Bone (Class)

you missed four iclickers

C) the answer was osteons are called Haversion systems.

D)

Osteoporosis is a condition where bones become weak and brittle, making them highly susceptible to fractures. Often called a "silent disease," it usually has no early symptoms and is frequently only discovered after a minor fall or sudden strain causes a bone to break.

D)

B)

B)

C)

C)

C)

A)

In osteogenesis imperfecta, the defective component of the bone matrix is Type I collagen.

E)

1. haversian canal 2. lacunae 3. canaliculi 4. concentric lamellae 5. volkmans canal 6. periosteum 7. trabeculae 8. marrow

C)

D)

1. Lacunae
2. Canaliculi
3. Haversian canal
4. Volkmann canal
5. Lamellae

D) Proliferation zone

C)

B)

B)

B)

D)

C)

chondro*cyte*: calcifies the matrix.

B)

D)

use the representative images in the video.

C)

B)

The periosteum controls appositional bone growth because it’s on the outside.

C)

Receptor Activator of Nuclear factor Kappa B Ligand

RANKL is from osteo*blasts* → osteo*clasts*

RANKL binds to RANK receptors on the surface of osteo-clast precursors, triggering them to mature, multiply, and break down bone tissue (resorption).

They test a lot of questions about bone formation.