Bone Tissue and cells

Multiple Choice

Which of the following best describes cancellous (spongy) bone?

• It is dense and solid in appearance.

• It is characterized by open space partially filled with needle-like structures.

• It is found only in the outer layer of bones.

• It contains only osteocytes and no other structures.

Open Ended

Why is it important for bones to have both compact and cancellous (spongy) structures?

Multiple Choice

Which of the following best describes the tensile strength of bone tissue?

• Nearly equal to cast iron at less than one third the weight

• Much weaker than cast iron

• Stronger than steel at the same weight

• Equal to wood at the same weight

Multiple Choice

Which structures are found in an osteon of compact bone?

• Lamella, lacunae, canaliculi, Haversian canal

• Trabeculae, periosteum, endosteum, marrow

• Osteocyte, chondrocyte, fibroblast, adipocyte

• Blood vessels, nerves, cartilage, ligaments

Multiple Choice

Which of the following are functions of the Haversian canal in compact bone?

• Contains blood vessels and lymphatic vessels

• Stores fat

• Produces red blood cells

• Connects to the periosteum

Multiple Choice

Which type of bone cell is responsible for synthesizing and secreting osteoid, an important part of the ground substance?

• Osteoblasts

• Osteoclasts

• Osteocytes

• Chondrocytes

Multiple Select

Which of the following statements are true about osteoclasts?

• They are giant multinucleate cells

• They are responsible for the active erosion of bone minerals

• They synthesize and secrete osteoid

• They contain large numbers of mitochondria and lysosomes

Open Ended

Explain the difference between red marrow and yellow marrow, including their functions and changes throughout a person's lifetime.

Multiple Choice

Which bones in an adult are most likely to still contain red marrow?

• Ribs, vertebrae, humerus, pelvis, femur

• Radius, ulna, tibia, fibula

• Scapula, clavicle, sternum, patella

• Mandible, maxilla, temporal, occipital

Hotspot

Which label points to Sharpey's fibers?

Multiple Choice

How do compact bone and cancellous (spongy) bone differ in their structure and appearance?

• Compact bone is dense and solid, while cancellous bone has open spaces with needle-like structures.

• Compact bone has open spaces, while cancellous bone is dense and solid.

• Both types of bone have the same structure and appearance.

• Cancellous bone is found only in children, while compact bone is found only in adults.

Match

Match the following

• Volkmann's canal

• Haversian canal

• lacunae

• lamellae

F

G

H

I

• F

• G

• H

• I

Hotspot

Identify the area that consists of compact bone

Hotspot

Which number is pointing to a lacuna?

Hotspot

Which label points to a central canal?

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Labelling

Identify the following structures.

Drag labels to their correct position on the image

lacuna

bone matrix

osteocyte

canaliculus

Labelling

Identify the various types of lamellae in the image.

Drag labels to their correct position on the image

inner circumferential

interstitial

irregular

outer circumferential

concentric

Multiple Choice

The small spaces in bone tissue that are holes in which osteocytes reside are called _______________.

• Trabeculae

• Volkmann's canals

• Haversian canals

• Lacunae

Multiple Select

Osteoclasts, ___________ and ___________ are bone cells.

• Osteoblasts

• Osteohyalines

• Osteocytes

• Osteocells

Multiple Choice

The __________ is also referred to as the organic matrix.

• Osteocyte

• Tissue

• Fibrocartilage

• Osteiod

Multiple Select

The matrix consists of ______________ and _____________.

• Ground substance

• Collagen fibers

• Red marrow

• Yellow marrow

Multiple Choice

The function of the matrix is to provide the bone with ____________.

• Strength

• Resilance

• Flexibility

• Porousness