Chapter 6 Bones and Joints_1

Flat bones provide protection for the brain and the organs of the abdomen.

The end portions of long bones are known as diaphyses

Irregular bones of the body include the Wormian bones found in the skull.

"The appendicular skeleton includes bones that form the skull, vertebral column and ribcages."

The matrix of protein fibers found in the bone is composed of albumin.

"The place within the bone where red blood cells, white blood cells, and platelets are produced is called the osteon."

"In places where a cartilage cover is lacking, the long bone is covered with a connective tissue membrane called the epiosteum."

The fundamental anatomical unit of compact bone is called the osteon.

"Bone formation is carried on the osteoblasts, which later become inactive cells called osteoclasts."

Spaces within the rings of an osteon contain the osteocytes and are known as lamellae.

Intramembranous ossification is a type of bone formation that occurs in bones of legs.

Endochondral ossification takes place at the diaphysis plate.

The lengthening of a long bone comes to an end when the epiphyseal plate turns to cartilage.

Osteoclasts dissove bone and supply the body with phosphate and calcium.

Osteoporosis is a condition characterized by excessive buildup of bone.

Those joints that are freely movable are known as synarthroses.

"Where the frontal bone of the skull meets the two parietal bones, the joint is called a suture."

A fibrous membrane connects the shafts of two adjacent long bones in a joint known as a gomphosis.

"The pubic symphysis, the place where the two bubic bones come together is an example of a diarthrosis."

The synovial fluid lubricates the joint where two flat bones articulate.

Fluid-filled sacs called bursae are found in the patella of the knee and between the skin and bony prominences lying beneath the skin.

"Where the femur articulates with the acetabulum, the joint is known as a ball-and-socket joint."

A condyloid joint is a type of diarthotic joint in which movement occurs in one plane only.

A flexion refers to the movement taking place at a joint to increase the angle between two bones.

An abduction is a joint movement in which a body part moves away from the midline, while a supination is a movement in which the body part moves toward the midline.