CV Summa 1

In the primitive heart (around 18-19 days)  the primitive ventricle is on top of the primitive atrium

• True

• False

Which do all cardiac veins empty into the coronary sinus EXCEPT?

• great cardiac vein

• anterior cardiac vein

• posterior cardiac vein

• middle cardiac vein

If there is a fracture in the surgical neck of the humerus which artery is at risk for rupture?

• a. subscapularis

• a. circumflexa humeri posterior

• a. circumflexa humeri anterior

• a. profunda brachii

a. epigastrica superficialis is NOT derived from which artery ?

• a. femoralis

• a. poplitea

• abdominal aorta

• a. glutes superior

glutes inferior supplies superior gluteal muscles

• True

• False

Fenestrated capillaries appears on? EXCEPT

• Kidney

• small intestine

• endocrine gland

• bone marrow

Right lymphatic duct collect lymph from the upper right quadrant of the body?

• True

• False

The epicardium is composed of endothelium and subendocardium connective tissue

• True

• False

The degree of fiber stretch as a result of quantity of the blood in the ventricle prior to contraction

• Afterload

• Preload

• Resistance

• Contractility

Rising phase of action potential within the pacemaker is cells is caused by?

• Ca²⁺

• Na⁺