracic cut.

Left common carotid artery

structure.

Left subclavian artery

structure

left internal thoracic artery

structure. left side also cut.

Thoracic aorta

portion. most left side thoracic area, takes the heart out.

Right posterior intercoastal arteries

The most posterior, artery.

Abdominal aorta

portion. the tube!

right renal arteries

the right is on top. we have to flip the kidney.

left renal arteries

below the kidney for left.

Celiac trunk

structure. on top of abdominal aorta