Skeletal System Practice Flashcards

Vocabulary based flashcards covering the functions, structure, joint types, injuries, and characteristics of the human skeletal system.

Functions of the Skeletal System

Supports the body, anchors muscle, protects organs, makes blood, and stores minerals.

Bone Composition

Living cells and minerals: Calcium and Phosphorous.

Joints

The location where $2$ bones meet.

Freely movable joints

Categories includes ball and socket, hinge, pivot, saddle, and gliding.

Slightly movable joints

Joined by cartilaginous joints (discs) which act as shock absorbers, such as the vertebrate.

Immovable joints

The type of joints found in the cranium.

Ligaments

Connective tissue that connects bone to bone.

Tendons

Connective tissue that connects muscle to bone.

Sprain

An injury to ligaments and/or tendons occurring when a joint is twisted.

Bursitis

A condition characterized by fluid build-up in joints.

Arthritis

Painful degeneration of movable joints where immune cells attack membranes, weaken cartilage, and deposit bone in its place.

Fractures

Another term for broken bones.

Osteoporosis

A condition characterized by the loss of bone density.

Causes of Female Susceptibility to Osteoporosis

Smaller bones, calcium loss during the menstrual cycle, and decline in sex hormones during menopause.

Osteoporosis Prevention

Regular exercise and a calcium-rich diet in teens and twenties.

Average bone count

The human body contains $206$ bones.

Femur

The largest bone in the human body.

Smallest bone

Bone located in the ear.

Ossification

The process of replacing cartilage with bone over time.