High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...

Aw, don't be embarrassed everyone does it! Quick Questions explains what causes blushing, which Darwin called "the most peculiar and most human of all expressions."

High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...

Nitric Oxide Synthase: Physiology, Biochemistry, and Mechanism

This video explains the concept of thermoregulation and how the body maintains its core temperature. It discusses the role of the hypothalamus in monitoring and controlling body temperature and how it responds to changes in temperature...

Human Sulfur Metabolism (Part 1): Hydrogen Sulfide and Atomic Sulfur!

In this video, we discuss another type of pressure-volume loop in detail that you may encounter in your anatomy and physiology class.

Thiamine (Vit B1) Deficiency Signs & Symptoms (& Why They Occur)



Thiamine (vitamin B1) is a vitamin required for energy metabolism, including the metabolism of glucose. Thiamine deficiency can caused by a decreased dietary...

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). -...

Biosignaling | Viagra (Sildenafil) Mechanism of Action

We touched upon the inflammatory response in the Anatomy & Physiology series, but now it's time to go much deeper. What is inflammation on the cellular level? Which cell types are involved with the response, and what are the mechanisms...

In this video, the teacher dissects a kidney and explains how it produces urine, then delves into why pregnant women have to pee more frequently. He discusses the changes in the cardiovascular system and kidneys during pregnancy, and how...

Amlodipine Side Effects (Why They Occur & How To Reduce Risk)



Amlodipine (also known as Norvasc) is a calcium channel blocker used to lower blood pressure and treat chest pain. In this lesson, we discuss the side effects of...

In this full-lecture video, we discuss the theory, contraindications/precautions, specific uses, and techniques by which we can apply heat as a therapeutic modality along with any relevant associated parameters.

Complex Regional Pain Syndrome (CPRS) | Causes, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Complex Regional Pain Syndrome is a neuropathic pain condition involving long-lasting pain that is out-of-proportion to...

In this video, we will discuss the stimulus for Atrial Natriuretic Peptide [ANP] release and how it reduces blood volume and blood pressure.