Structure of skeletal muscles
This animation demonstrates the fine molecular structure and mechanism of muscles.
muscles, muscle function, motion, contraction, relaxation, muscle work, skeletal muscle, striated muscle, muscle fascicle, muscle fibre, myofibril, epimysium, actin, myosin, muscle protein, moving, tendon, sarcomere, human, biology
Skeletal muscles form the active part of the locomotor system: they move the bones they are attached to.
The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.
Bones of the lower limbs are connected to the trunk by the pelvis.
Bones of the upper limbs form the pectoral girdle and the arms.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
This animation introduces the most important organ systems of the human body.
Our body´s internal support structure to which skeletal muscles are attached.
The knee joint is made up by the femur, the tibia and the kneecap.
The skin is the soft outer covering of our body, its three layers are the epidermis, the dermis and the hypodermis.
The central nervous system consists of the brain and the spinal cord, the peripheral nervous system consists of nerves and ganglia.
The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
This scene summarizes the main organs of the human body.
The two main parts of the central nervous system, the brain and the spinal cord are protected by the skull and the spinal column.
Human bones are joined together by cartilaginous or synovial joints, sutures or they can fuse together.
Surface epithelia cover the external and internal surfaces of the body
Synovial joints can be categorised by the direction of movement they allow.
This scene presents the basic components of the human body.
The arms are moved by flexor and extensor muscles.
The reflex triggered by the stretching of the thigh extensor muscle is the patellar reflex.
The withdrawal reflex is a spinal reflex that ensures moving away from potentially damaging stimuli.