Lab Heart
Sinotrial Node (SA)
pacemaker of heart
Coronary Sulcus
marks division between the atria and ventricles
encircles most of the heart
coronary sulcus
right atrium
receives venous blood from the body and pumps it into the lungs
Left Atrium
takes oxygenated pul nary blood and pumps it into the body
heart
mediastinum
Auricles
increase the capacity of atrium and increase the volume of the blood the atrium can contain
protruding on the anterior of each atrium
auricles
Aorta
body's largest artery
transports oxygen-rich blood from heart to the rest of the body
Aorta
Ductus arteriosus
temp blood vessel in fetus that allows oxygenated blood bypass the lungs and go directly to the systemic circulation
fossa ovalis
a depression in the heart's right atrium that's remnant of the foramen ovale
foramen ovale
an opening in the fetal heart that allowed to blood to bypass the lungs
papillary muscles
pull on the atrioventricular valves via the chordae tenineae, slowing the closure and preventing trauma to valves
Chordae Tendoneae
heart strings
tethered to atrioventricular valves
chordae tendoneae
strong, fibrous strings that help prevent vavle damage and are attached to the papillary muscle
chordae tendoneae
Tricuspid Valve
opens into the right ventricle; prevent back flow into the right atrium
Bicuspid Valve
opens into the left ventricle; prevents back flow into left atrium
Aortic valve
located between the left ventricle and aorta; prevents back flow into left ventricle
Pulmonary valve
betwen right ventricles and pulmonary artery; prevents back flow in the right ventricles