Unit 5 Skeletal System Review

Front

What are metacarpals?

Back

Metacarpals are the five long bones in the hand that connect the wrist to the fingers.

Front

Where do osteocytes reside?

Back

Osteocytes reside in small cavities called lacunae within the bone.

Front

What type of bone is a vertebra?

Back

A vertebra is classified as an irregular bone due to its complex shape.

Front

What is the cement line in bone structure?

Back

The cement line is a thin line that separates different layers of bone tissue, indicating the boundaries of osteons.

Front

What is an osteocyte?

Back

An osteocyte is a mature bone cell that maintains the bone matrix and communicates with other bone cells.

Front

What are canaliculi?

Back

Canaliculi are tiny channels in bone that connect lacunae and allow for communication and nutrient exchange between osteocytes.

Front

What is the function of lamellae in bone?

Back

Lamellae are concentric layers of bone matrix that provide strength and structure to the bone.

Front

What is the role of Haversian canals?

Back

Haversian canals are central channels in bone that contain blood vessels and nerves, facilitating nutrient and waste exchange.

Front

What is the pectoral girdle?

Back

The pectoral girdle is the structure that connects the upper limbs to the trunk, consisting of the clavicles and scapulae.

Front

What are the main types of bones in the human body?

Back

The main types of bones are long bones, short bones, flat bones, irregular bones, and sesamoid bones.