Fibrils Collection

Collagen synthesis and assembly, artwork. At left is a fibroblast, the cell that synthesises helical protein chains of collagen (wavy lines)

Cardiac muscle, TEM
Cardiac muscle. Coloured transmission electron micrograph (TEM) of cardiac muscle fibrils (orange)from a healthy heart. Mitochondria (pink) supply the muscle cells with energy

Cardiac muscle and capillary, TEM
Cardiac muscle. Coloured transmission electron micrograph (TEM) of cardiac muscle fibrils (purple)from a healthy heart. Mitochondria (green) supply the muscle cells with energy

Sugar uptake in muscles, diagram
Sugar uptake in muscles. Diagram showing sugar from a drink (upper right) being taken up by the muscles of the human body

Algae cell wall, SEM
Algae cell wall. Coloured scanning electron micrograph (SEM) of cellulose microfibrils (strands) in a Chaetomorpha sp. algal cell wall

Human muscle fibres, diagram
Human muscle fibres. Diagram showing the structure of human muscles from the cellular to the macroscopic level. At lower right, muscle cells contain many myofibrils

Skeletal muscle, TEM
Skeletal muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through skeletal, or striated, muscle

Cardiac muscle. Coloured scanning electron micrograph (SEM) of heart (cardiac) muscle fibrils (yellow). The membrane around the muscle has been torn (yellow)

Malaria parasite, TEM
Malaria parasite. Image 4 of 10. Coloured transmission electron micrograph (TEM) of a sexual male malaria (Plasmodium sp.) microgametocyte in a mosquito (Anopheles sp.) gut

Cardiac muscle, SEM
Cardiac muscle. Coloured scanning electron micrograph (SEM) of a bundle of cardiac muscle fibrils (green) from a healthy heart. Mitochondria (round, orange) supply the muscle cells with energy

Mimivirus, artwork
Mimivirus. Computer artwork of an Acanthamoeba polyphaga mimivirus (APMV) particle. APMV is commonly known as the mimivirus

Hair shaft anatomy, artwork
Hair shaft anatomy. Cutaway artwork showing the internal structure and anatomy of a human hair. Hair is made of a fibrous protein called keratin

Damaged cardiac tissue, artwork
Damaged cardiac tissue. Artwork of damaged heart fibres and cells in heart muscle tissue (myocardium). This can occur due to reduced blood supply (ischaemia)

Heart muscle fibres, SEM
Heart muscle fibres. Coloured scanning electron micrograph (SEM) of cardiac muscle fibrils (pink) from a healthy heart. The muscle fibrils, or myofibrils

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"Fibrils: Unveiling the Intricate Web of Collagen Synthesis and Assembly" Collagen synthesis and assembly form the foundation of fibril formation, as depicted in this captivating artwork. These microscopic structures play a vital role in various biological processes, including cardiac muscle function. In a stunning transmission electron microscopy (TEM) image, we witness the intricate connection between cardiac muscle fibers and capillaries. This close interaction ensures efficient oxygen supply to sustain the demanding workload of the heart. Delving deeper into sugar uptake within muscles, a detailed diagram illustrates how essential nutrients are transported to fuel muscular activity. The complexity behind this process becomes apparent as we explore its intricacies. Shifting our focus to nature's wonders, an algae cell wall is beautifully captured using scanning electron microscopy (SEM). The fibrous composition of this structure showcases nature's ability to create robust yet flexible barriers for protection and support. Examining human muscle fibers through a comprehensive diagram reveals their organized arrangement. Each fiber contributes to overall strength and movement capabilities while highlighting their unique characteristics within different types of muscles. Returning to TEM imagery, we once again observe the harmonious relationship between cardiac muscle cells and capillaries. This interplay highlights how these specialized cells work together seamlessly for optimal heart performance. Zooming even closer with SEM technology, we gain insight into the intricate details that make up cardiac muscle tissue itself. Its distinct pattern emphasizes both its strength and flexibility—essential qualities for maintaining proper heart function. Cardiac muscles stand out due to their remarkable abilities; they tirelessly contract without fatigue throughout our lives. TEM images capture their structural elegance while reminding us of their crucial role in sustaining life-sustaining circulation. Expanding our exploration further, skeletal muscles come into view through TEM imaging—revealing another level of complexity within striated fibers responsible for voluntary movements such as walking or lifting weights. Once more utilizing SEM techniques on cardiac muscles allows us to appreciate their three-dimensional architecture.