Study sets, textbooks, questions
Upgrade to remove ads
Terms in this set (93)
Site of damage that could cause a heart block
Phase of the cardiac cycle in which the AV valves close
The ventricles are said to exhibit __ when they beat in a rapid, uncoordinated fashion and do not effectively eject blood.
The death of a a patch of myocardium due to ischemia is clinically known as __ and likely to cause a heart attack.
In the aortic arch and carotid arteries there are pressure sensors called __, which help to monitor and regulate blood pressure.
Abnormally fast heart rate is known as __
This helps to prevent valvular prolapse during ventricular systole.
Superior vena cava
Empties into the right atrium.
Each ventricle ejects from 70 to 75 mL of blood in one beat. This figure is called the__.
heart rate and stroke volume
Cardiac output is a product is a product of __ and __.
Gradual depolarization of cells of the SA node, prior to the point where mimbrane voltage reaches the threshold, is called the -- potential.
Contraction of any heart chamber is called __.
A persistent, resting heart rate in excess of 100 beats/minute is called __.
If the SA node fails to function, other regions fo atrial myocardium called __ take over and trigger a rhythmic heartbeat, although at a slower rate
second heart sound
This is caused partly by closing of the semilunar valves ___.
This recieves blood that has circulated through the myocardium.
Milliliters of blood ejected by one beat of the left ventricle is known as __
simple squamous; endothelium
The endocardium is lined by a ___ epithelium called the __.
tricuspid, pulmonary, bicuspid, aortic
You are following the pathway of blood from the superior vena cava to the aora. What is the correct order of the valves through which the blood will pass?
When the left ventricle contracts the __ valve closes and the __ valve is pushed open.
O2 rich, CO2 poor; aorta
Blood, which is __, leaves the left side of the heart and is pumped into the ___.
The innermost lining of the heart wall is
women than in men
The heart rate tends to be higher in
the medula oblongata
The cardiac center, which modifies the heart rate, is located in:
the stroke volume
The amount of blood (mL) coming from one ventricle in one heartbear is called :
the pulmonary semilunar valve
Blood normally leaves the right ventricle through:
the quienscent period
The average resting cardiac cycle takes about 0.8 sec, including 0.1 sec for atrial systole, 0.3 sec for ventricular systole, and 0.4 sec for
the proximal end of the aorta
The coronary arteries arise from
The pressure peaks at about __mmHg in the left ventricle and at about __ mmHg in the right ventricle.
during atrial diastole
Most of the ventricle filling occurs
less than the pressure in the left ventricle; open
Blood moves into the aorta when the pressure in the aorta is __ is causing the aortic valve to __.
greater than in the left ventricle; dupp (S2)
The aortic semilunar valve shuts when the pressure in the aorta is __ and results in the __ heart sound.
Hypocalcemia will cause the heart rate to __ and hyperkalemia will cause heart rate to __.
Which one of the following parts of the conduction system directly stimulates the ventricles?
An individual is feeling severe chest pain, which radiates to the neck, jaw, shoulder, and left arm. The individual is showing symptoms of
aorta; right atrium
The coronary artery receives blood from the __, and the coronary artery empties blood into the __.
In mitral stenosis, one of the most common forms of valvular heart disease, when the ventricles contract blood will leak back into the
parietal; fibrous and serous layers
The heart is enclosed in a double-walled sac called the pericardium. The outer wall is called the __ paricardium and consists of
In the cardiovascular system, the __ circuit carries blood to and from the lungs, which is served by the __ side of the heart.
it will beat even it all the nerves to it are severed
Because the human heart is myogenic
Unlike skeletal muscle, cardiac muscle has
increasing the heart rate
Hypercapnia has the effect of
If end-diastolic volume is 108 mL, end-systolic volume is 35mL, and ejection fraction is 0.86, then the stroke volume must be
the Purkinje fibers
The conduction of electrical signals is fastest in
the T wave
The second heart sound immediately follows
the end-systolic volume
At the end of ventricular contraction, the amount of blood remaining in the ventricle is
slow ventricular filling
Diastasis is a period of
If the chordae tendineae of an animal's heart were cut, the most likely effect would be
less than the pressure in the left atrium; greater than the pressure in the left atrium
The mitral, or bicuspid valve, opens when the pressure in the left ventricle is__; and the mitral valve closes when the pressure in the left ventricle is __.
lubb (S1); ventricles contract
An individual has mitral valve prolapse, which generates a gurgling sound called a heart murmur. The murmur would be associated with the __ heart sound and occurs when the __
does not rely on anaerobic respiration
Cardiac muscle metabolism is different from skeletal muscle metabolism because cardiac muscle
anterior interventricular and circumflex arteries
The left coronary artery divides into the
tightens the chordae tendinae preventing the AV valves from prolapsing
When the ventricles contract, the papillary muscles also contract which
The cardiovascular system refers to all of the below except one. The area that is not a part of the cardiovascular system is the: heart, arteries, blood, capillaries, veins
arterial anastomoses in the coronary circulation
An anatomical arrangement that reduces the risk for the myocardial infarctions is
Isovolumetric contraction occurs during the __ of the electrocardiogram.
