5527733
Pregunta 1
Pregunta
Which of the following is a right to left shunt in the fetus?
Respuesta
-
ductus arteriosus
-
foramen ovale
-
foramen pulmonale
-
ductus venosus
-
portal sinus
Pregunta 2
Pregunta
Which of the following processes are involved in the early formation of the heart?
Respuesta
-
cranial-caudal folding
-
lateral body wall folding
-
ventral-dorsal folding
-
loop to the right
-
loop to the left
Pregunta 3
Pregunta
When does the partitioning of the atria and ventricles begin?
Respuesta
-
7 days
-
28 days
-
35 days
-
11 days
-
24 days
Pregunta 4
Pregunta
Which of the following are involved in the tetrology of Fallot?
Respuesta
-
pulmonary stenosis
-
left ventricular hypertropy
-
overriding aorta
-
total obstruction of aorta
-
right ventricular hypertropy
Pregunta 5
Pregunta
What is true about pericytes?
Respuesta
-
Found at fenestrated capillaries
-
Found at continuous capillaries
-
Serve as a stem or progenitor cell population
-
found in the basement membrane
-
sustain the blood brain barrier
Pregunta 6
Pregunta
What is true about Purkinje fibers?
Respuesta
-
They are found in the subendocardial layer of the heart
-
They are involved in slow conduction
-
They are associated with the contractile muscle cells
-
They have relative refractory
-
They are found in the myocardium
Pregunta 7
Pregunta
Where is the largest change in pressure?
Respuesta
-
arterioles
-
small arteries
-
capillaries
-
venules
-
aorta
Pregunta 8
Pregunta
Which of the following is/are true about lymphatic vessels?
Respuesta
-
Large lymphatic vessels have more smooth muscle than large veins
-
Medium lymphatic vessels have more smooth muscle than medium veins
-
Large lymphatic vessels have valves
-
Lymphatic capillaries have valves
-
Lymphatic capillaries have smaller lumen than blood capillaries
Pregunta 9
Pregunta
Which of the following is correct about blood volume?
Respuesta
-
Most of the blood is in venous return
-
The skeletal muscles is the tissue with the most blood
-
The smallest amount of blood will be in cardiac circulation
-
The brain has the greatest share of blood
-
Blood contains most of the water content of our bodies
Pregunta 10
Pregunta
Which of the following have the greatest resistance to blood flow?
Respuesta
-
arteries and arterioles
-
capillaries and venules
-
Aorta and large arterioles
-
Large arterioles and large veins
-
None of the above
Pregunta 11
Pregunta
Which of the following is true?
Respuesta
-
Pulsatile flow can be found at the capillaries
-
Patent ductus occurs more often in males
-
Diastolic murmurs come from stenoses of any of the valves
-
Systole of ventricles and atria can overlap
-
Cardiac output is determined by heart rate x (EDV-ESV)
Pregunta 12
Pregunta
Which of the following things is/are true?
Respuesta
-
Frank Starling's thing is that ventricular force is proportional to volume of blood received
-
QRS is diastole
-
low T indicates hypokalemia, long QT is hypocalcemia
-
Contraction of the heart starts at the apex
-
Fast response of the heart has a relative refraction period
Pregunta 13
Pregunta
Which of the following is true
Respuesta
-
Veins have thicker tunica media
-
The tunica intima is thin in both veins and arteries, is elastic
-
The tunica externa is fibrous and loose
-
The tunica adventitia is thicker in veins than arteries
-
The tunica media has smooth muscle cells
Pregunta 14
Pregunta
Which of the following is true
Respuesta
-
Turbulence is typically associated with narrowing from blockage
-
Laminar flow is fastest at the periphery
-
Vessels in parallel have faster flow than vessels in series
-
Small changes in radius result in large changes in resistance and flow
-
Resistance and flow have an inverse relationship
Pregunta 15
Pregunta
What are some expected effects of exercise on the heart?
Respuesta
-
Increased venous return
-
Increased cardiac output
-
Reduced blood flow to other areas, skeletal muscle prioritized
-
Increased parasympathetic vasoconstriction
-
Localized vasodilation to selectively decrease peripheral resistance to increase flow
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.