POINT BY POINT SUMMARY
Prepared by Rabbi P. Feldman
of Kollel Iyun Hadaf, Yerushalayim
Rosh Kollel: Rabbi Mordecai Kornfeld
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Previous daf Chulin 45
CHULIN 45 (Purim d'Mukafim) - sponsored by Dr. and Mrs. Shalom Kelman of
Baltimore, Maryland, USA. May Hashem bless them with long years filled with
Torah, Chidushei Torah, and Nachas!
1) HOLES IN THE "KANEH"
(a) (Rav Yehudah): If the Kaneh is riddled with holes, like a
sieve - if the combined size is the majority of the
width, it is Tereifah.
2) THE BRAIN AND SPINAL CORD
(b) Question (R. Yirmeyah - Mishnah): If a skull has a long
thin hole, or small holes - if the combined area is the
area of a drill bit it (is considered incomplete, it)
does not have Tum'as Ohel.
1. This shows that small holes join up to the size of a
single hole (which would inhibit Tum'as Ohel);
(c) Answer: The questioner did not realize that Rav Yehudah
discusses punctures without Chisaron (no tissue of the
Kaneh is missing);
2. Also in the Kaneh, small holes should join up to the
size of an Isar (a coin) to make it Tereifah!
1. (R. Chelbo): If there are holes with Chisaron, if
the total area is like an Isar, it is Tereifah;
(d) (Rabah bar bar Chanah): If a strip was removed from the
Kaneh, if its total area is like an Isar, the animal is
2. If the punctures are without Chisaron, if they join
up to the majority of the width of the Kaneh, it is
(e) Question (R. Yitzchak bar Nachmani): If it is riddled
with holes like a sieve, what is the law?
(f) Answer (R. Yehoshua ben Levi): Holes with Chisaron join
to the size of an Isar, punctures without Chisaron join
up to the majority of the width of the Kaneh.
(g) Question: What is the law regarding birds?
(h) Answer (R. Yitzchak bar Nachmani): One cuts off the area
surrounding the holes; if this covers the majority of the
opening of the Kaneh, it is Tereifah.
(i) (Rav Nachman): If a piece of the Kaneh is cut but still
attached (like a swinging door) - if an Isar could go
through (widthwise), it is Tereifah.
(j) (Rav): If it is cracked (lengthwise), if one Chulya
(ring; Rashi - three rings) on each end remains intact,
it is not Tereifah;
1. (R. Yochanan and R. Yonason): As long as the crack
does not extend to either end, it is Kosher.
(k) (R. Chiya bar Yosef): The entire Kaneh is valid for
slaughter, from the big (top) ring until the branching of
1. (Rava): The bottommost ring is where the animal can
bend its neck when it grazes, as long as one does
not pull the Kaneh from its normal place.
(l) (R. Yochanan and Reish Lakish): If one pulled the Kaneh
and slaughtered, it is invalid;
2. Question (R. Chanina): If the animal stretches out
its Kaneh by itself, is this Kosher for slaughter?
i. This question is unresolved.
1. If the Kaneh was punctured below the chest, the law
of lungs applies (any size puncture makes it
(m) (Beraisa): The Chazeh (chest) of a Shelamim (that is
given to Kohanim) is what faces the ground, from the neck
until the Keres;
1. One (Rashi; Tosfos - two) ribs from each side are
(a) (Mishnah): If the membrane around the brain is punctured
(it is Tereifah).
(b) Version #1 (Rav and Shmuel): Even if only the outer
membrane is punctured, it is Tereifah.
(c) Version #2 (Rav and Shmuel): It is Tereifah only if the
inner membrane is (also) punctured.
(d) (Rabah bar bar Chanah): There are similar membranes
surrounding the testicles.
(e) (R. Shimon ben Pazi): This applies to the part of the
brain in the skull (a puncture of any size makes it
1. From where it leaves the skull towards the spinal
cord, the law of the spinal cord applies (it is only
Tereifah if the majority is cut).
(f) Question: What is considered 'leaving the skull'?
(g) Answer (R. Yitzchak bar Nachmani): Above the bean-shaped
glands at the bottom of the skull is like the brain;
below them is like the spinal cord;
1. If it is even with the glands, I am unsure -
presumably, it is like the brain.
3) "TEREIFOS" OF THE HEART
2. R. Yirmeyah found these glands in a bird.
(a) (Mishnah): If the heart was punctured, reaching to the
4) THE SPINAL CORD
(b) Question (R. Zeira): Does this mean to any interior
chamber, or only to the innermost chamber?
