Week 2 Part 1 Flashcards by Abby Grillmair

Q

Osteoclast

A

Cells that tear down old bones

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Q

Osteoblast

A

Cells that form a bone

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Q

Osteocytes

A

Mature bone cells are surrounded by a matrix

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Q

Skeletal system is

A

The frame that holds up the body

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Q

Different bones

A

Long bones
Short bones
Flat bones
Irregular bones

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Q

Flexion

A

Decreasing the angle of the joint

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Q

Extension

A

Opening the joint

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Q

Plantar Flexion

A

Bending downward

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Q

Dorsiflexion

A

Bending upward

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Q

Abduction

A

Moving the body part away from the midline

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Q

Adduction

A

Moving the body part back towards the midline

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Q

Inversion

A

Turning inward

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Q

Eversion

A

turns outward

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Q

Supination

A

face upward

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Q

Pronation

A

face downward

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Q

Rotation

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A

When a bone spins on its axis

Q

Periosteum

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A

Connective tissue that covers bone tissue

Q

Epiphysis

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A

End of the bones

Q

Area inside the diaphysis is called

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A

Medullary cavity that contains bone marrow

Q

Cartilage is

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A

Firm and has a jelly-like matrix

Q

What is a joint and what holds it together

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A

Where one bone meets another bone
Ligament

Q

Synovial joint

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A

Move alot

Q

Cartilaginous joint

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A

Little movement

Q

Fibrous joint

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A

Do not move at all

Trabeculae

Holes in the spongy bones

How many pairs of true ribs are there

7

How many pairs of false ribs

3

How many pairs of floating ribs are there

2

Attaching to each girdle is a long bone

Humerus in the arms Femur in the legs

Ulna

Radius

Tibia

Fibula

Carpals

Tarsals

Metacarples

Metatarsals

Phalanges