WSU BIOLOGY 315 Lab Exam 3
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461 Terms
Apex of Heart
On the bottom left side (portion)
Base of Heart
TA will choke heart
Right Atrium of Heart (External)
TA will tap it
Right Auricle of Heart
Ear-like structure
Above atrium
Left Atrium of Heart (External)
Left Auricle of Heart
Above atrium
Right Ventricle of Heart
A space
Left Ventricle of Heart
Anterior Surface of Heart
Front of heart
Diaphragmatic Surface of Heart
Where diaphragm meet apex
TA hand will be flat
Right Pulmonary Surface of Heart
Formed by right atrium
TA will use a chopping motion
Left Pulmonary Surfaces
Formed by left ventricle
TA will use a chopping motion
Right Border of Heart
Opposite apex
Left Border of Heart
Apex side
Inferior Border of Heart
Superior Border of Heart
Coronary Sulcus
Upper depression
Anterior Interventricular Sulcus
Front side
Posterior Interventricular Sulcus
Back side
Aorta
Largest upper structure
Ascending Aorta
First part
Arch of Aorta
Follows ascending aorta
Pulmonary Trunk
Entire structure
Left Pulmonary Artery
On the left side
Right Pulmonary Artery
On the back side
Ligamentum Arteriosum Location
Webbing between aorta and pulmonary trunk
Ligamentum Arteriosum Board Question
Vestige of the fetal ductus arteriosus, which shunted blood in the pulmonary trunk away from the lungs in the fetus
Superior Vena Cava
Upper, posterior
Inferior Vena Cava
Lower, posterior
Pulmonary Veins
Left Superior Pulmonary Veins
Upper tube, apex-side of probe
Left Inferior Pulmonary Veins
Lower tube, apex-side of probe
Right Superior Pulmonary Veins
Upper tube, probe side opposite the apex
Right Inferior Pulmonary Veins
Lower tube, probe side opposite the apex
Coronary Arteries
Upper boarder, a structure
Right Coronary Artery
Under right auricle (structure)
Right Marginal Artery of the Right Coronary Artery
Below right coronary artery
Posterior Interventricular Artery
Posterior, middle
Left Coronary Artery
Under left auricle
Anterior Interventricular Artery
Anterior, middle
Circumflex Artery
Squiggly, on left ventricle
The Right Coronary Artery Supplies:
Right atrium, most of the right ventricle, part of the left ventricle, the SA and AV nodes
The Left Coronary Artery Supplies:
Left atrium, most of the left ventricle, part of the right ventricle, the interventricular septum
Cardiac Veins
Posterior T
Coronary Sinus
Top of the T
Probe inside
Great Cardiac Vein
Left part of the T
Middle Cardiac Vein
Base of the T
Darker
Small Cardiac Vein
Loop off the marginal artery
Fibrous Pericardium
Outside of the flap
Serous Pericardium
Inside of the flap
Parietal Layer of Serous Pericardium (external covering)
Shiny part of the flap
Visceral Layer (Epicardium) of the Serous Pericardium (internal covering)
On the heart
Pericardial Cavity
Between the flap and the heart
Transverse Pericardial Sinus Board Question
Connects the left and right sides of the pericardial cavity
Olbique Pericardial Sinus Board Question
Surrounded by the pulmonary veins, the SVC, and IVC
Endocardium
Inner layer
Myocardium
Thicker
Epicardium
Most outer layer
Interatrial Septum
Will be pinched
Fossa Ovalis Location
Less dark
Fossa Ovalis Board Question
Indicates the location of the fetal foramen ovale where blood was shunted from right atrium to left atrium in the fetus
Right Atrium
A chamber
Will be tapped
Pectinate Muscle
Dark, branching
Sinus Venarum
Lighter, smooth, internal
Opening of the Superior Vena Cava
Top of probe
Opening of the Inferior Vena Cava
Bottom of probe
Opening of the Coronary Sinus
Small space
Left Atrium
Two probes inside chamber
Left Auricle of Heart
Looks like an ear
Openings of the Pulmonary Veins
Where the two probes are
A collective space
Interventricular Septum
Whiter, below auricle
Muscular Part of the Interventricular Septum
Thicker, inferior
Membranous Part of the Interventricular Septum
Thinner, superior
Right Ventricle
Right Atrioventricular Orifice
Space with teeth
Tricuspid Valve
Probe through the right atrioventricular orifice
Papillary Muscles
The carrot itself, thicker
Tendinous Cords
Cords on papillary muscle
Greens of carrot
Trabeculae Carnae
Roots of the carrot
Conus Arteriosus
Cone shaped narrowing
Opening of the Pulmonary Trunk
Probe through large opening
Pulmonary Valve
The valve in the trunk
Semilunar Cusps of Pulmonary Valve
Components of the valve
Left Ventricle
Left Atrioventricular Orifice
Space with teeth on left side
Mitral Valve
Probe through left atrioventricular orifice
Aortic Vestibule
Narrowing approaching the aorta
Triangle shaped
Opening of the Ascending Aorta
Whole space
Includes aortic vestibule
Aortic Valve
Probe through
Semilunar Cusps of the Aortic Valve
Components of the aortic valve
The Four Heart Valves
Tricuspid, pulmonary, mitral, aortic
Try pulling my aorta
3
Number of Cusps in Tricuspid Valve
2
Number of Cusps in Mitral Valve
3
Number of Cusps in Pulmonary Valve
3
Number of Cusps in Aortic Valve
Sino-Atrial Node (SA Node) Board Question
The pacemaker of the heart
Circulation of Blood Through the Heart
Veins -> superior/inferior vena cava -> right atrium -> right ventricle (via tricuspid valve) -> pulmonary trunk (via pulmonary valve) -> left/right pulmonary arteries -> lungs -> pulmonary veins -> left atrium -> left ventricle (via mitral valve) -> aorta (via aortic valve) -> arteries -> capillaries
When Blood is Oxygenated in Circulation Steps
Steps from lungs to capillaries
When Blood is Deoxygenated in Circulation Steps
Steps from veins to pulmonary arteries
Difference Between Arteries and Veins
Arteries: round, away from heart, lighter in cadaver
Veins: flat, toward heart, darker in cadaver