Episodes
The basal ganglia should be called the basal nuclei, and are also referred to as the corpus striatum. This demonstrates one of the problems with studying neuroanatomy as terms seem to overlap. Let's talk about what the basal ganglia are, what they do, some of this terminology and what they have to do with Parkinson's disease.
Published 04/26/24
Published 04/26/24
The enteric nervous system describes the nerves of the gastrointestinal tract that autonomously regulate much of its function. Sometimes called the second brain it is a complex network of sensory inputs linked to motor outputs organised into two major plexuses running the entire length of the gut.
Published 04/19/24
The phrenic nerve is well known for its role in innervating the diaphragm and its roots in the C3, 4 and 5 spinal nerves. It also innervates the pericardium, is implicated in the runner's stitch pain and can be responsible for pain in the shoulder.
Published 04/12/24
The largest nerve in the body has many spinal nerve roots in the low back that are often the cause of pain in the lower limb. Let's quickly describe the anatomy of this huge nerve.
Published 04/05/24
One of the huge reasons that exercise and a good diet are so important is atherosclerosis. This pathology describes a change to the walls of arteries that can cause narrowing, rupture or blocking of an artery. If this occurs in an artery supplying blood to the heart or the brain this will probably cause death, and is a leading cause of death in western countries.
Published 03/22/24
It's the largest organ in the body (or on the body)? You can't live without it, it is an entire system of the body (the integumentary system), it is the major sensory organ, and it gets wrinkly as you get older. Skin!
Published 03/19/24
There are only four tissues that make up the body (epithelial, connective, muscle and nervous). We should talk about epithelia and carcinoma.
Published 03/08/24
Erb's palsy is an upper brachial plexus injury and is an example of why learning the anatomy of the brachial plexus is important. How does this palsy present and what has been injured?
Published 03/01/24
The aorta is the major artery that runs the length of the torso, has some cool curves, and supplies blood to everything.
Published 02/23/24
Gait is complicated, and Trendelenburg gait is an abnormal gait caused by a weakness or paralysis of the gluteus medius and minimus muscles. How does this work? (Or not work)?
Published 02/09/24
The adrenal glands are vital and the cortex and medulla of each have different functions. Let's talk about their anatomy and what they do.
Published 02/02/24
The sacroiliac joint is a very strong joint that takes the load of the torso from the vertebral column and sends it to the pelvis and lower limbs. It is a synovial joint that allows a little movement and is strongly supported by ligaments. Pain here is often caused by the joint being pulled too far by the large muscles that cross it or that move the pelvis.
Published 01/26/24
The ribs are a series of 12 curving bones on either side of the torso forming the walls of the thorax and upper abdomen. Let's talk about their parts and how they move.
Published 01/19/24
The pancreas is an organ that most people know about because of its job in producing insulin and managing blood sugar levels. When this doesn't work correctly diabetes develops. It has other endocrine roles and exocrine jobs too, in digestion. Let's talk about where it is in the body and some of the details of the anatomy of this vital organ in 5 minutesish.
Published 01/12/24
The pelvis has two halves (left and right) but each half is also made up of three bones. Let's look at the anatomy of the ilium, ischium and pubis bones and how they link to the back and lower limb.
Published 01/12/24
The nuchal ligament is in the back of your neck and you can feel it when you flex your neck forwards. What does it do and where does it come from?
Published 01/12/24
The pudendal nerve is responsible for sensation from the external genitalia and the perineum, and for motor innervation of the muscles here including the urethral and anal sphincters. It comes from the sacral plexus, so how does it get to the perineum?
Published 01/12/24
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...
Published 11/10/23
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)...
Published 10/27/23
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.
Published 10/16/23
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.
Published 09/22/23
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.
Published 08/06/23
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....
Published 07/28/23
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. 
Published 07/22/23