Welcome to Dissectible Me. Human anatomy in 5-minute chunks.
In this series, we will cover everything from introductions to bodily systems, to some very focused but fascinating nuggets of anatomy knowledge. One rule, it must be covered in 5 minutes only! So join us as we set the timer and rattle through some human anatomy.
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.
Let's take another look at the pleura in this episode. This time let's focus on the pleural recesses, innervation of the pleura and some clinical relevance.
Terms covered this week; Costal pleura, diaphragmatic pleura & mediastinal pleura. The pleural recess (aka the costophrenic recess) & the costomediastinal recess. The clinically relevant pleural effusion & pleuritic chest pain.
The Vestibular system & Balance
This episode tackles the beautifully complex area of the inner ear whose function it is to detect motion and facilitate, in part, balance.
Terms covered this week; The bony & membranous labyrinth of the inner ear. The fluids perilymph & endolymph that flood these cavities. The stereocilia, macula, crista, cupula and otoconia that comprise the delicate inner organs of balance. Finally the clinical relevance of the vestibulo-ocular reflex (VOR), the symptom of vertigo, the sign nystagmus and the condition (BPPV) Benign Paroxysmal Positional Vertigo.
In this episode, we discuss the very thin serous membrane that surrounds the lung and thorax which is absolutely crucial for life.
The terms covered in this episode are visceral and parietal pleura. Pleural space, pneumothorax and haemothorax.
The Major Nerves of the Upper Limb
Today's episode is a follow on from last week in which we explore the compartments and 5 major nerves of the upper limb
Terms covered in this episode; Axillary nerve, Radial nerve, Median nerve, Ulnar nerve & Musculocutaneous nerve.
Helping me with my Sport & Exercise Therapy Degree
Thank you Sam and Chris for these brilliantly bite sized podcasts. Clear, concise and great for helping me learn all my A&P for my degree.