func anat key terms

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what are the 3 functions of the skeleton
movement, support, protection
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what are the 3 addition, physiological roles of the skeleton
calcium regulation, endocrine regulation, RBC production
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what is a first class lever system
force and resistance act in the same direction either side of a pivot
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what is a second class lever system
force acts at the end of a lever, with resistance between force and the pivot
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what is a third class lever system (most common type)
resistance acts at the end of a lever, with force acting between resistance and the pivot
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what percentage of bone is is organic (type 1 collage)
35
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what is the mineral making up the inorganic component of bone
hyrdropoxyapatite
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what is a diaphysis (long bones)
the shaft
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what are the 2 ends of long bones called
epiphyses
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what is the metaphysis
between the epiphyses and diaphysis, where the growth plate resides
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what type of bone is in the epiphyses
spongy
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what is another word for spongy bone
cancellous
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what is another word for compact bone
cortical
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what type of bone is thin and curved, give an example and its function
flat, sternum, muscle attachment and protection
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what type of bone is the vertebra, what is its function
irregular, to protect the internal organs from compression
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what is a sesamoid bone, give an example
where a bone forms in a tendon, patella
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what is a cube shaped bone, give an example and is function
short, metatarsals, to give limited motion
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what is THE FUNCTION OF A LONG BONE
lever
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a round protrusion at the end of a long bone, often at a joint
condyle
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trochanter
large protrusion, only on the femur
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what cell is bone mineralisation (hypertrophy) caused by
osteoblasts
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what are the 2 joint functions
to facilitate motion between bones and transmit force from one bone to another
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what are the 3 different joint types
synarthroses, amphiarthroses, diarthroses
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what is a synarthrose
shock absorbing joint that doesn't move e.g. skull sutures
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what is a amphiarthrose
shock absorbing joint that allows some movement e.g. vertebrae
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what are the 6 diarthrotic joints
saddle, pivot, hinge, condyloid, B and S, gliding
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give 3 things joint stability is provided by
joint shape, arrangement of connective tissues and arrangement of muscles and ligaments
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what are the 3 muscle properties
extensibility, elasticity and can provide force
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what is the tendinous tissue that runs through a muscle
aponeurosis
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muscle roles: agonist
acceleration of a body segment
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antagonist
deceleration of a body segment
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stabiliser
stabilise a body segment against another force (isometric)
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neutraliser
acts to eliminate unwanted action caused by an agonist e.g. rotation of wrist when bicep curling
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Card 2

Front

what are the 3 addition, physiological roles of the skeleton

Back

calcium regulation, endocrine regulation, RBC production

Card 3

Front

what is a first class lever system

Back

Preview of the front of card 3

Card 4

Front

what is a second class lever system

Back

Preview of the front of card 4

Card 5

Front

what is a third class lever system (most common type)

Back

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