Classroom Instructions and Activities

In the micrograph, how many Osteons are highlighted?

• 1

• 2

• 3

• 4

The diaphysis is primarily made of ______.

• Spongy bone

• Compact bone

• Cartilage

• Marrow

Fill in the blank: The _______ covers the outside of the bone.

• A) Periosteum

• B) Osteon

• C) Lacuna

• D) Canaliculi

What is the function of the concentric lamellae in the Haversian system?

• They house blood vessels

• They form the rings that make up the matrix of compact bone

• They connect osteocytes

• They cover the outside of the bone.

Fill in the blank: The _______ is a bone cell found within the lacuna.

• Osteocyte

• Canaliculi

• Periosteum

• Lamellae

Cancellous bone lacks which of the following?

• A) Blood vessels

• B) Red Marrow

• C) Adipose Tissue

• D) All of the above

Which bones are formed through intramembranous ossification?

• A) Long bones

• B) Vertebrae

• C) Flat bones of the face

• D) Pelvis

Fill in the blank: Endochondral ossification is essential for the development of ______.

• Cranial vault

• Maxilla

• Vertebrae

• Clavicle

What is appositional growth?

• Makes bones longer

• Makes bones wider

• Occurs in epiphyseal plate

• Involves osteoclasts

What is the primary function of osteoclasts in bone tissue?

• To form new bone

• To resorb bone

• To maintain bone matrix

• To supply nutrients to bone