muscular system

Question 1

Functions of muscular system

Answer 1

-Contractility
-Excitability
-Extensibility
-Elasticity

Question 2

long-cylindrical structures found in muscle fibers

Answer 2

Myofibrils

Question 3

the uneven distribution of charges reffered

Answer 3

Resting Membrane

Question 4

3 main factors of resting membrane

Answer 4

-higher conc. of K ion inside the cell
-higher conc. of Na ion outside the cell
-the greater permeability of the all membrane to K than to Na

Question 5

movement of 3 Na ions outside the cell and 2 K ions inside the cell

Answer 5

Sodium Potassium Pump

Question 6

stimulation for muscle contraction

Answer 6

Active Membrane Potential

Question 7

integral membrane proteins that contain a pore which allows the regulated flow of selected ions across the plasma membrane

Answer 7

Gated-Ion Channels

Question 8

the value of the membrane potential which, if reached, leads to the all-or-nothing initiation of an action potential

Answer 8

Threshold