PATHO QUESTIONS AND ANSWERS A+ GRADED
Action potential
The process of transmitting information between excitable cells through a rapid change
in the electrical potential across the cell membrane.
Neurologic disease
A disease that affects the nervous system, resulting in abnormalities in the structure or
function of the brain, spinal cord, or peripheral nerves.
Muscle disease
A disease that affects muscle tissue, leading to weakness, stiffness, or muscle
dysfunction.
Electrolyte imbalances
Disruptions in the levels of ions (charged particles) in the body, which can affect various
physiological processes, including action potentials.
Cell membrane
A structure that surrounds and protects the cell, regulating the movement of substances
in and out of the cell.
Phospholipids
Lipids that make up the cell membrane and play a crucial role in maintaining its integrity
and fluidity.
Cholesterol
A lipid component of the cell membrane that helps maintain its stability and flexibility.
Glycolipids
Lipids involved in the composition of the cell membrane, contributing to cell recognition
and signaling.
Lipid soluble substances
Substances that can easily pass through the cell membrane due to their ability to
dissolve in lipids.
Water soluble substances
Substances that have difficulty passing through the cell membrane due to their inability
to dissolve in lipids.
Transmembrane proteins
Proteins that span the entire width of the cell membrane, playing a role in various
cellular processes, including transport and signaling.
Ligand-binding receptors
Proteins that bind with hormones or neurotransmitters, initiating specific cellular
responses.
Transport proteins
Proteins involved in the movement of substances across the cell membrane, facilitating
their entry or exit.
Na+-K+ ATPase
A protein responsible for maintaining the ionic balance within the cell by actively
pumping sodium ions out of the cell and potassium ions into the cell.