PHSI3011 05-1 Bone and Teeth - Structure & Function

Trabecular vs cortical bone. Trabecular AKA [blank_start]__________[blank_end]; Cortical AKA [blank_start]__________[blank_end].

Bone matrix composition. Which of the following [mainly] gives bones its TENSILE strength:

Bone matrix composition. Which of the following [mainly] gives bones its COMPRESSIVE strength:

90% of bone cells are [blank_start]__________[blank_end] and are [blank_start]__________[blank_end].

Which of the following are involved in FORMING bone:

Which of the following are involved in RESORBING bone:

Which bone cells are the ones that are embedded in the bone matrix and involved in sensing mechanical forces (and/or apoptosing to trigger resorption)?

OPG = ??

Classical Wnt pathway in bone. Wnt pathway allows [blank_start]__________[blank_end] to control bone mass – e.g. more mechanical force, more bending of bone, sensed by [above], less production of Sclerostin, more bone added.

RANKL = ??

Bone formation depends [most directly] on [blank_start]__________[blank_end] (numbers, activity, lifespan); Bone resorption depends [most directly] on [blank_start]__________[blank_end] (numbers, activity, lifespan).

Match the following bone* cells to their function: Amelobasts = [blank_start]__________[blank_end]; Cementoblasts = [blank_start]__________[blank_end]; Odontoblasts = [blank_start]__________[blank_end]; Osteoblasts = [blank_start]__________[blank_end];

Cells of teeth: Ameloblasts lay down [blank_start]__________[blank_end], are [blank_start]__________[blank_end]; and [blank_start]__________[blank_end] have (do?) regeneration.

Cells of teeth: Cementoblasts lay down [blank_start]__________[blank_end]; are [blank_start]__________[blank_end];.

Which of the following are used for assessing bone?

What are caries?