Anatomy And Physiology Flashcards Preview

A Level PE > Anatomy And Physiology > Flashcards

Flashcards in Anatomy And Physiology Deck (22):
1

Joint

two or more bones articulating to create movement

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Synovial fluid

Lubricating liquid within the joint cavity
Reduces friction and nourishes articulated cartilage

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Articular cartilage

Smooth tissue which covers the surface of articulating bones
Absorbs shock and allows friction free movement

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Joint capsule

A fibrous sac with inner synovial membranes
Encloses and strengthens the joint secreting synovial fluid

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Bursa

A closed, fluid filled sac found where tendons rub over bones
Reduces friction between tendons and bones

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Sagittal plane of movement

Vertical plane dividing the body left/right

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Frontal plane of movement

Vertical plane dividing the body into anterior/posterior

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Transverse plane of movement

Horizontal plane dividing the body into upper/lower

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Shoulder joint

Ball and socket joint
Humerus and scapula

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Elbow joint

Hinge joint
Humerus, radius and ulna

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Wrist joint

Condyloid joint
Radius, ulna and carpals

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Hip joint

Ball and socket joint
Pelvic girdle and femur

14

Knee joint

Hinge joint
Femur and tibia

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Ankle joint

Hinge joint
Tibia, finial and talus

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Agonist(prime mover)

A muscle responsible for creating movement at a joint

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Antagonist

A muscle that opposes the agonist, providing a resistance coordinated movement

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Fixator

A muscle that stabilises one part of the body while another moves

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Energy

The ability to perform work (measured in joules or calories)

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Isotonic concentric contraction

Muscle shortens to produce tensions

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Isotonic eccentric contraction

Muscle lengthens to produce tension

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Isometric contraction

Muscle contracts without changing length, no movement created

23

Ligaments

Tough band of slightly elastic connective tissue
Connects bone to bone and stabilises joints during movement