Circulatory System Test
The entire volume of blood in the circulatory system gets pumped through the heart in about ____ minute(s).
1
Normal blood pressure would read ___/___.
120/70
The cardiac output of the heart is about ____ liters.
5.25
The average circulatory system holds about ___ liters.
5.5
A normal pulse would be about _____ bpm.
60-80
An average heart rate is ____ beats per minute.
75
If the SA node is destroyed or fails in function, the _____ will act as a secondary pacemaker.
AV node
The link between the subclavian & brachial artery is _______ artery.
Ascending
Artery between the subclavian and brachial.
Axillary
The three arteries that originate along the aortic arch & deliver blood to the head, neck, shoulders, & arms are the _______.
Brachiocephalic, Left Common Carotid, and Left Subclavian
Three arteries that branch off the aortic arch.
Brachiocephalic, Left Common Carotid, and Left Subclavian
A heart rate of less than 60 beats per minute is called _________.
Bradycardia
The only blood vessels whose walls permit exchange between the blood & surrounding interstitial fluids are the _______.
Capillaries
First artery to branch off the abdominal aorta.
Celiac
Artery(s) that split at the bottom of the abdominal aorta.
Common Illiac
Artery that supplies blood to the heart muscle.
Coronary
The outer layer of a blood vessel is the tunica ______.
Externa
Large artery that runs through the thigh region.
Femoral
Artery that supplies blood to the stomach.
Gastric
The coronary arteries carry blood to the _____.
Heart
The large blood vessel that collects most of the venous blood from the organs below the diaphragm is the ________.
Inferior Vena Cava
Arteries Diagram
Left External Carotid, Subclavian, Brachiocephalic Trunk, Axillary, Brachial, Celiac Trunk, Renal, Superior Mesenteric, Abdominal Aorta, Ulnar, Inferior Mesenteric, Radial, Common Illiac, External Illiac, Femoral, Popliteal, Anterior Tibial, Posterior Tibial.
The three arterial beaches off the celiac trunk are _______.
Left Gastric Artery, Splenic Artery, and Common Hepatic Artery
Three arteries that branch off the celiac trunk.
Left Gastric Artery, Splenic, and Common Hepatic
Smooth muscle fibers in arteries & veins are found in the tunica _____.
Media
What is the space between the lungs called?
Mediastinum
Artery that runs behind the knee.
Popliteal
Artery that runs through the calf region.
Posterior Tibial
Only artery that carries deoxygenated blood.
Pulmonary
Artery used in taking wrist pulse.
Radial
The blood vessel involved in the taking of blood pressure at the wrist is the ______ artery.
Radial
Artery that supplies blood to the kidneys.
Renal
The two arteries that are formed from the bifurcation of the brachiocephalic artery are the _____.
Right Subclavian and Right Common Carotid
Two arteries that split off the brachiocephalic.
Right Subclavian and Right Common Carotid
The correct sequential path of a normal action potential in the heart is _____.
SA node -> AV node -> bundle of His -> Purkinje fibers
What three organs are fed by the celiac trunk?
Stomach, Spleen, and Liver
Artery that supplies blood to the upper intestines.
Superior Mesenteric
Diagram of the heart.
Superior Vena Cava, Pulmonary Semilunar Valve, Right Atrium, Tricuspid Valve, Right Ventricle, Chordae Tendinae, Inferior Vena Cava, Aorta, Left Pulmonary Valve, Aortic Semilunar Valve, Left Pulmonary Valves, Left Atrium, Bicuspid Valve, Interventricular Septum, and Left Ventricle.
Blood from the systemic circulation is returned to the right atrium by what two veins?
Superior and Inferior Vena Cava
The valve between the right ventricle and right atrium is the ________.
Tricuspid
What are the three structural differences between arteries and veins? (answers vary)
Valves, size of lumens, and thickness of walls
Venues would be found between _____ and _____.
Veins and Capillaries
The function of the chordate tendinae is to ________.
anchor the atrioventricular valves and prevent the back-flow of blood into the atria
Pulmonary veins ________.
carry oxygenated blood to the heart
The right side of the heart pumps ________ blood.
deoxygenated
The largest vein of the body is the ________ vena cava.
inferior
The bundle of His is located in the _________.
interventricular septum
The aortic semilunar valve prevents blood from re-entering the _________.
left ventricle
Heart failure due to clogged coronary arteries is called ________.
myocardial infarction
Blood from the systemic circulation is returned to right atrium by the _______.
superior and inferior vena cava
The contraction phase of the heart is called ______.
systole
What is the functional unit of the circulatory system and the of nutrient & gas exchange?
the Capillaries
What causes the "Lubb-dubb" sound of the heart?
the valves slamming shut
The SA node of the heart is located in the________.
upper right part of the right atrium
What is occurring during the QRS phase of an EKG?
ventricle repolarization
The epicardium is the same as the _________.
visceral pericardium
