What’s the Transmission?

1. External obliques et al., for short
4. Triangular bones of the lower back
9. Taken by mouth
13. Silicate with a layered structure
15. Test of a drug’s effectiveness, for example
16. 1-Across location
17. Name of five Norwegian kings
18. Fix a loose shoelace, perhaps
19. Polydactyl cats have extra ones
20. A neurotransmitter that affects mood and emotions
22. Unconscious periods
23. Certain Egyptian Christian
24. Drink slowly
25. Use the BioRender program, perhaps
27. Parts of hearts
31. Spoke aloud
32. Big cat, also known as a mountain lion
35. React to a ref’s bad call
36. One of a class of lipid-based neurotransmitters
39. Target of some hypertension drugs: Abbr.
40. Members of a cast
41. Propellers of canoes
42. Country enclosed by South Africa
44. High, in Spanish
45. Member of the family Apidae
46. Dog breed known for its corded coat
48. Old anesthetic with the formula (C₂H₅)₂O
51. Most abundant excitatory neurotransmitter in vertebrates
56. Second-person possessive
57. Country where the Micronesian imperial pigeon can be found
58. Evolution by natural selection is a big one
59. Therefore
60. Open sore in the stomach’s lining
61. Large amounts
62. Observed with the eyes
63. Not available, as a seat
64. Sault ___ Marie, Michigan

1. Cognitive psychologist Tversky
2. Substance stored by the gallbladder
3. Evidence of an old surgery
4. Device for sharpening a razor
5. “___ we all?”
6. ___ Field (home stadium of the New York Mets)
7. Liquid precipitation
8. Liquid in a yard
9. Eight-armed cephalopods
10. Laboratory or office, for example
11. Cell surface ___
12. Not as much
14. Fruit that matures on a tree but ripens off the tree
21. Drag behind
22. Wispy clouds
24. Impales
25. Certain mating ritual
26. Goes by car, bike, or horse
27. Common growth medium in a microbiology lab
28. WWII menace
29. “Schitt’s Creek” role played by Catherine O’Hara
30. Lays down turf
31. It should be airtight to create a vacuum
32. Temporary data storage
33. Not fooled by
34. Colorful card game
37. Provide food and drink
38. Betting feature of some poker games
43. Uranus moon named for a Shakespearean fairy king
44. In the style of
46. Culinary mash-up?
47. Reversal of direction
48. What ommatidia make up
49. Ripped
50 Like blue whales
51. Fancy party
52. Uncontrollable factor in some scientific discoveries
53. Big fusses
54. Structure for a geological researcher, perhaps
55. Lack of difficulty
57. Fruit with a woody wall