Bio 315 Circulatory System I

apex of the heart

Feature; bottom tip of heart, goes towards Left side of body

Base of the heart

Feature;

chock and everything below

R atrium of the heart

Chamber; pinch top pt right side

H1

1

R auricle of the heart

Feature; above right atrium, black nub

smaller more charred

H5

2

L atrium of the heart

Chamber; left side top pt LL

LUQ

H1

28

left auricle of the heart

Feature; elephant ear, chunky nub on top of Left atrium

on pt L side more thick

H5

14

Right ventricle

Chamber; pinch pt right bottom

LRQ

5

L ventricle

Chamber; pinch pt bottom left, bigger

LLQ

15

anterior surface of the heart

Region; hold heart where it sits in chest, wave hand in front

Diaphragmatic surface of the heart

Region, hold heart where it sits in chest, wave hand below it

R. pulmonary surface of the heart

Region; hold heart where it sits in chest, wave hand on medial side

L pulmonary surface of the heart

Region; hold heart where it sits in chest, wave hand on lateral side

Right border of the heart

Boundary; X-ray, medial edge

L border of the heart

Boundary, X-ray, lateral edge, apex points this way

Inferior border of the heart

Boundary; X-ray, bottom edge

Superior border of the heart

Boundary; X-ray, top edge

Coronary sulcus

Depression, goes from Right auricle to Left auricle, probe lays in

H1

anterior interventricular sulcus

Depression; divot on right side, anterior, by right ventricle

H1

posterior interventricular sulcus

Depression; divot on right side, posterior, by right ventricle

H1

Aorta

Structure, big tube off heart with the “fingers”

light color

H1

ascending aorta

Portion; start of aorta, before curve

H1

7

Arch of aorta

Portion; curve upper pt

“rainbow” part

H1

8

Pulmonary trunk

Collective structure; under aorta, splits into 2

6

L pulmonary vein

Structure; lateral spit off trunk

H2

32

R pulmonary vein

Structure; medial split off trunk

34

ligamentum arteriosum

webbing connecting aorta and pulmonary trunk

12

Ligamentum arteriosum

BQ: vestige of the fetal ductus arteriosus, which shunted blood in the pulmonary trunk away from the lungs in the fetus

Superior vena cava

st

Posterior side, probe from above on right

H3

3

inferior vena cava

st

Posterior side, probe from below on right

H3

4

pulmonary veins

collective st

2 holes pipe cleaners go through

H3

L superior pulmonary vein

Posterior side, stick 2 probes through horizontally

red

H3

R superior pulmonary vein

Posterior side, stick 2 probes through horizontally

purple

H3

L inferior pulmonary vein

Posterior side, stick 2 probes through horizontally

brown

H3

R inferior pulmonary vein

Posterior side, stick 2 probes through horizontally

brown

H3

R coronary artery

st

pull right auricle back to show tube on anterior side

H1

16

R marginal artery

st

forms Y-shape off of coronary artery

1st branch off coronary artery

H1

posterior interventricular artery

Structure; posterior side, crinkled ribbon in sulcus

H1

22

L coronary artery

st

pull vessels back to show tube

anterior interventricular artery

Structure; sits in anterior sulcus, anterior side, curly tube

H1

17

Circumflex artery

st

on left border of heart, curly

comes off L coronary arter

H1

18

right atrium

most of right ventricle

part of the left ventricle

the SA and AV nodes

BQ: know 2/4 ….the right coronary artery supplies

left atrium

most of left ventricle

part of the right ventricle

interventricular septum

BQ know 2/4 …the left coronary artery supplies

Coronary sinus

Space;

posterior central hole that probe goes into

H2

23

Great cardiac vein

st

left posterior flap

follow coronary sinus to opposite end

H2

19

middle cardiac vein

st

runs up and down posterior side

H2

20

small cardiac vein

st

small posterior side, on my R

H2

21

Fibrous pericardium

Covering; on outside of big heart A

H4

serous pericardium

Collective covering; flip fibrous pericardium back, both sides

C

parietal layer of serous pericardium

layer on the backside of the fibrous pericardium

D

H4

visceral layer of serous pericardium

layer directly on the heart

E

H4

Pericardial cavity

probe between the 2 layers

space

transverse pericardial sinus

BQ only: connects the left and right sides of the pericardial cavity

oblique pericardial sinus

BQ only: a blind "cul-de-sac" posterior to the heart - surrounded by the pulmonary veins

