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Anatomy Q3

The Heart

QuestionAnswer
Right Atrium: Oxygen poor or rich? oxygen poor
Right Atrium: Sending or receiving? receiving
Right Atrium: systemic or pulmonary? systemic
Right Atrium: end or beginning? end
Right Ventricle: Oxygen poor or rich? oxygen poor
Right Ventricle: Sending or receiving? sending
Right Ventricle: Systemic or pulmonary? pulmonary
Right Ventricle: End or beginning? beginning
Left Atrium: oxygen poor or rich? oxygen rich
Left Atrium: Sending or receiving? receiving
Left Atrium: Systemic or pulmonary: Pulmonary
Left Atrium: End or beginning? end
Left Ventricle: Oxygen poor or rich? oxygen rich
Left Ventricle: Sending or receiving? sending
Left Ventricle: Systemic or pulmonary? systemic
Left Ventricle: End or beginning? beginning
How many pulmonary veins? 2 right, 2 left (4 total) Located in Left Atrium
The heart is a ____ pump double
takes blood to and from the lungs pulmonary cicuit
takes blood to and from the body tissues systemic circuit
receive blood from the pulmonary & systemic circuits atria
pumping chambers of the heart ventricles
send blood from the pulmonary & systemic circuits ventricles
largest organ of the mediastinum heart
strong layer of dense connective tissue fibrous pericardium
external layer of the pericardium fibrous pericardium
formed by two layers -- parietal pericardium & visceral pericardium serous pericardium
outer/superficial layer of the serous pericardium parietal pericardium
inner/deep layer of the serous pericardium visceral pericardium
external layer of the heart wall epicardium
visceral layer of the pericardium epicardium
middle layer of the heart wall -- consists of cardiac muscle myocardium
inner layer of the heart wall -- endothelium resting on a layer of connective tissue endocardium
lines the internal walls of the heart and forms the heart valves endocardium
an external groove that marks the division between the atria and the ventricles coronary sulcus
external grooves that mark the division between the ventricles on both the anterior & posterior side of the heart anterior & posterior interventricular sulcus
vessels that enter the right atrium (3) SVC, IVC & Coronary sinus
remnant of a fetal circulatory structure known as the foramen ovale fossa ovalis
location of the fossa ovalis right atrium
aka right atrioventricular valve tricuspid valve
valve located between the right atrium & right ventricle tricuspid valve
when the tricuspid valve opens, blood flows from the ____ ____ to the ____ ____ right atrium to the right ventricle
when the tricuspid valve is closed, it prevents backflow from the ____ ____ to the ____ ____ right ventricle to the right atrium
receiving chamber for oxygen poor blood right atrium
pumping chamber for the pulmonary circuit right ventricle
vessel leaving the right ventricle pulmonary trunk
cone-shaped muscles projecting from the ventricular wall papillary muscles
thin, strong bands attached to the papillary muscles & the flaps of the tricuspid valve chordae tendineae
structures that help to prevent backflow of blood from the right ventricle into the right atrium chordae tendineae
the valve located at the base of pulmonary trunk pulmonary valve (pulmonary semilunar valve)
when the pulmonary valve opens, blood flows from the ___ ___ to the ___ ___ right ventricle to the pulmonary trunk
when the pulmonary valve closes, it prevents backflow from the ___ ___ to the ___ ___ pulmonary trunk to the right ventricle
receiving chamber for oxygen-rich blood left atrium
receive oxygen-rich blood returning from the right lung right pulmonary veins
receive oxygen-rich blood returning from the left lung left pulmonary veins
the vessels that enter the left atrium pulmonary veins
structure located between the left atrium & left ventricle bicuspid valve
aka left atrioventricular valve bicuspid valve
when the bicuspid valve opens, blood flows from the ___ ___ to the ___ ___ left atrium to the left ventricle
when the bicuspid valve closes, it prevents backflow from the ___ ___ to the ___ ___ left ventricle to the left atrium
pumping chamber for the systemic circuit left ventricle
the vessel leaving the left ventricle aorta
the valve located at the base of the aorta aortic valve (aortic semilunar valve)
when the aortic valve opens, blood flows from the ___ ___ to the ___ left ventricle to the aorta
when the aortic valve closes, it prevents backflow from the ___ to the ___ ___ aorta to the left ventricle
How many beats per minute when the heart is at rest? 70-80
the left ventricle is ___ times thicker than the right ventricle 3
which ventricle exerts more pumping force? left
each valve is composed of... endocardium with connective tissue
sets the inherent rate of contraction - known as the heart's internal pacemaker sinoatrial node
cardiac muscle tissue has the intrinsic ability to... generate & conduct impulses and signal cells to contract rhythmically
"resting & digesting" parasympathetic
"fight, flight or fright" sympathetic
fibers running from cervical and upper thoracic chain ganglia sympathetic
branches of the vagus nerve parasympathetic fibers
vessels arising from the ascending aorta & located in the coronary sulcus coronary arteries
drains the oxygen-poor blood from the tissues of the heart itself & empties into the right atrium coronary sinus
Created by: leahmurphy