Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and …

They help regulate blood flow in the brain, maintain the composition of the fluid that surrounds neurons, and regulate communication between neurons at the synapse.

Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and …

The kidney is key to blood pressure control. Angiotensin and aldosterone play major roles. To understand their action, you have to understand the structure and function of the kidney.

The innate immune system is essentially made up of barriers that aim to keep viruses, bacteria, parasites, and other foreign particles out of your body or limit their ability to spread and move …

Bugs have exoskeletons outside their bodies, while humans have endoskeletons inside. Our bones are in axial (skull, ribcage, spine) and appendicular (arms, legs) groups.

Here, we’ll take a closer look at the different components of the plasma membrane, examining their roles, their diversity, and how they work together to make a flexible, sensitive, and secure …

Understand the different types of tissues, their functions, and how they contribute to our sensory experiences. Learn about the role of connective tissue, the importance of blood vessels, and …

Spin down your blood and find out what it's made up of. This video provides a detailed look at the composition of blood, explaining the roles of plasma, white blood cells, and red blood cells.

The respiratory system gets oxygen to the circulatory system, (the blood) which then gets oxygenated blood to the brain.