Dissectible Me 5 minute anatomy

Did you know that alongside the pulmonary arteries taking poorly oxygenated blood to the lungs run bronchial arteries carrying well oxygenated blood? Where do they come from, and where does this blood go to?

The ureters carry urine from the kidneys to the bladder, and are muscular tubes lined by a urothelium. They use peristaltic contractions to send the urine in the right direction so do not rely on gravity, and because they run from the mid-abdomen down to the true pelvis they receive a number of arterial branches as they travel and likewise use nerves from a number of spinal levels to send the pain of a kidney stone obstruction back to the brain.

The kidneys manage the amount of water and salts in the body, regulate blood pressure, stimulate red blood cell synthesis, and remove toxins among other jobs. Let's talk about the key points of their anatomy for 5 minutes.

This episode explores the anatomy of the clavicle or collarbone, the smallest long bone in the human body. We’ll dive into its shape, size, joints, etymology, & muscular attachments. Ever wondered about the clavicles of a T. rex? By the end of this episode, you wonder no more!

The anatomy of breathing uses a number of muscles to change pressures inside the thorax and adds more muscles and more movements when we need more air. At rest you're just using your diaphragm and the elastic recoil of the lungs themselves, when you're a little more active and running around the intercostal muscles start to move the ribs, and when you really need to pull air in and push it out you can take advantage of accessory muscles of respiration that might not normally move the ribs.

In this episode, we unravel the anatomy of the cochlea, the intricate organ that makes hearing possible. Discover how this tiny structure converts sound waves into electrical impulses, bridging the gap between the ear and the brain.

Three layers of intercostal muscles run between the ribs to form the thoracic wall, resist the pressure changes of respiration and move the ribs. What would happen if these muscles were not there?

Lymph nodes are little bean shaped structures filled with the cells of the immune system and dotted around the body. Pathogens from skin injuries or that enter the body in other ways are passed to a lymph node and the cells here can respond. They are major parts of the immune system but metastatic cancer cells may also pass here, get stuck and continue to proliferate. This is important anatomy then, so let's quickly talk about it in around 5 minutes of podcast world time.

Swallowing is a sequence of events that must occur in a well ordered manner to ensure food and drink goes to the oesophagus and not into the airway. What is this sequence and what cranial nerves do we need to worry about?

The popliteal fossa is posterior to the knee joint and in here we can find some major blood vessels and nerves. We will describe the boundaries of this fossa, the major structures that run through here, why this is useful clinical information and a couple of notes about remembering their names correctly.