The skeletal of the human being skeleton are divided into two groups. The axial skeleton consists of all the skeletal (that kind bony structures) along the body’s lengthy axis. The skeleton of the appendicular skeleton consist of the rest of the skeleton, and also are for this reason called because they space appendages of the axial skeleton. The appendicular skeleton consists of the skeleton of the shoulder girdle, the upper limbs, the pelvic girdle, and the reduced limbs.
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Let’s take it a look in ~ the skeleton of the appendicular skeleton.
1. The skeleton of the Shoulder Girdle
The pectoral or shoulder girdle is composed of the scapulae and clavicles. The shoulder girdle associate the skeletal of the top limbs come the axial skeleton. These bones also carry out attachment for muscles that move the shoulders and upper limbs.
See the skeleton of the shoulder girdle in 3D:
2. Bones of the top Limbs
The upper limbs include the bones of the arm (humerus), forearm (radius and ulna), wrist, and hand. The only bone of the eight is the humerus, which articulates v the forearm bones–the radius and also ulna–at the elbow joint. The ulna is the larger of the 2 forearm bones.
Wrist Bones. The wrist, or carpus, is composed of eight carpal bones. One mnemomic come remember the carpal skeleton is the sentence: Some Lovers Try Positions That They Can’t Handle. The eight carpal bones of the wrist space the Scaphoid, Lunate, Triquetral, Pisiform, Trapezoid, Trapezium, Capitate, Hamate.
3. The bones of the Pelvis
The pelvic girdle is a ring of skeletal attached come the vertebral obelisk that associate the bones of the reduced limbs to the axial skeleton. The pelvic girdle is composed of the right and left hip bones. Every hip bone is a large, flattened, and irregularly shaped fusion of 3 bones: the ilium, ischium, and pubis.
4. The skeletal of the reduced Limbs
The lower limbs encompass the skeletal of the thigh, leg, and foot. The femur is the just bone of the thigh. The articulates through the two bones the the leg–the bigger tibia (commonly well-known as the shin) and smaller fibula. The thigh and also leg bones articulate at the knee joint that is safeguarded and magnified by the patella bone that supports the quadriceps tendon. The bones of the foot include the tarsus, metatarsus, and phalanges.
Foot Bones. The skeletal of the foot covers the tarsal bones of the ankle, the phalanges that type the toes, and the metatarsals that give the foot the arch. Together in the hand, the foot has five metatarsals, 5 proximal phalanges, 5 distal phalanges, however only 4 middle phalanges (as the foot’s “big toe” has only two phalanges).
Ankle Bones. The ankle, or tarsus, consists of seven tarsal bones: the calcaneus, talus, cuboid, navicular, and three cuneiforms.
Foot Arches. The arcs of the foot are developed by the interlocking bones and ligaments of the foot. They offer as shock-asborbing frameworks that support body weight and also distribute anxiety evenly throughout walking.
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