Across
- 4. the electrical event seen when the ventricle repolarizes
- 7. the pupil does this when stimulated by norepinephrine
- 9. the blood vessels with the greatest change in resistance
- 10. forms when myosin binds actin
- 11. master controller of the ANS
- 15. a sustained muscle contraction
- 18. a gas exchanged at the capillaries
- 19. required to pump calcium back into the SR
- 20. is released from the zona fasciculata
Down
- 1. is responsible for setting the pace of the heart
- 2. where a presynaptic ANS neuron synapses
- 3. the pressure that proteins exert in a fluid
- 5. the area that the motor neuron synapses with a muscle cell
- 6. a vessel with one way valves
- 8. equals heart rate times stroke volume
- 12. where calcium binds for a muscle contraction
- 13. this neurotransmitter is responsible for skeletal muscle contraction
- 14. this branch of the ANS causes vasoconstriction
- 16. the term used to describe the contraction of the heart
- 17. blood leaves this side of the heart before entering the lungs