anatomy midterm practice questions

Isovolumetric ventricular contraction takes place immediately after ventricular depolarization when ventricular pressure becomes greater than atrial pressure and the AV valve closes

True

False

true

Conduction system number 4 corresponds to:

Purkinje Fibers

Right and left bundle branches

Bundle of His

bundle of his

conduction system of the heart, number 1 corresponds to”

AV node

Sinus node

Internodal pathway

sinus node

in the cardiac cycle the step number 5 corresponds to

isovolumetric ventricular contraction

passive ventricular filling

isovolumetric ventricular relaxation

all are false

passive ventricular filling

in the cardiac cycle the step number 3 corresponds to

isovolumetrical ventricular relaxation

atrial relaxation

isovolumetrical ventricular contraction

isovolumetrical ventricular contraction

the main phases of inflammation are: vasoconstriction, chemotaxis and phagocytosis

true

false

false

the clinical signs of inflammation are: tumor, blush, heat, pain and loss of normal function

true

false

true

lymphocytes and monocytes are agranulocytes

true

false

true

the main function of the basophil is to phagocytize bacteria

true 

false

false

the main function of the neutrophil is to kill parasitic worms

true

false

false

Integrins bind to ICAMI and are responsible for reaching a stable adhesion

true

false

true

the main function of the monocyte is the phagocytosis. Develop into macrophages in the tissues

true

false

true

serotonin and thromboxane A2 are vasodilators

true

false

false

the migration of neutrophils is done with the help of PECAM1

true

false

true

von willebrand participates in the adhesion of the platelets

true

false

true

integrins are responsible for the rolling movement in the inflammatory response

true

false

false

The main phases of inflammation are: vasoconstriction, chemotaxis and phagocytosis

true

false

false

the inflammatory response involves vasodilation, increased permeability of blood vessels, phagocyte migration and phagocytosis

true

false

true

the main function of the neutrophil is to kill parasitic worms

true

false

false

the main function of the basophil is to phagocytize bacteria

true

false

false

Angiotensin II stimulates the secretion of aldosterone

true

false

true

angiotensin II is a potent vasodilator

true

false

false

the ion responsible of phase 3 is:

sodium

potassium

calcium

calcium and potassium

potassium

Phase 2: plateau of the action potential in the ventricular muscle fiber is due to potassium going in and calcium out

true

false

true

phase 0 corresponds to

depolarization of ventricular muscle fiber. sodium ions does inside the cell

end diastole volume is the total volume of blood that is in the ventricles before contraction begins

true

false

true

in the cardiac cycle the step number 2 corresponds to

isovolumetrical ventricular contraction

atrial natriuretic peptide increases sodium excretion by the kidneys and decreases blood pressure

true

false

true

myocytes provide cardiac pacing system capable of modulating speed of beat

true

false

true

renal system have mechanisms of regulation of blood pressure in the long term (days, months, years)

true

false

true

sinoatrial node has an unstable resting potential

true

false

true