endocardium

Layer; layer inside the donut

cross section with circle

Myocardium

Layer; thick band, middle of donut

Epicardium

Layer; most superficial, cross section with circle

Interatrial septum

collective Structure; pinch between left and right atrium

H5

Fossa ovalis

depression

in R atrium, pinto bean buried in R atrium

H5

24

Pectinate muscle

st

stretch jeans on inside of right atrium

webbing on wall of R atrium

H5

Sinus venarum

surface; on inside of right atrium, smooth part, by fossa ovalis

H5

opening of the superior vena cava

opening; tip of probe, posterior side, smaller opening at top

H6

opening of the inferior vena cava

opening; posterior side, end of probe, bottom of shoe, smaller opening at back
H6

Opening of the coronary sinus

opening: Hole below fossa ovalis, just stick tip of probe in

H6

openings of the pulmonary veins

collective space; 2 probes in, parallel, across 2 loops, across left atrium

H6

interventricular septum

Structure; separates the ventricles, pinch

H7

muscular part of the inter ventricular septum

THICK part of the septum

• upper portion

H7

membranous part of the inter ventricular septum

THIN part of the septum

• lower portion

H7

membranous part of the inter ventricular septum

BQ: thin-uppermost part the site of ventricular septal defects (common birth defects)

Right atrioventricular orifice

Space, stick probe from atrium to ventricle to open doorway

H5

tricuspid valve

Structure; closed door, three flaps

H5

26

R papillary muscles

Structure; right ventricle,

orange part of the carrot

H5

tendinous cords

Feature; right ventricle

leaves of carrot

trabeculae carneae

Structure; in right ventricle

dirt of carrot

R/L

H8

conus arteriosus

Narrowing; v-shape before tube

H8

opening of the pulmonary trunk

Space; probe into big tube that goes into right ventricle

H8

pulmonary valve

• Entire structure;

all 3 drapes inside valve, right ventricle

H8

27

semilunar cusps of the pulmonary valve

Components; only 1 of the 3 drapes of the pulmonary valve

H8

left atrioventricular orifice

Space; probe in atrium to ventricle, open doorway

the hotdog bun

ta will shove probe in space

H8

mitral valve (bicuspid valve)

Structure; door in between LA and LV

2 flapped valve

H8

29

aortic vestibule

Narrowing; open heart in half, narrowing below the flaps

H8

opening of the ascending aorta

giant space at top of aorta

H8

• space

Aortic valve

Entire structure; all 3 of the drapes above the narrowing in LV

H8

30

semilunar cusps of the aortic valve

Component; only 1 of the 3 drapes

Sino-atrial node

pacemaker of the heart

Superior and inferior vena cava -> right atrium -> tricuspid valve -> right ventricle -> pulmonary valve -> pulmonary artery -> lungs -> left atrium -> mitral valve -> left ventricle -> aortic valve -> aorta -> rest of body

the circulation of blood through the heart

Deoxygenated until lungs

Oxygenated after lungs

oxy/deoxy status of blood as it circulates through the heart

ascending aorta

portion

attached portion of aorta

7

arch of aorta

curvature

into side (body of candycane)

brachiocephalic artery

st

flat tube before curve on top of heart

9

R common carotid artery

st

medial split off brachiocephalic artery

10

R subclavian artery

st

lateral split off brachiocephalic artery, goes under clavicle

11

R internal thoracic artery

st

little cut one by phrenic nerve Right

L common carotid artery

st

2nd split off arch

10

left subclavian artery

st

3rd split off arch, goes directly left

leftmost tube of aorta

11

L internal thoracic artery

cut one hanging down by phrenic nerve Left

descending aorta

thoracic aorta and abdominal aorta

13

thoracic aorta

Portion, straight part on descending aorta, further down

*ta will run probe down pt. L side of heart

R. posterior intercostal artery

st

R ONLY

lower of the two white pins in ab aorta area

abdominal aorta

Portion; part of descending aorta, below the diaphragm

body: 2352

L renal artery

st

LEFT

only thing TA will lift kidney for