Online medical resources such as UpToDate and Medscape are being used more and more by physicians, residents, and med students. These databases allow clinical information to be looked up at a glance and are very convenient to use. However, in-print resources are still a very important part of medical training and will never be obsolete. …
Category Archive: Anatomy
Feb 16 2014
Sep 16 2012
Heberden’s and Bouchard’s nodes both refer to bony prominences located in the finger joints. However, they are both in different locations and are both tested differently on the boards.
Heberden’s nodes are present in the distal interphalangeal (DIP) joints, while Bouchard’s nodes are present in the proximal interphalangeal (PIP) joints.
Both Heberden’s and Bouchard’s nodes …
Feb 04 2012
The flow of CSF through the Central Nervous System is important to understand for the many conditions that can affect it including hydrocephalus, infections, masses, or bleeds.
I have created a flow chart to show the anatomy of the circulation of CSF. It is important to remember that the lateral structures are arranged in pairs, …
Jan 29 2012
Grey-Turner’s sign and Cullen’s sign can be easily confused with one another, because they are both characterized by the same physical findings in different locations.
Grey-Turner’s sign is located on the flanks, whereas Cullen’s sign is located around the umbilicus (periumbilical).
These signs can be seen when bleeding occurs inside the abdomen or in the …
Dec 07 2011
The buzzword Thumb sign can refer to two very different clinical scenarios.
The first and most common use of the thumb sign refers to a radiographic finding seen in epiglottitis. It is seen on a lateral x-ray and refers to the shape the epiglottis takes when it becomes immense and swollen, because it looks like …
Nov 30 2011
The innervation of the tongue is basic anatomy, but can be easily confused due to its complexity. The three basic components of the innervation are motor, sensory, and taste.
The motor component to the entire tongue is supplied by the Hypoglossal nerve (CN XII), except the palatoglossus muscle, which is supplied by the pharyngeal branch …