What is the function of the thrombocytes?

 

It is part of the rib cage and serves as an attachment site for some abdominal muscles.

Choice A is wrong because the hyoid bone is a U-shaped bone located in the neck, above the larynx. It does not articulate with any other bone and supports the tongue and laryngeal muscles.

Choice B is wrong because the ossa coxae are the hip bones that form the pelvic girdle. They are composed of three fused bones: ilium, ischium and pubis.

Choice C is wrong because sesamoid bones are small, round bones that are embedded in tendons.

They protect the tendons from wear and tear and increase their leverage. The most common sesamoid bone is the patella (kneecap).

The correct answer is choice C. Hinge.

The elbow joint is a synovial joint that allows for flexion and extension of the forearm. It is classified as a hinge joint because it permits movement in only one plane (uniaxial).

Choice A. Saddle is wrong because a saddle joint allows for movement in two planes (biaxial), such as the joint between the trapezium carpal bone and the first metacarpal bone at the base of the thumb.

Choice B. Pivot is wrong because a pivot joint allows for rotational movement around a single axis, such as the joint between the atlas and axis vertebrae.

Choice D. Ball and socket is wrong because a ball and socket joint allows for movement in three planes (multiaxial), such as the joint between the humerus and scapula at the shoulder.

Choice A is wrong because callus formation and callus ossification occur after hematoma formation, not before.

Choice B is wrong because bone remodeling is the last stage of bone repair, not the first.

Choice C is wrong because hematoma formation is the first stage of bone repair, not the third.

Hematoma formation is when blood clots form at the site of the fracture.

Callus formation is when a soft mass of tissue forms between the broken ends of the bone.

Callus ossification is when the callus is replaced by woven bone and cartilage.

Bone remodeling is when the excess bone tissue is removed and compact bone is formed

This is a process in which compact and spongy bone develops directly from sheets of mesenchymal (undifferentiated) connective tissue.

Choice A is wrong because vertebrae are formed by endochondral ossification, which is a process in which bone develops from a pre-existing cartilage model.

Choice B is wrong because long bones of arms and legs are also formed by endochondral ossification.

Choice C is wrong because bones of the pelvic girdle are also formed by endochondral ossification.