Musculature in the context of "Upper limb"

⭐ In the context of the upper limb, musculature plays a crucial role in enabling which of the following primary functions?

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⭐ Core Definition: Musculature

Skeletal muscle (commonly referred to as muscle) is one of the three types of vertebrate muscle tissue, the others being cardiac muscle and smooth muscle. They are part of the voluntary muscular system and typically are attached by tendons to bones of a skeleton. The skeletal muscle cells are much longer than in the other types of muscle tissue, and are also known as muscle fibers. The tissue of a skeletal muscle is striated – having a striped appearance due to the arrangement of the sarcomeres.

A skeletal muscle contains multiple fascicles – bundles of muscle fibers. Each individual fiber and each muscle is surrounded by a type of connective tissue layer of fascia. Muscle fibers are formed from the fusion of developmental myoblasts in a process known as myogenesis resulting in long multinucleated cells. In these cells, the nuclei, termed myonuclei, are located along the inside of the cell membrane. Muscle fibers also have multiple mitochondria to meet energy needs.

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👉 Musculature in the context of Upper limb

The upper limbs or upper extremities are the forelimbs of an upright-postured tetrapod vertebrate, extending from the scapulae and clavicles down to and including the digits, including all the musculatures and ligaments involved with the shoulder, elbow, wrist and knuckle joints. In humans, each upper limb is divided into the shoulder, arm, elbow, forearm, wrist and hand, and is primarily used for climbing, lifting and manipulating objects. In anatomy, just as arm refers to the upper arm, leg refers to the lower leg.

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Musculature in the context of Bird skeleton

The bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight. Birds have a light skeletal system and light but powerful musculature which, along with circulatory and respiratory systems capable of very high metabolic rates and oxygen supply, permit the bird to fly. The development of a beak has led to evolution of a specially adapted digestive system.

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Musculature in the context of Suboscines

The Tyranni (suboscines) are a suborder of passerine birds that includes more than 1,000 species, a large majority of which are South American. It is named after the type genus Tyrannus. These have a different anatomy of the syrinx musculature than the oscines (songbirds of the larger suborder Passeri), hence the common name of suboscines.

The suboscines originated in South America about 50 million years ago and dispersed into the Old World likely via a trans-Atlantic route during the Oligocene. Their presence in the early Oligocene of Europe is well documented by several fossil specimens.

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LINKED FROM (PARENTS)
← Upper limb ← Bird skeleton ← Upper arm ← Bird anatomy ← Suboscines
LINKS TO (CHILDREN)
Vertebrate → Muscle tissue → Cardiac muscle → Smooth muscle → Somatic nervous system → Tendon → Bone → Skeleton → Muscle cell → Striated muscle tissue → Sarcomere → Muscle fascicle → Connective tissue → Fascia → Cell fusion → Myoblasts → Myogenesis → Multinucleate → Cell nucleus → Sarcolemma → Mitochondria →