BIOS 252 Midterm Exam
1. CN III innervates with of of the following muscle?
a. Medial Rectus
2. The brain and spinal chord are part of the ______ nervous system?
a. Central
3. T Tubules are extensions of the _____ in skeletal muscle?
a. Sarcolemma
4. A wheelbarrow is an example of a _______ class lever?
a. Second
5. The muscle contraction pulling on its insertion point, corresponds to what
part of the lever system?
a. Effort
6. A synovial joint corresponds to what part of the lever stem?
a. Fulcrum
7. When would voltage-gated Sodium channels open rapidly?
a. When a depolarizing graded potential makes the axon membrane
depolarize to threshold
8. Which of the following muscle closes the lips?
a. Orbicularis Oris
9. Synergists prevent unwanted movements during an action, or aid the agonist
during the movement.
a. True
10. EPSP stands for _________
a. Excitatory postsynaptic potential
1. CN III innervates with of of the following muscle?
a. Medial Rectus
2. The brain and spinal chord are part of the ______ nervous system?
a. Central
3. T Tubules are extensions of the _____ in skeletal muscle?
a. Sarcolemma
4. A wheelbarrow is an example of a _______ class lever?
a. Second
5. The muscle contraction pulling on its insertion point, corresponds to what
part of the lever system?
a. Effort
6. A synovial joint corresponds to what part of the lever stem?
a. Fulcrum
7. When would voltage-gated Sodium channels open rapidly?
a. When a depolarizing graded potential makes the axon membrane
depolarize to threshold
8. Which of the following muscle closes the lips?
a. Orbicularis Oris
9. Synergists prevent unwanted movements during an action, or aid the agonist
during the movement.
a. True
10. EPSP stands for _________
a. Excitatory postsynaptic potential
