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[1] [2] It passes obliquely downwards and laterally to the front of the greater tubercle of the humerus. [ 1 ] [ 2 ] It forms two bands [ 3 ] : 908 - an anterior one and a posterior one - that insert into the lesser and greater tubercles of the humerus , respectively.
Muscles are often paired as agonistic and antagonistic muscles. [20] This can be a bit misleading as, in general, it is groups of muscles working together to either make or cancel a movement. [ 21 ] The present table lists some well-known relationships but is not at all complete.
The body contains three types of muscle tissue: (a) skeletal muscle, (b) smooth muscle, and (c) cardiac muscle. On the anterior and posterior views of the muscular system above, superficial muscles (those at the surface) are shown on the right side of the body while deep muscles (those underneath the superficial muscles) are shown on the left ...
The musculoskeletal system is an organ system that gives animals the ability to move to more favorable conditions by using the muscles and skeletal system to engage in locomotion.
The muscular system in vertebrates consists of three different types of muscles: cardiac, skeletal and smooth. Cardiac muscle is a striated muscle that makes up the heart. It is the only type of muscle consisting of branching fibers. Skeletal muscle consists of voluntary muscles attached to the frame of the skeletal system enabling bodily movement.
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The internal intercostal muscles (intercostales interni) are a group of skeletal muscles located between the ribs.They are eleven in number on either side. They commence anteriorly at the sternum, in the intercostal spaces between the cartilages of the true ribs, and at the anterior extremities of the cartilages of the false ribs, and extend backward as far as the angles of the ribs, hence ...
Each alpha motor neuron and the extrafusal muscle fibers innervated by it make up a motor unit. [1] The connection between the alpha motor neuron and the extrafusal muscle fiber is a neuromuscular junction , where the neuron's signal, the action potential , is transduced to the muscle fiber by the neurotransmitter acetylcholine .