Are these Skeleton and Movement notes free?

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What does the Skeleton and Movement revision sheet cover?

Movement vs Locomotion, Three Muscle Types, By Control, Where a Muscle Sits, and What It's Called, Three Roles in One Movement, Agonist (prime mover), Synergist, Antagonist, Antagonistic Pairs, Named, Myosin and Actin, the Two Filaments, Sliding Filament Theory, Mechanism of Contraction, Ca2+ released.

Is this for Class 11 Maharashtra HSC Biology?

Yes, it is written for the Maharashtra HSC Biology syllabus.

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Skeleton and Movement — Class 11 Maharashtra HSC Biology revision notes

A 6-page visual revision sheet for Skeleton and Movement, written for Class 11 Maharashtra HSC Biology. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.

Skeleton and Movement revision notes, page 1 of 6 — A preview of page 1 — all 6 pages open full size in the app.

Skeleton and Movement in one look

206 bones, three muscle types, and the sliding filaments that turn a chemical signal into a pull

Movement vs Locomotion

movement: internal or external, voluntary or involuntary
locomotion: a change in the whole body's location, for food, shelter, mate, breeding ground or escape
all locomotion is movement, not the reverse: peristalsis moves but does not relocate the animal
four basic locomotory movements: amoeboid (pseudopodia, e.g. leucocytes)
ciliary (cilia, e.g. Paramecium moving food through the cytopharynx)
flagellar (flagella, e.g. sperm), muscular (muscles + bones + joints)

Three Muscle Types, By Control

Type	Control	Where
smooth	involuntary	peristalsis in the gut, blood vessel constriction/dilation
cardiac	involuntary, rhythmic	contraction and relaxation of the heart
striated (skeletal)	voluntary	limbs, head, trunk, eyes; attached to bone by inelastic collagen tendons

Where a Muscle Sits, and What It's Called

the bulk of a muscle usually sits on the bone ABOVE the one it moves
e.g. biceps and triceps, which move the forearm, sit in the upper arm
at a joint one bone is stationary, one movable
end on the stationary bone: origin; on the movable bone: insertion
the thick middle is the belly
fibres concentrate in the middle, taper at the ends: large muscles are fusiform

Three Roles in One Movement

Agonist (prime mover): brings about the initial movement, e.g. biceps flexing the elbow
Synergist: assists the prime mover, e.g. brachialis assisting biceps
Antagonist: brings the opposite action, e.g. triceps extending against biceps

Page 1 of 6. The full sheet, all 6 pages, opens free in the app.

What this Skeleton and Movement sheet covers

Movement vs Locomotion
Three Muscle Types, By Control
Where a Muscle Sits, and What It's Called
Three Roles in One Movement
Agonist (prime mover)
Synergist
Antagonist
Antagonistic Pairs, Named
Myosin and Actin, the Two Filaments
Sliding Filament Theory
Mechanism of Contraction
Ca2+ released
Active sites exposed
Actomyosin forms, slides
Relaxation Is Active Too
Properties Under Electrical Stimulation
Oxygen Debt and Rigor Mortis
Bone, Cartilage and the Lever Analogy
Three Classes of Lever, In the Body
Class I
Class II
Class III
The 206-Bone Plan
Where the 206 Bones Are
Vertebral Column
Thoracic Cage and Ribs
Joints, By Movement Allowed
Six Kinds of Synovial Joint
Muscle, Bone and Joint Disorders
Traps that cost marks
Tricks that save time

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