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40 terms

Heart and great vessels of the heart

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Apex of the heart
inferior point of the heart
Arch of the aorta
The most superior portion of the aorta, lying between
the ascending and descending segments of the aorta
Ascending aorta
Branches off the left ventricle; carries oxygen rich blood to parts of the body above the heart
Auricles of atria
serve as storage space
allow for some additional volume
AV bundle
pathway for signals from AV node
AV node
picks up electrical impulse from the SA node and causes ventricles to contract, causing blood to move into arteries
Brachiocephalic artery
a major artery, arising from the arch of the aorta, that supplies blood to the right arm and the head.
Brachiocephalic vein
Vein formed by the union of the jugular and subclavian veins above the heart. Carries deoxygenated blood to right atrium of heart.
Bundle branches
transmits impulses throughout the ventricular walls
Celiac trunk
The first artery to branch off of the aorta, posterior to the diaphragm. It carries blood to the stomach, pancreas, and spleen.
Circle of Willis
a ring of arteries at the base of the brain
Common carotid artery
Arteries that supply blood to the face, head, and neck.
Cordae tendineae (Tendenous cords)
tough cords attached to the heart valves
Coronary artery
the artery that branches from the aorta to supply blood to the heart
Descending aorta
Deep to the inferior vena cava; the largest artery of the body; carries blood away from the heart down the midline of the body
External carotid artery
Supplies blood to the anterior parts of the scalp, ear, face, neck, and sides of head
Fossa ovalis
an oval depression on the interatrial septum that is the remains of an opening of the fetal heart that normally closes soon after birth
Inferior mesenteric artery
arises near the lower end of the aorta and supplies the large intestine
Inferior vena cava
brings oxygen poor blood from the lower part of the body to the right atrium
Internal carotid artery
the branch of the carotid artery that supplies blood to the brain and eyes and internal parts of the head
Left atrium
the left upper chamber of the heart that receives blood from the pulmonary veins
Left AV valve
the valve between the left atrium and the left ventricle; the mitral valve or bicuspid valve
Left SL valve
aortic valve left vent to aortic valve
Left ventricle
the chamber on the left side of the heart that receives arterial blood from the left atrium and pumps it into the aorta
Papillary muscle
pull on the chordae tendinae preventing cusps from swinging back into the right atrium
Pericardial sac
the membrane surrounding the heart
Pulmonary artery
carries deoxygentated blood from the heart to the lungs
Pulmonary trunk
the start of the pulmonary circuit, vessel that leaves the right ventricle and routes blood to the lungs where gas exchange occurs.
Pulmonary vein
any of four veins that carry arterial blood from the lungs to the left atrium of the heart
Renal artery
an artery originating from the abdominal aorta and supplying the kidneys and adrenal glands and ureters
Right atrium
the right upper chamber of the heart that receives blood from the venae cavae and coronary sinus
Right AV valve
Also called the Tricupsid valve. Prevents back flow of deoxygenated blood
Right SL valve
between R. ventricle & pulmonary trunk; also known as Pulmonary
Right ventricle
the chamber on the right side of the heart that receives venous blood from the right atrium and pumps it into the pulmonary trunk
SA node
pacemaker of the heart
Subclavian artery
either of two arteries that supply blood to the neck and arms
Subclavian vien
At what point does lymph drain into the vascular system
Superior mesenteric artery
originates from the upper part of the aorta that supplies the small intestines and the cecum and the colon
Superior vena cava
drains blood from head, neck, arms & chest into top of right atrium
Trabeculae carnae
muscular ridges and columns on inside walls of ventricles