MEDICAL PHYSIOLOGY

Detailed explanation-1: -Cartilage (KAR-tul-ij), a flexible, rubbery substance in our joints, supports bones and protects them where they rub against each other.

Detailed explanation-2: -Long bones function to support the weight of the body and facilitate movement. Long bones are mostly located in the appendicular skeleton and include bones in the lower limbs (the tibia, fibula, femur, metatarsals, and phalanges) and bones in the upper limbs (the humerus, radius, ulna, metacarpals, and phalanges).

Detailed explanation-3: -The carpal bones form a U-shaped arrangement which is directed anteriorly. The flexor retinaculum spans this U-shaped area to maintain the alignment of the carpal bones. The medial side of the base of the arch is formed by the pisiform and hook of the hamate.

Detailed explanation-4: -Functionally, the radius and ulna together serve as the primary support structure of the forearm articulating with the humerus and carpal bones as described above. Both bones also serve as origins and insertions for muscles responsible for flexion and extension of the forearm, wrist, and fingers.

Detailed explanation-5: -Skeletal system gives support and strength to the body.