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Anatomy & Physiology

Learn Muscle Anatomy: Lateral Rotators

It's kind of serendipitous that I start writing a thing about the lateral rotator muscles when a Lewis Black schtick comes on my iTunes about mixing up FEMA and femur. The lateral rotators are muscles in the hip/gluteal region of the body and their ...
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Anatomy & Physiology

Anatomy and Physiology: The 3D Human Brain

I've been told I have a weird way of looking at the body. I've likened the digestive system to a train route, the heart to a machine, and now I'm ...
Anatomy & Physiology

Anatomy and Physiology: Six Facts about the Salivary Glands and Saliva

Ever been so angry you could spit? If you're angry right now, please don't spit—it was just an expression. As gross as spit is, it's also incredibly ...
Anatomy & Physiology

Learn Muscle Anatomy: Trapezius

I love the trapezius muscle. I know, I know, I say that about every muscle I write about, but it's true! The trapezius is so cool. It's like wearing ...
Anatomy & Physiology

Learn Heart Anatomy: Vessels, Valves, and Chambers (oh my!)

Your heart is an extraordinary machine. Have you ever seen the PIXAR movie Wall-E? In the movie, every robot has a directive, or purpose, that it ...
Anatomy & Physiology

3D Skeletal System: Atlas, Axis, and the Atlanto-Axial Relationship

There are 33 vertebrae in your vertebral column. Or is it 24? Doesn't matter—both numbers are correct. You're born with 33, but the sacrum and coccyx ...
Anatomy & Physiology

3D Muscular System: Five Common Muscle Actions

You are always moving. No matter how still you think you are, there are muscles contracting—you're never truly still. The muscles in your digestive ...
Anatomy & Physiology

Learn Muscle Anatomy: Sternocleidomastoid

I can't tell you how many times a day I drop the side of my face into my hand—it's becoming a problem. Mostly because after a while it gives me a ...
Anatomy & Physiology

Anatomy and Physiology: The Relationships of the Respiratory System

The Visible Body Blog · Anatomy and Physiology: The Relationships of the Respiratory System Click the play button to listen to an audio version of ...
Anatomy & Physiology

Learn Muscle Anatomy: Popliteus

I have a real fascination with underdogs: the little guys who manage to pull off the incredible when the bigger guys usually get all the glory. The ...