PHSI3011 05-1 Bone and Teeth - Structure & Function

1

Trabecular vs cortical bone. Trabecular AKA ❌; Cortical AKA ❌.

Cancellous

Compact

1

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

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

1

90% of bone cells are ( Osteocytes, Osteoblasts, Lining Cells, Collagen, Osteoclasts ) and are ( Long-lived, Short-lived ).

1

Which of the following are involved in FORMING bone:

1

Which of the following are involved in RESORBING bone:

1

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)?

1

OPG = ??

1

Classical Wnt pathway in bone. Wnt pathway allows ( Osteocytes, Osteoclasts, Osteoblasts, Lining Cells ) to control bone mass – e.g. more mechanical force, more bending of bone, sensed by [above], less production of Sclerostin, more bone added.

1

RANKL = ??

1

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

Osteoblast

Osteoclast

Osteocyte

Lining Cell

2

Match the following bone* cells to their function:
Amelobasts = ❌;
Cementoblasts = ❌;
Odontoblasts = ❌;
Osteoblasts = ❌;

Enamel

Cementum

Dentine

Alveolar bone

1

Cells of teeth: Ameloblasts lay down ( Enamel, Dentine, Cementum ), are ( Big closely-packed hydroxyapatite crztlz, Collagen fibres ); and ( Don't, Do ) have (do?) regeneration.

1

Cells of teeth: Cementoblasts lay down ( Cementum, Dentine, Enamel ); are ( Collagen fibres in periodontal ligament, Big closely packed hydroxyapatite crztlz );.

1

Which of the following are used for assessing bone?

PHSI3011 05-1 Bone and Teeth - Structure & Function

PHSI3011 05-1 Bone and Teeth - Structure & Function

PHSI3011 05-1 Bone and Teeth - Structure & Function

Trabecular vs cortical bone. Trabecular AKA ❌; Cortical AKA ❌.

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 Osteocytes Osteoblasts Lining Cells Collagen Osteoclasts( Osteocytes, Osteoblasts, Lining Cells, Collagen, Osteoclasts ) and are Long-lived Short-lived( Long-lived, Short-lived ).

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 Osteocytes Osteoclasts Osteoblasts Lining Cells( Osteocytes, Osteoclasts, Osteoblasts, Lining Cells ) 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 ❌ (numbers, activity, lifespan); Bone resorption depends [most directly] on ❌ (numbers, activity, lifespan).

Match the following bone* cells to their function: Amelobasts = ❌; Cementoblasts = ❌; Odontoblasts = ❌; Osteoblasts = ❌;

Cells of teeth: Ameloblasts lay down Enamel Dentine Cementum( Enamel, Dentine, Cementum ), are Big closely-packed hydroxyapatite crztlz Collagen fibres( Big closely-packed hydroxyapatite crztlz, Collagen fibres ); and Don't Do( Don't, Do ) have (do?) regeneration.

Cells of teeth: Cementoblasts lay down Cementum Dentine Enamel( Cementum, Dentine, Enamel ); are Collagen fibres in periodontal ligament Big closely packed hydroxyapatite crztlz( Collagen fibres in periodontal ligament, Big closely packed hydroxyapatite crztlz );.

Which of the following are used for assessing bone?

What are caries?

90% of bone cells are ( Osteocytes, Osteoblasts, Lining Cells, Collagen, Osteoclasts ) and are ( Long-lived, Short-lived ).

Classical Wnt pathway in bone. Wnt pathway allows ( Osteocytes, Osteoclasts, Osteoblasts, Lining Cells ) to control bone mass – e.g. more mechanical force, more bending of bone, sensed by [above], less production of Sclerostin, more bone added.

Match the following bone* cells to their function:
Amelobasts = ❌;
Cementoblasts = ❌;
Odontoblasts = ❌;
Osteoblasts = ❌;

Cells of teeth: Ameloblasts lay down ( Enamel, Dentine, Cementum ), are ( Big closely-packed hydroxyapatite crztlz, Collagen fibres ); and ( Don't, Do ) have (do?) regeneration.

Cells of teeth: Cementoblasts lay down ( Cementum, Dentine, Enamel ); are ( Collagen fibres in periodontal ligament, Big closely packed hydroxyapatite crztlz );.