(c) Answer (Abaye - Mishnah): R. Shimon says, only if (the
lung) is punctured to the branches;
1. (Rabah bar Tachlifa): This means, to the central
(d) Rejection: That is no proof - that Mishnah says 'to the
place of the *branches*, the place to which all branches
1. Our Mishnah says 'to its interior' - (perhaps this
means) even a small chamber!
(e) (Rav): Any puncture in Kaneh ha'Lev (this will be
explained) makes it Tereifah;
(f) (Shmuel): It is Tereifah only if the majority is cut.
(g) Question: What is Kaneh ha'Lev?
(h) Answer (Rabah bar Yitzchak): It is Chelev on the ribs
(Rashi; Ra'avad - Chelev of the heart, chest and Kaneh).
(i) Objection: Surely cutting this does not make it a
(j) Correction: Rather, it is a branch of fat between the
lungs that connects to the heart (Rambam - the artery
from the heart to the lungs).
(k) (Ameimar): There are three major Kanim - one (artery)
emanating from the heart, one (the windpipe) from the
lungs, one from the liver (that returns blood from the
body to the heart). (We explain like the Rambam - some
explain that this is also Rashi's opinion, the simple
reading of Rashi is incompatible with what is found
1. The branch that goes to the lungs is like the lungs
(any puncture makes it Tereifah); the branch to the
liver is like the liver (if anything remains, it is
not Tereifah); Rav and Shmuel argued about the
branch to the heart.
2. (Mar bar Chiya): No - the branch that goes to the
lungs is like the liver; the branch to the liver is
like the lungs; Rav and Shmuel argued about the
branch to the heart.
(a) (Mishnah): If the spinal cord was broken...
(b) (Beraisa - Rebbi): If the majority of the spinal cord was
snapped, it is Tereifah; R. Yakov says, even if it was
1. A case occurred, Rebbi ruled like R. Yakov.
(c) Question: What majority does Rebbi require?
2. (Rav Huna): The Halachah is not like R. Yakov.
(d) Version #1 - Answer (Rav): The majority of the 'skin'
(outer membrane) of the cord.
(e) Version #2 - Answer (Rav): The majority of the interior.
1. Version #2 surely admits that if the majority of the
skin is cut, it is Tereifah.
(f) Question: According to Version #1, if the majority of the
interior is cut, what is the law?
(g) Answer: Niyuli taught, only the skin matters, the
interior makes no difference.
1. Rav Noson bar Avin was checking for the majority of
the skin and of the interior.
(h) (Rabah bar bar Chanah): If the cord became so watery that
it flows, or Nismasmes (so soft that it cannot stand), it
2. Rav: The interior makes no difference.
(i) Question (R. Yirmeyah): What if it cannot stand due to
1. This question is unresolved.
(j) (Bei Rav): If the cord became Nismasmes, it is Tereifah;
if it was Nismazmez (part of the interior flowed out), it
(k) Question (Beraisa - R. Shimon ben Elazar): If the
interior of the cord was Nismazmez, it is Tereifah.
(l) Answer: The text of the Beraisa should say 'Nismasmes'.
(m) Objection: But Levi saw a man bang his head, Levi
lamented, 'His brain was Nismazmez'!
1. Suggestion: He lamented that the man will die.
(n) Answer (Abaye): No - he lamented that the man cannot have
(o) Question: How far down does this law of the spinal cord
apply (that cutting the majority makes it Tereifah)?
(p) Answer (Rav Yehudah): It applies until between the
1. Rav Dimi bar Yitzchak wanted to show where this is.
i. On a fat animal, he could not precisely show
this without tearing it out.
2. He cited what Shmuel said - 'Until the first (area
between the branches), if the majority is cut it is
Tereifah; at the third, it is Kosher; I do not know
the law of the second.'
ii. On a thin animal, the hip pressed the flesh
into the cord, the cord was not recognizable.
3. Question (Rav Huna brei d'Rav Yehoshua): When he
says 'until' - does this include (the first area
between the branches) or not?
i. Question (Rav Papa): If it does not include it
- what is the law at the first branching?
4. Answer (Beraisa): A cut at the branching is like a
cut in the flesh (the animal is Kosher).
ii. Question (R. Yirmeyah): If it does include it -
what is the law if the cord is cut in the
branches at the first branching?
i. Suggestion: This refers to a cut at the first
or second branching.
5. Rejection: No, it refers to a cut at the third