Shared Flashcard Set

Details

Chapter 18: The Heart
Chapter 18: The Heart
64
Anatomy
Undergraduate 3
10/29/2015

Additional Anatomy Flashcards

 


 

Cards

Term
the heart is located on the ______ surface of diaphragm
Definition
superior
Term
the human heart is Approximately the size of your
Definition
fist
Term
the heart is located _____ of the midline
Definition
left
Term
the heart is located _______ to the vertebral column
Definition
anterior
Term
the heart is located _______ to the sternum
Definition
posterior
Term
the right side of the heart receives _________ from body and pumps it to the lungs to get more oxygen
Definition
Oxygen-poor blood
Term
the left side of the heart receives _________ from lungs and sends it to the body
Definition
oxygenated blood
Term
blood flow between the heart and lungs
Definition
Pulmonary circuit
Term
blood flow between the heart and the rest of the body
Definition
Systemic circuit
Term
receiving chambers; 2 superiorly
Definition
Atria
Term
pumping chambers; 2 inferiorly
Definition
Ventricles
Term
bottom pointed portion that lies left of the midline and anterior to the rest of the heart
Definition
Apex
Term
broad posterior surface of heart
Definition
Base
Term
triple layer sac around the heart
Definition
Pericardium
Term
protects and anchors the heart, prevents overfilling of the heart with blood, and allows for the heart to work in a relatively friction-free environment
Definition
the Pericardium
Term
strong layer of dense CT; adheres to diaphragm inferiorly
Definition
superficial fibrous pericardium
Term
between heart and fibrous pericardium
Definition
deep two-layer serous pericardium
Term
lines the internal surface of the fibrous pericardium
Definition
The outer parietal layer
Term
lines the surface of the heart
Definition
The visceral layer or epicardium
Term
the parietal layer and visceral layer are separated by...
Definition
the fluid-filled pericardial cavity
Term
visceral layer of the serous pericardium
Definition
Epicardium
Term
cardiac muscle layer forming the bulk of the heart
Definition
Myocardium
Term
crisscrossing, interlacing layer of connective tissue that surrounds all four valves
Definition
Fibrous skeleton of the heart
Term
the Fibrous skeleton of the heart anchors valves and prevents ________ of valve openings
Definition
over dilation
Term
the Fibrous skeleton of the heart is the main point of ______ for cardiac muscle
Definition
insertion
Term
the Fibrous skeleton of the heart blocks direct spread of _____________
Definition
electrical impulse
Term
endothelial layer of the inner myocardial surface
Definition
Endocardium
Term
Vessels returning blood to the heart include: ____ and _____
Definition
• Superior and inferior venae cavae
• Right and left pulmonary veins
Term
Vessels conveying blood away from the heart include ...
Definition
right and left pulmonary arteries and the three arteries from the ascending aorta
Term
the _____?______ splits into right and left pulmonary arteries
Definition
Pulmonary trunk
Term
Ascending aorta has three branching arteries , what are their names ?
Definition
brachiocephalic,
left common carotid,
and subclavian
Term
the receiving chambers of the heart
Definition
Atria
Term
Atria are divided by ____________
Definition
interatrial septum
Term
each atrium has a protruding _____
Definition
auricle
Term
______________ muscles mark atrial walls
Definition
pectinate muscles
Term
blood enters right atrium from which 3 places ?
Definition
superior and inferior venae cavae

and coronary sinus
Term
blood enters left atria from which place?
Definition
pulmonary veins
Term
the discharging chambers of the heart
Definition
Ventricles
Term
the ventricles are separated by ___________
Definition
interventricular septum
Term
______muscles and ________muscles mark ventricular walls
Definition
papillary muscles and trabeculae carneae muscles
Term
right ventricle pumps blood into the ____?_____
Definition
pulmonary trunk
Term
left ventricle pumps blood into the ___?___
Definition
aorta
Term
blood enters the right atrium. name the next 2 destinations where blood will travel to in the correct order
Definition
1. tricuspid valve (right AV valve)

2. right ventricle
Term
blood enters the Right ventricle. name the next 3 destinations where blood will travel to in the correct order
Definition
1. pulmonary semilunar valve
2. pulmonary arteries
3. lungs
Term
blood enters the Lungs. name the next 2 destinations where blood will travel to in the correct order
Definition
1. pulmonary veins
2. left atrium
Term
blood enters the Left atrium. name the next 2 destinations where blood will travel to in the correct order
Definition
1. bicuspid valve (left AV valve)
2. left ventricle
Term
blood enters the Left ventricle. name the next 2 destinations where blood will travel to in the correct order
Definition
1. aortic semilunar valve
2. aorta
Term
blood enters the Aorta. name the next destination where blood will travel to
Definition
systemic circulation
Term
___________ is the functional blood
supply to the heart muscle itself
Definition
Coronary circulation
Term
___________ ensure blood delivery to heart
even if major vessels are occluded (obstructed)
Definition
Collateral routes
Term
Heart valves ensure _____?_____ blood flow through the heart
Definition
unidirectional
Term
lie between the atria and the ventricles
Definition
Atrioventricular (AV) valves
Term
AV valves prevent _____?______ when ventricles contract
Definition
backflow into the atria
Term
when does the 1st “lub” sound of the heartbeat happen?
Definition
when the AV valves are closing
Term
anchor AV valves to papillary muscles
Definition
Chordae tendineae
Term
lies between the left ventricle and the aorta
Definition
Aortic semilunar valve
Term
lies between the right ventricle and pulmonary trunk
Definition
Pulmonary semilunar valve
Term
prevent backflow of blood into the ventricles
Definition
Semilunar valves
Term
when does the 2nd “dup” sound of the heartbeat happen?
Definition
when the semilunar valves are closing
Term
________ muscle is striated, short, fat, branched, and interconnected
Definition
Cardiac muscle
Term
The connective tissue endomysium acts as both _____ and ______
Definition
tendon & insertion
Term
_______?____ anchor cardiac cells together and allow free passage of ions
Definition
Intercalated discs
Term
Heart muscle behaves as a functional ____?____
Definition
syncytium
Term
a syncytium is a _____?_____ that can result from multiple cell fusions of uninuclear cells
Definition
multinucleated cell
Supporting users have an ad free experience!