Dissectible Me 5 minute anatomy

Elbow Pain

In this episode, let’s use the common complaint of elbow pain as a vector to explore the anatomy around the elbow.
Terms covered this week: medial & lateral epicondyle. Pronation & supination. Medial epicondylitis aka golfer’s elbow.  Lateral epicondylitis aka tennis elbow. Flexor muscles, specifically flexor digitorum muscles (superficialis & profundus), flexor carpi ulnaris, flexor carpi radialis, palmaris longus & pronator teres. The extensor muscles, mainly the extensor carpi radialis longus & brevis, extensor carpi ulnaris, extensor digitorum and the supinator muscles.

The Cornea

Let’s discuss the clear transparent tissue that sits anterior to the pupil and iris of your eye. Today we will explore the 5 layers of this tissue and link back to their function. There may be more to this area of anatomy than initially meets the eye……😶
Terms covered this week: the cornea, sclera, and progenitor cells. The 5 layers of the cornea are; the epithelium, the Bowmen’s layer (aka the anterior limiting membrane), the stroma, Descemet’s membrane (aka the posterior limiting membrane) and the endothelium layer. The debated sixth layer is also mentioned which is called Dua’s layer.

The Azygos vein

The anatomy of venous drainage of the thoracic wall. What is the azygos venous system? Where is it found? Why is it important & interesting?
Terms covered this week, The azygos, hemiazygos & accessory hemiazygos veins.

Intervertebral disks

We are back! Pun intended. In this episode, Sam will discuss the very important structure that exists between the vertebrae of your spine. The fibrocartilaginous intervertebral disk. This mobile, compressible, and stabilising tissue is integral for a happy healthy spine.
Terms covered this week: The annulus fibrosus & the nucleus pulposus. Type I & type II collagen. Vertebral endplate & disk herniation.

The Optic nerve (CNII)

An anatomist’s ramblings on the optic nerve, colour vision & visual decussation.
Terms covered this week: The retina & its rod and cone cells. The optic nerve, optic chiasm & optic tract. Trichromats, dichromats, tetrachromats & achromatopsia.

The Peritoneum

Let’s discuss the sheets of connective tissue in the abdominal cavity, aka the peritoneum. Let’s explore how the folds of this membrane are called different things depending on how many folds there are, & how these folds form spaces……that us anatomists also name. In addition to the terminology, let's discuss the functions & clinical relevance of all these membranes, to justify knowing them.
Terms covered this week: The peritoneum & the parietal & visceral iterations of this. Peritoneal fluid. The mesentery. The greater & lesser omentum. The greater & lesser sacs. Finally, what on earth is meant by retroperitoneal?

The Eye (Basics)

In this episode lend me your ears, to understand your eyes. Let’s cover some basic ophthalmic anatomy in a whistle-stop tour of the anatomy of the eye.
Terms covered this week include the cornea, conjunctiva & sclera.  The iris, pupil, ciliary muscles, suspensory ligaments & the lens. The retina including its rod and cone cells. Finally, the aqueous and vitreous humours fill in the gaps. 

Bleeds Inside the Skull

Following the Meninges podcast, this soundbite is dedicated to the anatomy of bleeds inside the skull. 
Terms covered this week include the cerebral arteries & subarachnoid haemorrhages. Cerebral bridging veins & subdural haemorrhages. Meningeal arteries & extra/epidural haemorrhages. 
 

The Meninges

In this episode, we discuss the three connective tissue layers that surround the brain & spinal cord. 
Terms covered this week are the dura mater, the arachnoid mater & pia mater. The leptomeninges & subarachnoid space. We also discuss meningitis.

Hip movements & muscles

Muscles & movements of the hip joint in 5 minutes or less! This is a challenge, but here we aim to provide a broad overview of the hip muscles, the movements of these muscles & their innervation.
Terms covered this week: The movements of the hip, flexion, extension, adduction, abduction, and internal & external rotation. The muscles of the hip: iliacus, psoas major & rectus femoris. Sartorius & pectineus. Gluteus maximus & the hamstrings. Gluteus medius & gluteus minimus. Gracilis & the adductor muscles (longus, brevis & magnus). The six lateral rotators of the hip: obturator internus & externus. Pyriformis, quadratus femoris & gemellus superior & inferior. The superior & inferior gluteal nerves, the sciatic nerve, & the obturator nerve.