Physiology | Senioritis

Mohamed Abbas
August 17, 2023
Physiology

Understanding the Coronary Circulation

Coronary circulation Coronary circulation refers to the circulation of blood within the blood vessels of the heart. The heart, like any other organ in the body, requires...

Mohamed Abbas
August 17, 2023
Physiology

The Mechanisms of Increased Blood Flow in Muscles During Exercise

Why does muscle blood flow decrease during exercise? During exercise, muscle blood flow actually increases rather than decreases. This is because the working muscles require more oxygen...

Mohamed Abbas
August 17, 2023
Physiology

The Role of Histamine in Bronchoconstriction and Respiratory Conditions

Why does histamine cause bronchoconstriction? Histamine causes bronchoconstriction by binding to specific histamine receptors located in the smooth muscle cells of the bronchioles. When histamine molecules attach...

Mohamed Abbas
August 17, 2023
Physiology

Exploring ethical considerations and technical limitations in restoring electrical activity in animal brains

Why didn’t these scientists restore electrical activity in this pig’s brain? There could be several reasons why scientists did not restore electrical activity in the pig’s brain...

Mohamed Abbas
August 17, 2023
Physiology

Understanding Isometric Contraction

How does isometric contraction work? Isometric contraction is a type of muscle contraction where the muscle length remains the same while tension is developed. During an isometric...

Mohamed Abbas
August 17, 2023
Physiology

Hyperpolarization and Cell Communication

Why does K+ going out of the cell cause hyperpolarization? When a potassium ion (K+) moves out of the cell, it causes hyperpolarization. This is due to...

Mohamed Abbas
August 17, 2023
Physiology

Understanding the Effects of Oxygen Deprivation on Nerve Cells

How does a nerve cell adjust if O2 diffusion is interrupted? If the diffusion of oxygen (O2) to a nerve cell is interrupted, the cell will initiate...

Mohamed Abbas
August 17, 2023
Physiology

Understanding the Complex Relationship between Sound Pressure and Frequency Discrimination in the OHCs

Does the frequency discrimination of the outer hair cells of the ear increase with sound pressure? The external hair cells (OHCs) in the ear are responsible for...