Major Systemic Artery

Major Systemic Artery

Major systemic arteries begin with ascending aorta giving coronaries, arch branching brachiocephalic, left common carotid, left subclavian, then descending thoracic supplying intercostals, abdominal continuing as celiac, mesenteric, renal, gonadal, iliacs,…
Lower Limb Arteries Chart

Lower Limb Arteries Chart

The arterial supply to lower limbs forms a continuous chain with branches providing redundancy, starting with common femoral dividing into superficial femoral through adductor canal and profunda femoris laterally, then…
Comparison of Artery and Vein

Comparison of Artery and Vein

A side-by-side vascular comparison highlights the structural differences between arteries and veins. Thick muscular walls, narrow lumens, and elastic layers are shown in arteries, while veins appear thinner with wider…
Stethoscope Placement

Stethoscope Placement

Stethoscope placement for heart sounds uses four standard sites: aortic second right intercostal sternal border high-pitched semilunar closures, pulmonic second left for same, tricuspid lower left sternal for right AV,…
Cooperation Between Innate and Immune Responses

Cooperation Between Innate and Immune Responses

An immune system interaction diagram illustrates how innate and adaptive responses work together. Early defenses such as macrophages and inflammation are shown activating and guiding lymphocytes. This cooperation explains faster…
Embroyonic Disc Amniotic Cavity Yolk Sac

Embroyonic Disc Amniotic Cavity Yolk Sac

The embryonic disc with amniotic cavity and yolk sac represents the early post-implantation stage, where the bilaminar disc of epiblast and hypoblast forms, then gastrulation creates a trilaminar disc with…
Cardiac Cycle vs Heart Sounds

Cardiac Cycle vs Heart Sounds

A comparison of the cardiac cycle and heart sounds visually links mechanical events in the heart to what is heard through a stethoscope. The diagram aligns phases such as atrial…