anatomy ******** ch.11

mitral

The bicuspid valve is also referred to as the ________ valve.

drains blood from the radial and ulnar veins, then empties that blood into the axillary vein

The brachial vein ________.

D

The bundle branches are indicated by ________.

coronary sinus

The coronary veins empty blood from the myocardium into a large vein on the posterior side of the heart known as the ________

tunica externa, tunica media, tunica intima

The correct sequence of layers of a typical blood vessel, from superficial to deep, are ________.

P

The electrocardiogram (ECG) wave that results from the firing of the sinoatrial (SA) node is the ________ wave.

neck

The external carotid artery serves the skin and muscles of the head and ________.

atrioventricular (AV)

The first heart sound, "lub," is caused by the closure of the ________ valves.

microcirculation

The flow of blood through a capillary bed is called ________.

mediastinum

The heart is situated within the medial section of the thoracic cavity known as the ________.

closure of heart valves

The heart sounds "lub" and "dup" result from ________.

common iliac vein

The internal iliac vein empties blood directly into the ________.

aorta

The largest artery in the body is the ________.

epicardium

The layer of the heart wall synonymous with the visceral layer of the serous pericardium is ________.

myocardium

The layer of the heart wall that receives the stimulus from letter E is called the ________.

pulmonary veins

The left atrium receives blood from the ________.

0.8

The length of the cardiac cycle is normally ________ second(s) in length.

great saphenous veins

The longest veins in the body drain the leg and are the ________.

when the ventricle is in systole

The mitral valve is normally closed _______

left ventricle to the left atrium

When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the ________.

contract

When ventricles ________, the AV valves are closed.

anterior interventricular and circumflex arteries

Which blood vessels are direct branches of the left coronary artery?

celiac artery

Which of the following arteries is the first branch of the abdominal aorta?

right and left coronary arteries

Which of the following blood vessels is a direct branch of the ascending aorta?

epinephrine

Which of the following increases heart rate?

heart is relaxed

Which of these events is NOT associated with ventricular systole?

aortic arch, left subclavian artery, left axillary artery, left brachial artery

Which of these pathways correctly traces blood as it travels from the aortic arch to the left arm?

pulmonary vein

Which one of the following blood vessels carries oxygenated blood?

right common carotid artery

Which one of the following does NOT receive blood directly from the aortic arch?

sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle (bundle of His), right and left bundle branches, Purkinje fibers

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart?

capillaries

Which type of vessel is constructed only from tunica intima?

aortic semilunar valve

Which valve guards the base of the aorta and opens when the ventricles are contracting?

brachiocephalic vein

Which vein returns blood to the superior vena cava?

coronary sinus

Which vessel carries deoxygenated blood from cardiac circulation to the right atrium of the heart?

liver

What organ receives blood from the hepatic portal vein?

interatrial septum

What structure divides the left atrium from the right atrium?

venules

Capillary beds are drained by vessels known as ________

4500 mL/minute

A person with a heart rate of 75 beats per minute and a stroke volume of 60 mL per beat has a cardiac output of ________.

pulmonary

Arteries are normally depicted as red while veins are colored blue. The exceptions to this rule are the ________ arteries and veins.

aorta

Blood leaves the left ventricle through an artery known as the ________.

internal carotid arteries

Branches of the common carotid arteries, known as the ________, travel through the neck into the skull through the temporal bone to supply the brain and cerebral arterial circle (circle of Willis) with blood.

ventricles

During mid-to-late diastole, blood flows from the atria to the ________.

arteries

Large blood vessels that carry blood away from the heart are called ________.

valves

Large veins have ________ to prevent the backflow of blood.

C

The atrioventricular bundle (bundle of His) is represented by ________

75

The average heart beats about ________ times per minute.

coronary arteries

Oxygented blood nourishing the myocardium comes from vessels that branch off the aorta called ________.

blood rich in carbon dioxide to the lungs

Pulmonary arteries transport ________.

lungs

Pulmonary circulation involves blood flow to and from the heart and the ________.

E

The Purkinje fibers are indicated by ________.

B

The atrioventricular (AV) node is indicated by ________

kidneys

The organs served by the renal arteries and veins are the ________

interventricular septum

The partition where the bundle branches are located is called the ________.

arteries, arterioles, capillary beds, venules, veins

The path of blood flow within the systemic vascular system is ________.

apex

The pointed, inferior portion of the heart, known as the ________, rests on the diaphragm and is oriented toward the left hip.

hepatic portal vein

The single vessel that drains blood from the digestive tract organs to the liver is the

A

The sinoatrial (SA) node is indicated by ________

right atrium

The sinoatrial node is located in the ________.

pacemaker

The sinoatrial node, located in the right atrium of the heart, is often called the ________.

systole

The term that means heart contraction is ________.

chordae tendineae

The tiny white cords that anchor the cusps or flaps of endocardium to the walls of the ventricles are called the ________.

pulmonary

The transportation of blood from the right side of the heart to the lungs and back to the left side of the heart is known as ________ circulation.

right atrium and right ventricle

The tricuspid valve is located between the ________.

atria; ventricles

The two superior receiving chambers of the heart are known as the ________, while the two inferior discharging chambers of the heart are known as the ________

heart rate to decrease

The vagus nerve operates under the control of the parasympathetic nervous system and causes the ________.

atrioventricular (AV)

The valves located between the atria and ventricles are known as the ________ valves.

epicardium

The visceral layer of the serous pericardium is actually the same layer as the ________.

stroke volume

The volume of blood pumped out by each ventricle with each beat of the heart is called the ________.

stroke volume (SV)

The volume of blood pumped out of a ventricle with each heartbeat is known as ________.

left ventricle

The walls of the ________ are substantially thicker because that chamber acts as the more powerful systemic pump of the heart.

media

Tunica ________, the middle layer of a typical blood vessel, contains smooth muscle and elastic fibers.

often have valves to prevent the backflow of blood

Veins ________.

superior vena cava

Veins draining the head and arms empty into the ________, which carries blood to the right atrium of the heart.

chordae tendineae

What anchors the flaps of the atrioventricular valves to the walls of the ventricles?

sinoatrial (SA) node

You notice a missing P wave on a patient's electrocardiogram (ECG) and believe there is a problem with the ________.