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Biolgy > Skelatal System > Flashcards

Skelatal System Flashcards

(45 cards)

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1
Q

What are the main components of the skeletal system?

A

Bones, cartilage, and ligaments

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2
Q

How many bones does the average adult have?

A

206 bones

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3
Q

What happens to the number of bones as you age?

A

You are born with more bones, but they fuse together as you age.

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4
Q

What is one of the primary functions of the skeletal system?

A

Protection, and suppoy

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5
Q

Which vital organs are protected by the ribs?

A

Heart and lungs

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6
Q

What does the skull protect?

A

The brain

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7
Q

What is contained in some bones that is crucial for blood cell production?

A

Red marrow

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8
Q

What types of blood cells are made in red marrow?

A

Red and white blood cells and platelets

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9
Q

What minerals does the skeletal system store?

A

Phosphorus and calcium

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10
Q

What else does the skeletal system store?

A

Fat

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11
Q

How do muscles facilitate movement in the skeletal system?

A

Muscles pull on bones to allow for movement.

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12
Q

What are the main components of the skeletal system?

A

Bones, cartilage, and ligaments

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13
Q

How many bones does the average adult have?

A

206 bones

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14
Q

What happens to the number of bones as you age?

A

You are born with more bones, but they fuse together as you age.

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15
Q

What is one of the primary functions of the skeletal system?

A

Protection

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16
Q

Which vital organs are protected by the ribs?

A

Heart and lungs

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17
Q

What does the skull protect?

A

The brain

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18
Q

What is contained in some bones that is crucial for blood cell production?

A

Red marrow

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19
Q

What types of blood cells are made in red marrow?

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A

Red and white blood cells and platelets

20
Q

What minerals does the skeletal system store?

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A

Phosphorus and calcium

21
Q

What else does the skeletal system store?

22
Q

How do muscles facilitate movement in the skeletal system?

Study These Flashcards
A

Muscles pull on bones to allow for movement.

23
Q

What are the types of bone?

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A
  1. Long: Big movements (Ex: femur, humerus)
  2. Short: Provide support (Ex: Carpals)
  3. Flat: Protection (Ex: ribs, sternum)
  4. Irregular: Various purposes (Ex: Vertebrae)
  5. Sesamoid: Surrounded by tendons
24
Q

What are the main components of a bone?

Study These Flashcards
A

Made of connective tissue and minerals (mainly Ca and P)

25
What is compact bone?
Outer shell of bones is compact and hard. Contains tiny canals (openings) to allow blood vessels through.
26
What is spongy bone?
Porous (lots of gaps/holes). Mostly at end of long bones. Distributes force and acts as a shock absorber.
27
What is red marrow?
Produces blood cells. Found in center of long bones.
28
What is yellow marrow?
Stores fat cells. Found in center of long bones of adults.
29
What is cartilage?
Soft and flexible tissue at end of long bones.
30
What are bone joints?
Where two or more bones meet. Moveable joints contain oil-like fluid to lubricate joints.
31
What is a ball and socket joint?
Allows free movement in all directions. ## Footnote Example: Shoulder
32
What are hinge joints?
Allows flexing and extension of limbs. ## Footnote Example: Elbow
33
What are gliding joints?
Allows bones to glide/slide over one another. ## Footnote Example: Carpals in wrist
34
What are ligaments?
Connective tissue that attaches bone to bone at joints. ## Footnote Example: Ligaments of the knee
35
What is the long bone?
Long big movements Ex;femur and humerus
36
What is the short bone?
Provides support Ex: carpals
37
What is the flat bone?
Protection Ex: ribs, sternum
38
What is the irregular bone?
Various purposes, ex vertebrae
39
What is the sesamoid bone?
Surrrounded by tendons Ex: carpals
40
What are osteoblasts?
Cells that build bones.
41
What are osteoclasts?
Cells that break down bone.
42
What is osteoarthritis?
Cartilage between joints is worn away, causing bones to rub against each other and become damaged. ## Footnote Caused by age.
43
What is rheumatoid arthritis?
An autoimmune disease where the immune system attacks healthy cells by mistake, leading to swelling and inflammation in the joints. ## Footnote Can occur at any age.
44
What is osteoporosis?
A condition where bone density decreases, making bones break more easily. ## Footnote Caused by age or poor diet.
45
Protection, and support

Biolgy (7 decks)

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