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The atria of the heart:
Are located superiorly and are the receiving chambers of the heart
Atrioventricular valves:
Prevent backflow of blood into the atria when the ventricles contracts
The layer of the heart wall that contains cardiac muscle tissue is the:
Myocardium
The pulmonary semilunar valve is found between the:
Right ventricle and pulmonary trunk
The bicuspid valve is found between the:
Left atrium and left ventricle
Which of the following is the correct path for the transmission of an impulse in the intrinsic conduction system of the heart?
Sinoatrial node, atrioventricular node, atrioventricular bundle (bundle of His), bundle branches, purkinje fibers
Which of the following statements regarding the heart is FALSE?
The myocardium of the right ventricle is thicker than the left ventricle
During mid-to-late diastole of the cardiac cycle:
Atrioventricular valves are open; semilunar valves are shut
Which portion of the intrinsic conduction system travels down the interventricular septum towards the apex of the heart?
Right and left bundle branches
The pacemaker cells of the heart are located in the:
SA node
The superior vena cava carries ___________ blood to the ____________.
Oxygen poor; heart
Which of the following is NOT associated with the ventricles?
Pectinate muscles
Which circulation carries blood to the body and back to the heart?
Systemic
Which blood vessel carries oxygen rich blood?
Pulmonary vein
Veins always carry blood towards the heart.
True
Blood flows from the right ventricle into the:
Pulmonary trunk
Blood flows from the left ventricle into the:
Aorta
Which chamber receives blood from the superior and inferior vena cava?
Right atrium
The foramen ovale:
Permits blood flow between the right and left atria in the fetus
The function of blood is:
all of these
All blood cells are produced in the:
Red bone marrow
If a person suffers significant blood loss due to an injury, there will likely be an increase in secretion of erythropoietin (EPO) from the kidneys. What will be the result of this action?
The rate of erythrocyte maturation will increase.
Erythrocytes are the most abundant formed elements in the blood.
True
Megakaryocytes produce:
platelets
A leukocyte with distinct bright orange-red cytoplasmic granules is called a(n) ________.
eosinophil
The type of leukocyte that would increase rapidly during allergies and infections of parasitic worms is:
Eosinophils
Leukocytes are crucial to:
Preventing and fighting off infections
Plasma comprise approximately _______percent of the total blood volume.
55
Which of the following are granulocytes?
Neutrophils, eosinophils, and basophils
Which type of capillaries are most permeable and have large leaky pores:
Sinusoids
The radial artery is an example of a:
Muscular artery
Which arteries fuse to form the basilar artery?
vertebral arteries
The longest vein in the body is the ________.
great saphenous vein
The end of the aorta occurs when the vessel bifurcates into the ________.
common iliac arteries
Oxygenated blood is supplied to the brain through the __________.
internal carotid arteries
Which of the following organs drains its blood through the hepatic portal system?
stomach
The first three arteries that branch directly off of the aorta are:
Brachiocephalic, left common carotid, left subclavian
The innermost layer of a blood vessel, which includes the endothelial lining and an underlying layer of connective tissue, is the:
tunica interna (intima)
Which of the following statements is true?
The farther away the blood vessel is from the heart, the smaller the diameter it has.
Which vessels collect blood from capillaries?
venules
Factors that aid in venous return include all except:
urinary output
Which of the following are functions of the lymphatic system in the body?
All of these
The lymph tissue found on the posterior wall of the nasopharynx is the
pharyngeal tonsil
Which is NOT TRUE regarding the spleen?
it has an outer cortex and inner medulla
Where do T-cells mature?
thymus
Which cell population primarily functions in providing antibody-mediated or humoral immunity?
B cells
The right lymphatic duct:
Drains lymph from the right head, torso, and arm
Lymph enters the lymph node via:
Afferent vessels
The lymph tissue found in the walls of the small intestines are called:
Peyer’s patches
Which of the following regions does NOT contain a high population of lymph nodes?
Temporal region
The thymus:
Is responsible for the maturation of T-cells
Lipids absorbed in the digestive tract enter ________ in the intestinal wall.
lacteal
Which lymph nodes would you expect breast cancer most likely metastasize to first?
axillary lymph nodes
The layer of the heart wall that is composed of simple squamous epithelium lining the outer superficial surface of the heart
Epicardium
The tricuspid valve is found between the:
Right atrium and right ventricle
The aortic semilunar valve is found between the:
Left ventricle and aorta
The aorta carries ___________ blood to the ____________.
Oxygen rich; body
Which circulation carries blood to the lungs and back to the heart?
Pulmonary
Which blood vessel carries oxygen poor blood?
Pulmonary artery
The pulmonary veins empty:
Oxygen rich blood into the left atrium
All blood cells are produced in the:
Red bone marrow
Lymphocytes are the most numerous leukocytes.
False
The function of thrombocytes is to:
Prevent blood loss through coagulation
The primary function of hemoglobin is to:
Carry oxygen to tissues
Together, leukocytes and platelets comprise approximately _______percent of the total blood volume.
1
The aorta artery is an example of a:
Elastic artery
The hepatic portal vein carries blood ________.
high in nutrients
Which of the following arteries is a paired branch off the abdominal aorta?
renal
Which blood vessel tunic lines the lumen of the blood vessel?
tunica interna (intima)
Compared to a vein the wall of an artery differs in which of the following ways:
Its tunica media contains more smooth muscle than a vein
Which of the following is NOT a lymphoid organ?
pancreas
The lymph tissue found between the palatoglossal and palatopharyngeal arches is the:
palatine tonsils
Which of the following is FALSE regarding the spleen?
It lies inferior to the liver
Lymph from the lower extremities would eventually drain into the:
thoracic duct
pectinate muscles
which chamber recieves blood from the pulmonary veins
left atrium
the ductus arteriosus
Is a connection between the pulmonary trunk and aorta in the fetal circulation
which of the following statements does not describe erythrocytes
they play a role in blood clotting
Basophils assist mast cells in tissues by producing histamine and triggering inflammation
true
Which of the following are agranulocytes
lymphocytes and monocytes
The femoral artery is an example of a
muscular artery
The rectum and terminal portion of the colon such as the descending colon are supplied by which vessel?
inferior mesenteric artery
The lateral side of the arm and the forearm contains a long superficial vein named the ________.
cephalic vein
The cerebral arteries of the Circle of Willis circles which structure?
the infundibulum of the pituitary gland
Which blood vessel tunic is composed of smooth muscle?
tunica media
Factors that aid in venous return include all except:
urinary output
The red pulp of the spleen
is the part of the spleen where worn out erythrocytes are destroyed
Which of the following best describes the difference in the way B cells and T cells deal with invading pathogens?
B cells produce antibodies in response to antigens; T cells attack infected cells themselves
The left thoracic duct:
Drains lymph from the left arm, head, and cisterna chyli
which is the least common type of white blood cell
basophils
In the kidneys, where solutes from the blood need to be filtered into the urine, which of the following vessels can be found?
fenestrated capillaries
The layer of the heart wall that is composed of simple squamous epithelium lining the chambers of the heart:
Endocardium
Which portion of the intrinsic conduction system branches to the outer ventricle walls?
Purkinje fibers
The pulmonary trunk carries_ blood to the_
oxygen poor; lungs
Which of the following is NOT associated with the right atrium?
Papillary muscles
Which of the following is FALSE regarding neutrophils?
They are the least abundant leukocyte
Erythrocytes comprise approximately _______percent of the total blood volume.
45
the function of erythrocytes is to
transport oxygen in the blood
where do b cells mature
bone marrow
Note 
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