Across
- 1. neurone (transmits impulses from CNS to effectors)
- 5. (short for acetylcholine, a very common neurotransmitter)
- 6. (part transmitting impulse towards the cell body)
- 9. (type of hormone that cannot pass through cell surface membrane)
- 11. (a neurone whose cell body lies part way along the axon — sometimes “unipolar” is used in simpler sheets; if the crossword expects a shorter word, unipolar or bipolar might appear depending on the grid)
- 12. potential (electrical signal transferred along neurones)
- 13. (point where two neurones meet but do not touch)
- 15. (protein calcium ions bind to during muscle contraction)
- 17. (ion that moves into axon cytoplasm during depolarisation)
- 19. cell (a cell wrapped around axons)
- 21. (chemical signal secreted by endocrine glands)
- 22. (___ conduction — movement node to node)
- 23. (needed for muscle contraction)
- 24. (the filaments of myofibrils — thin filaments; myosin is the thick filament)
- 25. channel (voltage-gated channel at the presynaptic membrane)
Down
- 2. (node of Ranvier)
- 3. (filament attached to the M line of sarcomeres)
- 4. (a neurone with no myelin sheath)
- 7. (type of hormone that can bind to intracellular receptors)
- 8. (part of myofibril between two Z discs)
- 10. (hormone that causes glycogenesis in liver cells)
- 14. (hormone that increases blood glucose)
- 16. channel (voltage-gated channel that opens during repolarisation)
- 18. muscle (does not require nerve signal; involuntary — note: cardiac muscle is myogenic too, so some quizzes use “cardiac” as answer depending on wording)
- 19. muscle (striated muscle with multiple nuclei)
- 20. (one of the organs of the CNS)
- 24. / antidiuretic hormone (secreted by pituitary; affects collecting ducts)
- 26. (part transmitting impulse away from cell body)