During early embryonic development, the blastula reorganizes into three primary germ layers that give rise to all tissues and organs. The outer ectoderm forms skin, hair, nails, and the nervous…
An illustration of blood volume loss and homeostasis explains how the body responds to bleeding or dehydration. It shows sensors detecting reduced volume or pressure, triggering responses such as increased…
Lower limb arteries arise from the femoral artery continuing the external iliac, viewed anteriorly showing profunda femoris branching deep into thigh muscles, then popliteal behind the knee giving genicular branches,…
A metabolic pathway diagram comparing catabolic and anabolic processes shows how the body balances breakdown and building. Catabolic pathways are illustrated breaking large molecules into smaller units while releasing energy,…
Defibrillators are lifesaving devices designed to deliver an electric shock to the heart when it's in a chaotic, ineffective rhythm like ventricular fibrillation or pulseless ventricular tachycardia during cardiac arrest,…
A genetic inheritance chart for autosomal dominant traits uses family trees to show transmission across generations. Affected individuals appear in each generation, reinforcing how a single gene copy can express…