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Summary Locomotion and movements

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Biology digital notes for highschool students. Easy to read and understand illustrative notes. Detailed explanation of every topic. Reading of this document is tough for understanding the important concepts of the topic

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  • March 7, 2024
  • 17
  • 2023/2024
  • Summary
  • Secondary school
  • 5
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Locomotion and movement
Muscular system
Locomotion Movement

& - a
All locomotion are movement but all movement
are not locomotion
.



MOVEMENT

movement

*
1 Amoeboid

pseudopodia
-




whc +
macrophage
-




2
Ciliary movement
ciliated
eg epithelium of fallopian take
-




-

trachea

3
-
Flagellated movement

sperm

,4) Muscular movement
-
muscle


MUSCLE
Mesodermal
origin
-




properties exitability
:
-
↳ -




extemibility
-




clasticity
-




contractability
-




Types
:



&
Skeletal zz
-
multinucleated
-




voluntary movement
-

stricted Cardiac
cylinderical
-




Smooth -



branched
-

uninucleated -


intercalated
spindle shaped disc
-




(i
striations
no
un-faintly
-




-




involuntary , u

striated
m
=
-



visceral

, Skeletal muscle

muscle
-

striated -
*
-
:




muscle
fasciculi
(cell)
- ↓ fibre


Sarcoplasm microfibril
* E
L
sarcolema microfilament
thick thin

SARCOMERE myosin
activ

SARCOMERE
Osin
M my




i
i ↑ M
actin




i
↑ M




O zone
H O zone



I-Band A-Band
isotopic (anisotopic)
Sarcomere-
from 2 to Z
-




=
region
1 I band + 1A-band

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