Quiz 1/ Practical Flashcards
the primary formed element of the blood; biconcave disc-shaped cell that transports oxygen and carbon dioxide on its hemoglobin molecules
erythrocyte
a class formed elements of blood that perform functions relating to the immune system
leukocyte
contain cytoplasmic granules that the cells release when activated
granulocytes
lack visible cytoplasmic granules
agranulocytes
- nucleus has 3-5 lobes
* cytoplasmic granules are not visible
neutrophil
- nucleus is bilobed
* cytoplasmic granules stain red
eosinophil
- nucleus is S-shaped
* cytoplasmic granules stain dark purple
basophil
which classes/types of leukocytes are considered to be granulocytes?
- neutrophil
- eosinophil
- basophil
- nucleus is spherical
* thin rim of light blue cytoplasm becomes visible when cell is stained
lymphocyte
- nucleus is U-shaped
* light blue to purple cytoplasm
monocyte
which classes/types of leukocytes are considered to be agranulocytes?
- lymphocyte
* monocyte
- most common type of leukocyte making up 60-70% of total leukocytes in blood
- attracted to injured cells
- directly kill bacteria by phagocytosis
neutrophils
- this leukocyte only accounts for less than 4% of total leukocytes in blood
- involved in the body’s response to infection with parasitic worms and in allergic reactions
eosinophils
- least common leukocyte
- makes up less than 1% of total leukocytes in the blood
- release chemicals from their granules that mediate inflammation
basophils
- second most numerous type of leukocyte
- makes up to 20-25% of total leukocytes of blood
- contain two basic types that are activated by cellular markers called antigens
lymphocytes
- the largest leukocytes
- accounts for 3-8% of the total leukocyte population
- some mature into very active phagocytes called macrophages
monocytes
- smallest of the formed elements
- involved in hemostasis
- not true cells, small fragments of cells surrounded by a plasma membrane
- lack nuclei
platelets
the cells and cell fragments suspended into the plasma
formed elements
what are the three types of formed elements found in blood?
erythrocytes
leukocytes
platelets
a protein with four polypeptide subunits, each associated with a iron-containing heme group
hemoglobin
what is the order of development of an erythrocyte?
hematopoietic stem cell -> proerythroblast -> erythroblast -> reticulocyte -> erythrocyte
old and damaged erythrocytes are destroyed in this organ?
spleen
stoppage of blood loss from an injured vessel
hemostasis
a collections of platelets, clotting proteins, and other formed elements
blood clot
what are the phases of hemostasis?
vascular spasm platelet plug formation coagulation clot retraction thrombolysis
what are the two major groups of erythrocyte antigens?
ABO and Rh group
what is blood typing based on?
the presence or absence of antigens from the ABO and Rh groups
what are the three type of antibodies found in blood?
A- antibodies
B- antibodies
Rh- antibodies
how is blood type determined?
by treating erythrocytes with antibodies and watching for agglutination reactions
which blood type is the universal donor?
Type- O
lack antigens of the ABO and Rh groups
which blood type is the universal recipient?
Type AB+
lacks anti A, anti B, and anti-Rh antibodies
decreased oxygen-carrying capacity of blood
Anemia
two-sided pump that drives blood into the blood vessels
heart
where does the atria receive and pump blood?
the atria receive blood from the veins and pump blood into the ventricles
where does the ventricles pump blood?
the ventriclespump blood into the arteries
what is the function of the right side of the heart?
pulmonary pump that pumps deoxygenated blood through the vessels of the pulmonary circuit
what is the function of the left side of the heart?
systemic pump that drives oxygenated blood through the systemic circuit
what are the three layers of the heart wall?
pericardium
myocardium
endocardium
what are the two layers of the pericardium?
fibrous pericardium
serous pericardium
what are the two layers of the serous pericardium?
parietal pericardium
visceral pericardium
what is the serous fluid layer called between the parietal and visceral pericardium?
pericardial cavity
consists of the coronary arteries, which supply the myocardium with blood, and the coronary vein, which drain the myocardium
coronary circulation
what are the main two branches of the left coronary artery?
anterior interventricular artery
circumflex artery
the large vessel that receives blood from the coronary veins and empties it into the right atrium
coronary sinus
what are the 3 veins that the coronary sinus receives blood from?
great cardiac vein
middle cardiac vein
small cardiac vein
what are the 4 main great vessels?
- venae cavae “(superior & inferior)
- pulmonary trunk
- pulmonary veins
- aorta
what are the 2 atria separated by?
interatrial septum
what are the 2 ventricles separated by?
interventricular septum
why is the left ventricle wall thicker than the right ventricle?
pumps against higher pressure
blood flowing into the ventricles passes through which valves?
tricuspid valve
mitral valve
blood flowing out of the ventricles passes through what 2 valves?
aortic valve
pulmonary valve
the structure that joins the aorta and pulmonary trunk?
ligamentum arteriosum
- upper chamber of the heart
- receives blood from the superior and inferior vena cava and coronary sinus
- sends the blood to the right ventricle
right atrium
- upper chamber of the heart
- receives blood from the pulmonary veins
- sends the blood to the left ventricle
left atrium
flap-like extension that expands to increase the volume blood the atrium may hold
auricle
- lower chamber of the heart
- receives blood from the right atrium
- sends blood to the pulmonary trunk
right ventricle
- lower chamber of the heart
- receives blood from the left atrium
- sends blood to the aorta
left ventricle
- carries deoxygenated blood to the right atrium
* drains upper regions of the body
superior vena cana
- carries deoxygenated blood to the left atrium
* drains lower regions of the body
inferior vena cava
*carries oxygenated blood to the systemic arteries *receives from the left ventricle
aorta
- carries oxygenated blood from right lung
* delivers to left atrium
right pulmonary veins
- carries oxygenated blood from the left lung
* delivers to left atrium
left pulmonary veins
- carries deoxygenated blood to the pulmonary arteries
* receives from the right ventricle
pulmonary trunk
- arises from right side of aorta
- occupies coronary sulcus
- small branches supply right atrium
- divides into posterior interventricular artery and marginal arteries
right coronary artery