Dissectible Me 5 minute anatomy

The Cardiac veins

When it comes to the heart and its blood supply the coronary arteries take most of the limelight. But where does the deoxygenated blood go after supplying the muscle of the heart? How does it return to the circulatory system? In short, it travels through the cardiac veins our focus for this week's podcast. Names, locations and their anatomy. 
Terms covered this week; The great, the middle and the small cardiac veins. The coronary sinus.

The Brainstem (An Introduction)

This week let's take a first pass at covering some brainstem anatomy. Let's discuss the three subsections, the broad functions these have, and point out some of the fascinating features this vital area of the brain houses.
Terms covered this week, The midbrain, the pons and the medulla oblongata. The cerebral and cerebellar peduncles. The corpora quadragemina, which itself is made up of the superior and inferior colliculi. The red nucleus, the substantia nigra and the reticular formation. The medullary pyramids and lots of cranial nerve nuclei. 

The Pericardium

Today let’s discuss the membranous layers of tissue that house and protect the heart. What they are, where they are, function, innervation, importance, and a smidge of clinical relevance to finish.  
Terms covered this week. Layers of the heart; endocardium, myocardium & epicardium. The two layers of the pericardium; the serous pericardium (itself divided into visceral & parietal) & the fibrous pericardium. The pericardial cavity. Phrenic nerves & cardiac tamponade.

Teeth (The basics)

In this episode let’s take a bite out of some dental anatomy, by covering the basics of the tooth. Let’s uncover some details of the organic living rocks that inhabit our jaws, made up of four tissue types with a rich neurovascular supply.
Terms discussed in today’s episode are gingiva, the crown & the root of a tooth. The four tissues are enamel, cementum, dentin & pulp. The gomphosis joint is formed by the periodontal ligaments & finishing off we discuss the neurovascular supply of the superior & inferior alveolar nerves, arteries & veins.

The Coronary arteries

The tissue and muscle of the heart need a good blood supply. Enter the coronary arteries. A left and a right but also some other major branches to know about.
Terms, or arteries covered this week; The aorta. The right coronary artery & the posterior descending artery (PDA). The left coronary artery, circumflex artery & anterior interventricular artery aka left anterior descending artery (LAD).

The Shoulder

In this episode, we explore the osteology of the shoulder. The bones, joints & mobility vs stability.
Terms covered in this episode; The bones of the humerus, clavicle and scapular. The articulations of the glenohumeral joint, the acromioclavicular joint and the sternoclavicular joint. Finally the bony projections of the coracoid process, the acromion and the spine of the scapular. 

The Thalamus

A neuroanatomical review of the thalamus. What is it, where is it, what does it do, what happens when it gets damaged, that sort of thing.
 
 

The Perineum

Definitions, locations, anatomical associations, innervations and in fact most of the 'ations' involving the perineum. NB This is NOT to be confused with the term peroneal which is all things related to the fibula and calf of the leg. 
Terms covered this week; Perineum, pelvic floor & pelvic diaphragm. Perineal membrane, perineal body & urogenital triangle. Superficial & deep perineal pouches. Pudendal nerves, arteries & veins.  

The Muscles of Mastication

Building on a previous episode that discussed the mandible, in this soundbite we cover the muscles that act upon the lower jaw to chew, the muscles of mastication.
Terms covered this week are four muscles: the temporalis, the masseter and the medial & lateral pterygoids. Some bony anatomy in the sphenoid bone, the pterygoid plates, the zygomatic arch and the coronoid process of the mandible. Finally, the nerve that controls them all. The mandibular branch of the trigeminal nerve (CNV3).

The Thoracic apertures

In this episode, we review the anatomy of the thoracic apertures. What are they, where are they and what are the main structures that pass through their openings?
Terms covered this week; Superior and inferior thoracic apertures. The thoracic inlet and outlet (confusingly the same thing). Finally the well-documented clinical condition of thoracic outlet syndrome.