Vanderbilt University researchers say they're working to unleash an insect repellent on mosquitoes that's more powerful than DEET. The discovery could one day be effective in reducing the spread of mosquito-borne diseases, such as...

Now that we know a bit about viruses, we understand that they require a host cell. So let's get some more details about how viruses interact with cells. There are a few different ways this can play out, so let's start by looking at...

This video tutorial briefly covers the sympathetic and parasympathetic role on vessel innervation. It focuses on the following: - Sympathetic neurotransmitters (epinephrine and nor-epinephrine) and receptors (adrenergic). -...

This video tutorial discusses the Nicotinic cholinergic receptors: 0:00. Intro 0:17. What are cholinergic receptors? 0:31. What are nicotinic receptors? 1:47. What are the 2 types of nicotinic receptors? 2:07. Nm. Nicotinic muscle...

Bronchodilators are drugs used to expand a constricted airway in instances of asthma, bronchitis, and emphysema. Poiseuille's law, an equation often used to study fluid dynamics plays and important role in calculating the effectiveness...

In this video, we explore the purpose and biochemical mechanism of long-term potentiation in neurons in relevant neural circuits.

In this video, we explore the mechanism of LDL-mediated cholesterol delivery to peripheral cells.

In this video, explore the biochemical mechanisms that promote bronchoconstriction and bronchodilation.

Researchers from China have used cryo-electron microscopy to show how the virus responsible for COVID-19 attacks humans. <br/>

Researchers from China have used cryo-electron microscopy to show how SARS-CoV-2 infects humans.

Coughing is a complex process that involves an initial response to an irritant, moves up to the medulla, and triggers the abdomen to constrict. Antitussives are a wide range of drugs that attempt to supress the cough response. How do...

In this video, we explore the two major pain modulation mechanisms in TENS and IFC: gate control and endogenous opioid theories.

The video discusses the effects of cannabis on the developing brain of teenagers, highlighting the potential long-term consequences on intelligence, learning, and judgment. It emphasizes the importance of waiting until the brain is fully...

The COVID-19 outbreak as of Feb. 25 has infected 80,000 people and resulted in about 2,700 deaths, mostly in China’s Hubei. <br/>

In this video, we explore the following:<br/>
[1] Anatomy, location, and organization of olfactory<br/> epithelium
[2] Biosign<br/>aling events f<br/>or smell
[3] Olfactory coding
[4] Olfactory pathway to the brain

Now that we know some things about immune cell structure and function, we need to start understanding how these cells interact on the molecular level, and how signals are translated into cellular response. This means looking at...

This video provides an overview of the endocannabinoid system, including the different types of receptors and cannabinoids involved. It explains how cannabinoids like THC and CBD can affect various parts of the body, and highlights the...

This video provides an overview of the body's thermoregulation process, which is responsible for maintaining optimal body temperature for enzyme function. The video explains how the brain's thermoregulatory sensor and temperature...

Staring at an image or screen for a long time tires our eyes out and can result in some strange visual affects. Explore the science behind this phenomenon and test your eyes on a few examples.

What Caffeine Does to the Body In this video, Jonathan from the Institute of Human Anatomy discusses how caffeine interacts with the various tissues throughout the human body and produces it's various effects, including potential side...

The novel coronavirus did not originate from a research laboratory, according to a study published in Nature Medicine. <br/>

This video tutorial discusses Adrenergic receptors: 0:00. Intro 0:16. What are adrenergic receptors? 0:26. There are 2 types of adrenergic receptors 0:42. G-Protein coupled receptors that act through 2nd messengers 2:01. Alpha adrenergic...

In this episode, I talk about the visual processing that happens in the retina, starting with the rods and cones, going to the bipolar cells and then the ganglion cells. Watch to learn how this process works.

The COVID-19 coronavirus, or SARS-CoV-2, targets human cells with ACE2 receptors, which are found in the respiratory system. The immune response can trigger potentially deadly inflammations and the virus can spread from the lungs to...