Muscle tissue is like the cool superhero of our body! They have this neat power: contractility, which means they can shorten in length. Imagine Spiderman's web-shooting action, but instead of shooting webs, muscles pull!
Real-world example: When you bend your arm, the bicep muscle contracts (or shortens) while its antagonist, the tricep, lengthens.
Muscles are social creatures; they like to work in pairs, called antagonistic pairs. When one contracts, its buddy lengthens.
Real-world example: Think of it like a seesaw. When one side goes up, the other goes down!
These are like long, unbranched tubes all aligned together. Each tube is called a muscle fibre.
Fun fact: They come together by fusing many baby muscle cells (embryonic muscle cells).
Despite being enclosed by a single plasma membrane, they are a bit rebellious with multiple nuclei and being much longer than typical cells.
Real-world example: If muscle fibres were a train, typical cells would be just one compartment of that train.
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Muscle tissue is like the cool superhero of our body! They have this neat power: contractility, which means they can shorten in length. Imagine Spiderman's web-shooting action, but instead of shooting webs, muscles pull!
Real-world example: When you bend your arm, the bicep muscle contracts (or shortens) while its antagonist, the tricep, lengthens.
Muscles are social creatures; they like to work in pairs, called antagonistic pairs. When one contracts, its buddy lengthens.
Real-world example: Think of it like a seesaw. When one side goes up, the other goes down!
These are like long, unbranched tubes all aligned together. Each tube is called a muscle fibre.
Fun fact: They come together by fusing many baby muscle cells (embryonic muscle cells).
Despite being enclosed by a single plasma membrane, they are a bit rebellious with multiple nuclei and being much longer than typical cells.
Real-world example: If muscle fibres were a train, typical cells would be just one compartment of that train.
Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