Physiology | Senioritis

Mohamed Abbas
August 17, 2023
Physiology

How the Sympathetic Nervous System Affects Urination during Stress or Threat

Does The Sympathetic Nervous System Increase or Decrease Urination? The sympathetic nervous system plays a role in regulating many bodily functions, including urination. Under normal conditions, the...

Mohamed Abbas
August 17, 2023
Physiology

Water movement in cells

Is water movement across cell membrane purely diffusive or it always requires channels? Water movement across the cell membrane can occur through two main mechanisms: diffusion and...

Mohamed Abbas
August 17, 2023
Physiology

The Mechanism of Muscle Relaxation

What stops myosin during muscle relaxation? During muscle relaxation, one of the key factors that stops myosin, a protein involved in muscle contraction, is the absence of...

Mohamed Abbas
August 17, 2023
Physiology

Estimating Oxygen Consumption

How to estimate oxygen consumption of an average human during different activities? Estimating the oxygen consumption of an average human during different activities can be done using...

Mohamed Abbas
August 17, 2023
Physiology

The Science of Muscle Contraction and Relaxation

Why Can’t Muscles Push When They Return To Their Original Length? Muscles are specialized tissues in our bodies that enable movement by contracting and relaxing. When a...

Mohamed Abbas
August 17, 2023
Physiology

Explaining the Convention of Current Direction in Electrical Circuits

Why is the current flow shown to be flowing from the negative area towards the positive area? The flow of current is actually from the positive terminal...

Mohamed Abbas
August 17, 2023
Physiology

Factors Influencing Gas Equilibration in Alveoli

How does gas equilibration occur in the alveolus, numerically? Gas equilibration in the alveolus occurs through the process of diffusion. Diffusion is the movement of gas particles...

Mohamed Abbas
August 17, 2023
Physiology

The Importance of Urobilinogen Reabsorption and Kidney Excretion

Why is urobilinogen reabsorbed from the gut just to be excreted via the kidneys? Urobilinogen is a yellow-colored chemical compound that is formed as a byproduct of...