What are the three events, one cause and two effects, in the paragraph quoted?"In the fractional moment before horror paralyzed him, as he stared...

In Jack Finney's painfully suspenseful and horribly ironic
short story "Contents of the Dead Man's Pockets," the cause
in the paragraph quoted,

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In the fractional moment before horror paralyzed
him, as he stared between his legs at that terrible length of street far beneath him, a
fragment of his mind raised his body in a spasmodic jerk to an upright position again,
but so violently that his head scraped hard against the wall, bouncing off it, and his
body swayed outward to the knife edge of balance, and he very nearly plunged backward
and fell. Then he was leaning far into the corner again, squeezing and pushing into it,
not only his face but his chest and stomach, his back arching; and his finger tips clung
with all the pressure of his pulling arms to the shoulder-high half-inch indentation in
the bricks.

is the site and
perspective Tom Benecke saw when he looked down to the street below: "[Tom] stared
between his legs at that terrible length of street far beneath him." This look and the
site it forced upon him caused two results, or affects, that were not automatic, that is
to say not in Tom's conscious control.

The first
affect was that "a fragment of his mind" forced a flight
response [from his amygdala brain center] that jerked his body from a leaning-over
position to an "upright position again." This would have been an unqualified good affect
if it hadn't been for the nature of the second affect.

The
second affect of the initial cause of seeing the street
perspective was that the jerking body motion, not consciously activated by Tom, threw
him so violently upright that his head hit and bounced off of the brick wall (which was
facing) of the building that he was on the wrong side
of.

This bounce had a corollary affect in that he was
thrown backward to what Finney calls the "knife edge of balance" where a metaphoric or
literal breeze or pigeon's feather could tip him one way or the other. But in a
conscious reaction to the second affect of the original cause, Tom
forced himself back against the brick wall again where he clung with his whole body and
the "pressure of his pulling arms."