BIO 226: Developmental Biology

Discover the intricacies of action potentials in the nervous system. Unpack five statements on why they move in one direction, spotlighting the role of the refractory period. Grasp the significance of voltage-gated channels and ion flow in neural communication.

Explore the integral role of white rami communicantes within the autonomic nervous system. This video clarifies their function, anatomical location, and the specific nerve fibers they contain, highlighting their importance in our body's fight-or-flight response.

Explore the captivating Oparin-Haldane hypothesis, detailing the three key steps in the journey from non-life to life. Witness the emergence of organic molecules through non-biological processes, the formation of complex molecules, and the ultimate leap to self-replicating DNA. Join us on this scientific exploration of life's origins.

Discover the critical role iodide ions play in regulating metabolism through their involvement in thyroid hormones. Learn how active transport enables the movement of these ions in the body, requiring ATP energy. Uncover common sources of iodide ions and their importance in medical applications.

Uncover the microscopic intricacies of compact and spongy bone structures. Learn about osteons, trabeculae, and the vital role of osteocytes. Dive into the balance of strength and functionality bones provide to our body.

Discover the role of Okazaki fragments in DNA replication and the importance of DNA Ligase in ensuring their correct joining. Learn how a malfunction in this enzyme might disrupt the formation of continuous DNA strands on the lagging strand.