HPHY 322 Final (A+ GUARANTEED)

Which of the following are involved in normal transmission of a neuronal signal from the brain to the skeletal muscles? a. Voltage-gated sodium ion channels. b. Ligand-gated ion channels. c. Nicotinic cholinergic channels. d. All of the above. e. Only A and C. correct answers d. All of the abo...

Cell membrane correct answers Lipid bilayer that is selectively permeable to small lipid soluble molecules, creates barrier between intracellular and extracellular spaces Ion channel proteins correct answers proteins in the cell membrane that allow water and ions to pass through diffusion corr...

Explain the importance of the cell membrane correct answers selective permeability -conducts ions and nutrients -hydrophilic and hydrophobic parts' -transmembrane proteins allow for molecules to be carried across fine vs. crude touch correct answers fineable to localize and feel where you are...

What is simple diffusion? correct answers Ion movement across the membrane (lipid soluble or a protein channel with varying levels of specificity) What is facilitated diffusion? correct answers Ion movement that requires interaction with protein to move across membrane What is active transport...

oppose, concentration correct answers the Nernst equation calculates the electrical membrane potential required to ____ a single ion's ____ gradient relative refractory period correct answers the period shortly after the firing of a nerve fiber when partial repolarization has occurred and a stim...