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Lecture Exam 2- Membranes > Skelelal System > Flashcards

Skelelal System Flashcards

1
Q

What are the skeletal system functions?

A

Support (primary function), Movement (passive), Protectoion of Vital Organs, Mineral Storage, Blood cell formation (Hemopoiesis)

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2
Q

Describe a compact dense bone.

A

Hard and heavy. Forms surface and diaphysis. Osteons are building blocks.

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3
Q

Describe Cancellous spongy bone

A

Lightweight, fills epiphyses, contains red marrow. Trabeculae are building blocks.

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4
Q

What is Matrix?

A

Mineral Salts (hardness) Collagen (strong and flexible)

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5
Q

What are the three bone cells

A

Osteoblasts, Osteocyte, and Osteoclasts

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6
Q

What is Osteoblast

A

BUILD. Secrete to build bone.

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7
Q

What is Osteocytes?

A

Mature bone cells. Trapped osteoblasts.

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8
Q

What are Osteoclasts?

A

CRASH. Destroys bone (old bone) Enzymes digest protein, acids dissolve minerals, forms marrow cavity, involved in remodeling

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9
Q

What are the skeletal divisions?

A

Axial and Appendicular

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10
Q

What is Axial?

A

skull, vetebra, ribs, sternum

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11
Q

What is Appendicular?

A

upper, lower limbs, arms and legs

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12
Q

What is an example of long bone?

A

humerus, femur

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13
Q

What is an example of short bone?

A

carpal, tarsal

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14
Q

Example of short bone?

A

Sternum

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15
Q

Example of irregular bone?

A

vertebra

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16
Q

Sesamoid bone

A

knee

17
Q

Sutural between cranial bones

A

glenoid suture

18
Q

What is in a long bone anatomy?

A

Diaphysis, Epiphyses, Articular cartilage, Epiphyeal line, Periosteum, Nurtient Foramina, Medullary cavity, Endosteum

19
Q

What is Diaphysis?

A

shaft made of compact bone

20
Q

What is Epiphyses?

A

ends filled with spongy bone containing red marrow

21
Q

What is Articular cartliage?

A

It covers epiphyses

22
Q

What is an Epiphyseal line?

A

It indicates earlier location of epiphyseal growth plate.

23
Q

What is Periosteum?

A

is connective tissue covering bone/

24
Q

What is Nutrient Foramina?

A

holes allowing for penetration of arteries

25
Q

Medullary cavity

A

contains yellow marrow

26
Q

What is Endosteum?

A

Connective tissue lining medullary cavity.

27
Q

What is ossification?

A

replacement of other connective tissue with bone

28
Q

Bone development begins during

A

2nd month of gestation

29
Q

Bone development

A

continure

Lecture Exam 2- Membranes (2 decks)

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