Sinh Lý Hệ Mạch

BS. NGUYỄN HỒNG HÀ
BS. NGUYỄN HỒNG HÀ
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

 !"#$%&'(
#
')&*+
, -
. ,-
/ /-01
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2345*11-67*8
,.59π:
;η
,-$<"=(
5->07(
?-@AB(
η-CD(
-2EB(
.F5.,9;η
π:
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G4B

5;η
?..
, π:
?-*4B
>HBI7=07J*47K$%
L*4M7K
>HBI7**J*47KN
*4M7K(
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Sức cản mạch ()
O * ! 7   D  P- P
>1"Q P 0 $ Q P 71 0
Q $H R K S )G71*1+ *T 
P*4B(
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Áp suất đóng mạch (crical closing pressure)
67 *8  B  " D 3Q J 
3SBU"(V *7*8
 4 D W B 9X7 Y  7 *8 Z
B
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Trong động mạch-
"M=
03
:D7-BQ
RQQ
3[0
\V]7^-
/11

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Trong động mạch (): 2 đặc "nh sinh lý
 VA  R- _` J ' Q  ' ( V
a-
b    [ a c d =  $Z7 
BM(
bP
VAe-ZBX7SBQ
(_W7B"L0HQ
ES"0$7<"(
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Huyết áp: 07W'07")>/
"9+QW'07)>/+(
>/"9-fgh:g>Q*4$Z7=i'(
>/-jgfg>Q*4B(
>/$J.>/'bh&kH7Q*4
B$[(
 >H 7- H * U" >/VV  >/VVQ $J
!jg>(
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Huyết áp: 777>/
Cl=07->/0m
 C  =07- 5 77 1
<"]

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Huyết áp: 0n
on<"=-2=Pp
>/P(\ 7=Pp2q↑ p>/↑(\0 7[
h:gK&7WQ!"'QEAQK
07(
on<"-DPp>/P(
Pp>/P
on<"B-B)+p>/↑(
OBIRQP*40
7P(

Huyết áp: 0n)r+
on<"Yl-"LN"hE
"Q07"LgQss>(
 t0  - L  D 0 7 PQ  9 u
 B( 20  P cQ E 71 p P 
Dp↑ HA (]QWK>/PQ7
9B <" 9W D  Q *" Z 07 
K  v "  $J !( "  c
07(

Huyết áp: điều hòa HA
1. Điều hòa nhanh:
5&9B7aw"
5&9BZ"aw"
5&9Bn7Lx-?nCO5ixpyxp
7&9BzxQz/{>pyYi87D(
5&9BHV]V|)rBn`+

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Huyết áp: điều hòa HA
2. Điều hòa chậm:
" S $ =0?1Q/1*Q/*1
n0wJ87D(

Tĩnh mạch:
}
2Z3RpnD
2E=D
~VO•hCO
2Z"
\V]^-\"1"
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Tĩnh mạch: các yếu tố giúp máu từ TM về m
G4$<"=-/GKp/G"B
hj>F5xpE=
G4W<"=-W'pxp5x
QaWE=(W'p8
`pB*4WMxE8pEx
G4W<"Rl-ApRl`p5'

pWE=