“MARIOVILLE NURS 611 EXAM 3 () Comprehensive
Questions & Verified Answers”
acute inflammation of the pericardium - Answer-Acute Pericarditis
idiopathic or caused by viral infection - Answer-what is the etiology of pericarditis
drop in Arterial bp by more than 10 mmHg in inspiration - Answer-pulsus
paradoxus
arterial BP during expiration exceeds arterial pressure during inspiration by more
than 10 mmHg - Answer-What is pulsus paradoxus
dyspnea, tachycardia, jugular venous distention, cardiomegaly, and pulsus
paradoxus - Answer-symptoms of cardiac tamponade
what test do you do to check the functioning of a valve - Answer-Echocardiogram
enlarged, superficial veins; a twisted, dilated vein w/ incompetent valves -
Answer-varicose veins
(1) trauma to the saphenous veins that damages one or more valves, or (2)
gradual venous distention caused by the action of gravity on blood in the legs -
Answer-Causes of varicose veins
,When the ventricles relax, blood fills the cusps and causes their free edges to
meet in the middle of the vessel, closing the valve and preventing any backflow.
This selection is the only option that accurately explains why the aortic and
pulmonic valves close after the ventricles contract. - Answer-During the cardiac
cycle, why do the aortic and pulmonic valves close after the ventricles relax?
The papillary muscles are extensions of the myocardium that pull the cusps
together and downward at the onset of ventricular contraction, thus preventing
their backward expulsion into the atria - Answer-the heart's valves, what is a
function of the papillary muscles?
What is the process that ensures mitral and tricuspid valve closure after the
ventricles are filled with blood? - Answer-During ventricular relaxation, the two
atrioventricular valves open and blood flows from the higher pressure atria to the
relaxed ventricles. With increasing ventricular pressure, these valves close and
prevent backflow into the atria as the ventricles contract
Which chamber of the heart endures the highest pressures? - Answer-Pressure is
greatest in the systemic circulation, driven by the left ventricle.
Which cardiac chamber has the thinnest wall and why? - Answer-The two atria
have the thinnest walls because they are low-pressure chambers that serve as
storage units and conduits for blood that is emptied into the ventricles. This
selection is the only option that correctly identifies which heart chambers have
the thinnest walls and why that helps cardiac function
The major products secreted by the adrenal medulla are the catecholamines
epinephrine (adrenaline) and norepinephrine - Answer-Adrenal medulla
, Calcitonin, also called thyrocalcitonin, acts to lower serum calcium levels by
inhibiting bone-resorbing osteoclasts, making the other options incorrect. -
Answer-What is the action of calcitonin?
Target cells for parathyroid hormone are located in the - Answer-Parathyroid
hormone acts on its plasma membrane receptor only in the distal and proximal
tubules of the kidney's nephron.
Which compound or hormone is secreted by the adrenal medulla? - Answer-the
catecholamine epinephrine (adrenaline) is the only major product secreted.
Insulin transports which electrolyte in the cell? - Answer-Insulin facilitates the
intracellular transport of potassium, phosphate, and magnesium. Insulin does not
facilitate the transport of the other electrolytes
Hyperphosphatemia leads to hypocalcemia - Answer-What effect does
hyperphosphatemia have on other electrolytes
Which mineral is needed for thyroid-stimulating hormone (TSH) to stimulate the
secretion of thyroid hormone (TH)? - Answer-TSH, which is synthesized and stored
in the anterior pituitary, stimulates secretion of TH by activating intracellular
processes, including the uptake of iodine necessary for the synthesis of TH.
Releasing and inhibitory hormones are synthesized in the hypothalamus and are
secreted into the portal blood vessels through which they travel to the anterior
pituitary hormones - Answer-The releasing hormones that are made in the
hypothalamus travel to the anterior pituitary via the
Questions & Verified Answers”
acute inflammation of the pericardium - Answer-Acute Pericarditis
idiopathic or caused by viral infection - Answer-what is the etiology of pericarditis
drop in Arterial bp by more than 10 mmHg in inspiration - Answer-pulsus
paradoxus
arterial BP during expiration exceeds arterial pressure during inspiration by more
than 10 mmHg - Answer-What is pulsus paradoxus
dyspnea, tachycardia, jugular venous distention, cardiomegaly, and pulsus
paradoxus - Answer-symptoms of cardiac tamponade
what test do you do to check the functioning of a valve - Answer-Echocardiogram
enlarged, superficial veins; a twisted, dilated vein w/ incompetent valves -
Answer-varicose veins
(1) trauma to the saphenous veins that damages one or more valves, or (2)
gradual venous distention caused by the action of gravity on blood in the legs -
Answer-Causes of varicose veins
,When the ventricles relax, blood fills the cusps and causes their free edges to
meet in the middle of the vessel, closing the valve and preventing any backflow.
This selection is the only option that accurately explains why the aortic and
pulmonic valves close after the ventricles contract. - Answer-During the cardiac
cycle, why do the aortic and pulmonic valves close after the ventricles relax?
The papillary muscles are extensions of the myocardium that pull the cusps
together and downward at the onset of ventricular contraction, thus preventing
their backward expulsion into the atria - Answer-the heart's valves, what is a
function of the papillary muscles?
What is the process that ensures mitral and tricuspid valve closure after the
ventricles are filled with blood? - Answer-During ventricular relaxation, the two
atrioventricular valves open and blood flows from the higher pressure atria to the
relaxed ventricles. With increasing ventricular pressure, these valves close and
prevent backflow into the atria as the ventricles contract
Which chamber of the heart endures the highest pressures? - Answer-Pressure is
greatest in the systemic circulation, driven by the left ventricle.
Which cardiac chamber has the thinnest wall and why? - Answer-The two atria
have the thinnest walls because they are low-pressure chambers that serve as
storage units and conduits for blood that is emptied into the ventricles. This
selection is the only option that correctly identifies which heart chambers have
the thinnest walls and why that helps cardiac function
The major products secreted by the adrenal medulla are the catecholamines
epinephrine (adrenaline) and norepinephrine - Answer-Adrenal medulla
, Calcitonin, also called thyrocalcitonin, acts to lower serum calcium levels by
inhibiting bone-resorbing osteoclasts, making the other options incorrect. -
Answer-What is the action of calcitonin?
Target cells for parathyroid hormone are located in the - Answer-Parathyroid
hormone acts on its plasma membrane receptor only in the distal and proximal
tubules of the kidney's nephron.
Which compound or hormone is secreted by the adrenal medulla? - Answer-the
catecholamine epinephrine (adrenaline) is the only major product secreted.
Insulin transports which electrolyte in the cell? - Answer-Insulin facilitates the
intracellular transport of potassium, phosphate, and magnesium. Insulin does not
facilitate the transport of the other electrolytes
Hyperphosphatemia leads to hypocalcemia - Answer-What effect does
hyperphosphatemia have on other electrolytes
Which mineral is needed for thyroid-stimulating hormone (TSH) to stimulate the
secretion of thyroid hormone (TH)? - Answer-TSH, which is synthesized and stored
in the anterior pituitary, stimulates secretion of TH by activating intracellular
processes, including the uptake of iodine necessary for the synthesis of TH.
Releasing and inhibitory hormones are synthesized in the hypothalamus and are
secreted into the portal blood vessels through which they travel to the anterior
pituitary hormones - Answer-The releasing hormones that are made in the
hypothalamus travel to the anterior pituitary via the
