Examples of Skeletal System in the following topics:
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- The skeletal system is divided into two distinct divisions: the axial skeleton and the appendicular system.
- The skeletal system serves many important functions.
- The number of bones in the human skeletal system is a controversial topic.
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- The musculoskeletal system (also known as the locomotor system) is an organ system that gives animals (including humans) the ability to move, using the muscular and skeletal systems.
- The bones of the skeletal system provide stability to the body analogous to a reinforcement bar in concrete construction.
- The skeletal portion of the system serves as the main storage system for calcium and phosphorus.
- These are skeletal,
smooth,
and cardiac muscle.
- Only skeletal and smooth muscles are considered part
of the musculoskeletal system.
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- A skeletal system is necessary to support the body, protect internal organs, and allow for the movement of an organism.
- This type of skeletal system is found in soft-bodied animals such as sea anemones, earthworms, Cnidaria, and other invertebrates .
- For example, earthworms move by waves of muscular contractions (peristalsis) of the skeletal muscle of the body wall hydrostatic skeleton, which alternately shorten and lengthen the body.
- The skeletal system in vertebrates is divided into the axial skeleton (which consists of the skull, vertebral column, and rib cage), and the appendicular skeleton (which consists of the shoulders, limb bones, the pectoral girdle, and the pelvic girdle).
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- The body's bones (the skeletal system), muscles (muscular system), cartilage, tendons, ligaments, joints, and other connective tissue that supports and binds tissues and organs together comprise the musculoskeletal system.
- For example, the bones of the skeletal system protect the body's internal organs and support the weight of the body .
- The skeletal portion of the system serves as the main storage depot for calcium and phosphorus.
- These potentially debilitating diseases can be difficult to diagnose due to the close relation of the musculoskeletal system to other internal systems.
- The bones of the skeletal system protect the body's internal organs, support the weight of the body, and serve as the main storage system for calcium and phosphorus.
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- The muscular system is closely associated with the skeletal system in facilitating
movement.
- Both voluntary and involuntary muscular system functions are controlled by the nervous system.
- Skeletal muscle mainly attaches to the skeletal system via
tendons to maintain posture and control movement.
- Smooth muscle tissue is associated with numerous organs and tissue systems, such as the digestive system and respiratory system.
- Skeletal muscle of the muscular system is closely associated with the skeletal system and acts to maintain posture and control voluntary movement.
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- The three types of muscle tissue are skeletal, smooth, and cardiac.
- Skeletal muscle mainly attaches to the skeletal system via tendons to maintain posture and control movement for example contraction of the biceps muscle, attached to the scapula and radius, will raise the forearm.
- Smooth muscle tissue is found associated with numerous other organs and tissue systems such as the digestive system or respiratory system.
- It plays an important role in the regulation of flow in such tissues for example aiding the movement of food through the digestive system via peristalsis.
- Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.
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- The peripheral nervous system (PNS) is divided into the somatic nervous system and the autonomic nervous system.
- The somatic nervous system (SoNS) is the part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles.
- The SoNS consists of efferent nerves responsible for stimulating muscle contraction, including all the non-sensory neurons connected with skeletal muscles and skin.
- The somatic nervous system controls all voluntary muscular systems within the body, and also mediates involuntary reflex arcs.
- The enteric nervous system is sometimes considered part of the autonomic nervous system, and sometimes considered an independent system.
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- There are three types of muscle in animal bodies: smooth, skeletal, and cardiac.
- The walls of blood vessels, the tubes of the digestive system, and the tubes of the reproductive systems are composed primarily of smooth muscle.
- Skeletal muscle is under voluntary, somatic nervous system control and is found in the muscles that move bones.
- The main cell of the nervous system is the neuron.
- Smooth muscle cells do not have striations, while skeletal muscle cells do.
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- Skeletal muscles are grouped into fascicles, which are bunches of muscle fibers surrounded by a perimysium.
- Key muscle groups and the associated vascular and
nervous systems can also be separated from other tissue, such as in the
upper arm.
- Beneath the fascia in skeletal muscle is
another layer of connective tissue termed the epimysium which is closely
associated with the fascia.
- It also maintains
the close association of the vascular and nervous system with the
muscle, which is required to deliver necessary metabolites and nerve impulses.
- Skeletal muscle is surrounded by a thick outer layer of connective tissue termed the fascia.
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- Skeletal muscles interact to produce movements by way of anatomical positioning and the coordinated summation of innervation signals.
- Skeletal muscle contractions can be grouped based on the length and frequency of contraction.
- When a weak signal is sent by the central nervous system to contract a muscle, the smaller motor units, being more excitable than the larger ones, are stimulated first.
- For skeletal muscles, the force exerted by the muscle can be controlled by varying the frequency at which action potentials are sent to muscle fibers.
- Explain the summation interactions of skeletal muscles and how they affect movement