Fibularis tertius
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Fibularis tertius muscle Anatomy, Origin, Insertion, Function, Exercise

Introduction The Fibularis tertius muscle, also known as peroneus tertius, is situated on the lower lateral aspect of the leg. It is a portion of the leg’s anterior, or extensor, compartment, together with 3 additional muscles; extensor digitorum longus, extensor hallucis longus & tibialis anterior. They are responsible for ankle dorsiflexion. Fibularis tertius extends from…

abdominal regions

Abdominal regions

In anatomy and physiology, you will learn how to divide the abdomen into nine different regions & four different quadrants. If you plan to enter a healthcare profession like nursing, this is something you will use on the job when performing abdominal assessments (and while documenting). The abdomen refers to the region between the pelvis…

lumbar plexus
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The Lumbar Plexus

What is lumbar plexus? The lumbar plexus is a vital collection of nerves that arise from mostly the lumbar medulla spinalis. The term plexus refers to a “web” of nerves that’s created just lateral to where T12-L5 exit the neural structure via intervertebral foramina. The plexus exists bilaterally and allows nerves to mix with different…