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YEAR8 BIOLOGY TERM1 > 6.10 MUSCLES & MOVEMENT > Flashcards

6.10 MUSCLES & MOVEMENT Flashcards

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1
Q

What are the three types of joints?

A
  1. Ball-and-socket joints
  2. Hinge joints
  3. Fused joints
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2
Q

What is the function of ball-and-socket joints?

A

Give round movements

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3
Q

Where are ball-and-socket joints found?

A
  1. Hips
  2. Shoulders
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4
Q

What is the function of hinge joints?

A

Allow forward and backward movement

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5
Q

Where are hinge joints found?

A
  1. Elbow
  2. Knee
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6
Q

Do fused joints have movement?

A

No

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7
Q

Where are fused joints found?

A

Skull

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8
Q

What are the important structures in joints?

A
  1. Ligaments
  2. Cartilage
  3. Synovial fluid
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9
Q

What is the function of ligaments?

A

Holds the bones in joints in place

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10
Q

What are the characteristics of ligaments?

A

Slightly stretchy but very strong

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11
Q

What is the function of cartilage?

A

Cushions the bones

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12
Q

What are the characteristics of cartilages?

A

A rubbery layer, covering the end of bones in joints

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13
Q

What is the function of synovial fluid?

A

Reduces friction

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14
Q

What are the characteristics of synovial fluid?

A

A slippery fluid to lubricate the joint

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15
Q

How do joints move?

A
  1. Tendons
  2. Antagonistic muscles
  3. Bending arm
  4. Straight arm
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16
Q

What is the function of tendons?

A

Link muscle and bone

17
Q

What are the characteristics of tendons?

A

Strong and do not stretch

18
Q

What are Antagonistic muscles?

A

At least two muscles working opposite to each other

19
Q

How do biceps work in a bending arm?

A

biceps contract - shorter - thicker - pulling the lower arms up

20
Q

How do triceps work in a bending arm?

A

triceps relax - stretched thin - lower arms bend upward

21
Q

How do triceps work in a straight arm?

A

triceps contract - thick - pulling the lower arms down

22
Q

How do biceps work in a straight arm?

A

biceps relax - thin - lower arms bend downwards

23
Q

Do your biceps or triceps relax in a bending arm?

A

Triceps

24
Q

Do you biceps or triceps relax in a straight arm?

A

Biceps

YEAR8 BIOLOGY TERM1 (27 decks)

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