Simini Boards Cast
The Simini Boards-Cast is the go-to audio study tool for small animal surgery residents prepping for board exams.
Each episode simplifies high-yield surgical content from trusted sources — built to help you pass faster and with less stress.
🎧 Audio-based learning for passive study
✂️ Practical relevance for surgical application
🧠 Flashcard-style recaps + board-style questions
📈 Designed with resident + program director input
Whether you're commuting, walking the dog, or post-op, turn that time into surgical mastery.
Subscribe now and get board-ready — fast.
Simini Boards Cast
Chapter 121 - Part B: Thyroid Hormones: The Body's Master Speed Dial
Use Left/Right to seek, Home/End to jump to start or end. Hold shift to jump forward or backward.
In this BoardsCast episode, we continue Tobias Chapter 121 — Thyroid and Parathyroid Glands (thyroid focus) with one unifying mental model:
You don’t feel thyroid hormone in one organ. You feel it everywhere — because thyroid hormone is the body’s master speed dial.
Instead of memorizing symptom lists, we break thyroid physiology into a simple system: too much signal and everything speeds up; too little and everything slows down.
You’ll learn:
- Why the thyroid is a warehouse, not a fire hose: follicles store thyroglobulin and need iodine to build hormone
- Why T4 is the main product but T3 is the active weapon — and how tissues convert T4 → T3 locally (peripheral deiodination)
- Why protein binding stabilizes the system: <1% is free hormone (active “cash”), the rest is a reservoir (“bank”)
- The brain control loop: TRH → TSH → thyroid, and why the pituitary only “reads” free hormone, not total
- Hyperthyroid mechanics: weight loss despite appetite, GI hypermotility, tachycardia, restlessness — all explained by a dial stuck high
- Hypothyroid mechanics: low-power mode — lethargy, weight gain tendency, sluggish cardiovascular output, skin/coat changes
- Surgical/anesthesia reality: you don’t operate on a thyroid gland — you operate on a whole-body metabolic state
Key takeaway: Master the dial, and the “random” symptoms become predictable.
🎁 Simini Bonus
Claim your free sample of Simini Protect Lavage (just cover shipping):
https://www.simini.com/evaluation-kit
Listen On: Spotify | Apple Podcasts | Amazon Music