~Z~

Ae Typicel skeletal muscle consists of+«

le Fasoiculi or mscle bundles

2e Fassia is a fibrous tissue sheath enveloping the fasciouli.

Se Pe ium externum is the areolar tissue surrounding and
| ing each fascioulue os neighbor «

de at ysium ae eoapooler tisene which holds the elon-
ge mascle fibres of the fasciculus together. The pore
imysium internum is connected on one hand to the sarcolemma,
and on the other to the perimysium externum, by whieh it is
brought in connection with part of e tendon.

Ille Chemistry of Muscle

Ae Water «= 75%
Be Pate «<« 2%
Ce Saltese <« “1%
De Carbohydrates «- 0.5%
The glycogen eventually forms lectic acid. Then lactic acid and
energy for resynthesis inte phosphocreatine.
le Gluedcse
Be Glycogen
These give rise to:
Ee Lactose «-- 0.16%
Fe Greatine=- 0.4¢
Ge Phosphocreatine -~ 64%
or

in
phospogen Praha tom"?

The phosphocreatine ig phosporic acid and creatine and energy
for mecle contraction. 1/8 of Lactic acid and Oe c0* 4 #
plus energy in order to resynthesize 4/6 of lestic acid in
glyecogens

Lack of Oxygen ie the real cause of mecle fatigue sinse the
lactic seid cannot act to be changed back into ¢lycofens