Sliding Filament theory

0.0(0)
studied byStudied by 0 people
linked notesView linked note
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Get a hint
Hint

Muscle

Get a hint
Hint

Bundle of muscle fibers.

Get a hint
Hint

Muscle fiber

Get a hint
Hint

Consists of myofibrils.

Card Sorting

1/15

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

16 Terms

1
New cards

Muscle

Bundle of muscle fibers.

2
New cards

Muscle fiber

Consists of myofibrils.

3
New cards

Myofibrils

Composed of myofilaments (actin + myosin).

4
New cards

Actin

Thin myofilament.

5
New cards

Myosin

Thick myofilament.

6
New cards

Sarcomere

Functional unit of myofibril, separated by Z-lines.

7
New cards

I band

Distance between myosin strands.

8
New cards

A band

Length of myosin.

9
New cards

H zone

Distance between actin strands.

10
New cards

Z line

End of the sarcomere.

11
New cards

Sarcoplasmic reticulum

Stores calcium ions.

12
New cards

Troponin

Binds calcium ions, allowing contraction to begin.

13
New cards

ATP

Hydrolyzed to energize myosin heads for the power stroke.

14
New cards

Power stroke

Myosin attaches to actin, pulls filaments, and releases energy.

15
New cards

Ratchet motion

Movement of myosin head during contraction.

16
New cards

Contraction cycle

Continues with ATP and calcium availability.