An arteriovenous __ is a route by which blood flows from an artery to a vein without passing through capillaries.
The middle layer of a blood vessel is called the
The lowest arterial blood pressure observed during the cardiac cycle is called the __ pressure.
At its inferior end, the aorta branches into right and left __ arteries.
arterial circle (Circle of Willis)
The __ is a complex of arteries on the base of the brain, surrounding the pituitary gland.
Intestinal blood enters the inferior side of the liver by way of the ___ vein.
Which term can be described as the artery that supplies the diaphragm?
Which term can be described as the route in which blood flows through two capillary beds in series before returning to the heart>
Which term describes a hormone that is a strong vasoconstrictor?
The muscles between the ribs are supplied by the anterior and posterior__.
the subclavian veins
Most blood from the brain flows down the internal jugular veins and then into __.
How many pulmonary arteries empty into the right atrium of the heart?
The major deep veins of the forearm are the __ on the medial side and the __ on the lateral side, respectively.
the superficial temporal artery
Immediately lateral to the eyebrow, you can palpate the pulse of__.
A weakened vessel that bulges during systole is called__.
Blood flow is directly proportional to__.
In a puncture of the dural sinus there is great danger of blocking cardiac output because of a (an) __.
Peripheral resistance is directly proportional to __.
Blood flow will decrease if__.
Water enters the blood capillaries by means of___
capillary bed; artery or vein
The common route for blood flow is heart-arteries- arterioles- capillaries- venules- veins- heart. There are exceptions to this route, noteable portal systems and anastomoses. In a portal system blood flows from one __ to another, while in the anastomoses blood flows from one __ to another.
You would expect to find the thickest tunica media in a
lumen; tunica media
The renal vein has a larger diameter than the renal artery with the renal vein having a larger __ but a smaller __.
Arteries like the aorta, pulmonary arteries, and common carotid arteries maintain pressure on blood during ventricular diastole and lessen the fluctuations in blood pressure. These are ___ arteries.
veins and lymphatic vessels
Valves are found in
destruction of valves in the wall of a vein
People who stand for long periods have pressure buildup, particularly in their superficial vessels, which may result in varicose veins.Varicose veins are caused by
milliliters of mercury; peak arterial pressure during systole
In the arterial blood pressure reading, for example in a young adult, the ratio is written 120/75. The 120 reading is in__ units and refers to__.
Hypertension, or high blood pressure is a chronic resting blood pressure higher than __ mmHg systolic or __mmHg diastolic.
A weak point in a blood vessel or heart wall that forms in a thin-walled, bulging sac that may rupture is called an a(n)
vasodilation; an increase
Anaphylactic shock can be caused by a hypertesive reaction, which individuals can have to such things as a bee sting or to penecillin. These individuals have massive release of histamine, which causes__ if blood vessels and ___ in atrialblood pressure.
atrial natriuretic peptide (ANP)
Which of the following hormones reduces blood pressure?
EP and angioteinsin II; EP
These two hormones are powerful vasoconstrictors;___> Of these two hormones, ___also stimulates and increase in heart rate.
The highest pressure that moves substances out of a capillary is __ pressure.
blood colloid osmotic pressure
The highest pressure that moves substances into a capillary is
The arterial supply for the upper limbs beings with the subclavian artery, which continues as the ___ and ___ arteries as blood flows toward the elbow.
The stomach, duodenum, pancreas, liver, and gall bladder are supplied by the ___ arteries.
The largest vein that drains the neck and head is the __ vein.
Recommended textbook explanations
Introduction to Anatomy and Physiology
Michelle Provost-Craig, Susan J. Hall, William C. Rose
Anatomy and Physiology
Connect Anatomy and Physiology with LearnSmart for Hole's Essentials of Anatomy & Physiology
David N. Shier, Jackie L. Butler, Ricki Lewis
Essentials of Human Anatomy & Physiology
Elaine N. Marieb
Sets found in the same folder
A & P Blood Vessels
ch 17 A&PII
Anatomy and Physiology Chapter 8 - Joints
Sets with similar terms
A&P 2 ch 15
Chapter 15: Cardiovascular
Chapter 15: Cardiovascular
Lab Quiz Cardiovascular System
Other sets by this creator
NCLEX Respiratory System
NCLEX Review - Lab Values
Lewis Med Surg Ch. 65 - Arthritis and Connective T…
Emergency, Terrorism, and Disaster Nursing nclex
Other Quizlet sets
MS: quiz 2
What are the actions of the semimembranosus muscle?
What is the microscopic tube in the kidney where urine is formed after filtration called?
How is the detrusor muscle controlled?
What is the origin of fetal blood cells?