Skeletal Muscle Movement

Question 1

what produces the movement?

Answer 1

skeletal muscles by exerting force on tendons
the tendons attach to and pull on bones

Question 2

what is the origin?

Answer 2

the attachment to the stationary bone

Question 3

what is the insertion?

Answer 3

the attachment to the moveable bone

Question 4

what serves as a lever?

Answer 4

bones

Question 5

what serves as a fulcrum?

Answer 5

joints

Question 6

what is the lever acted on?

Answer 6

resistance
effort

Question 7

how many types of levers?

Answer 7

3
1st class (scissors)
2nd class (wheel barrow)
3rd class (tweezers)

Question 8

what are the 3 parts of leverage?

Answer 8

Fulcrum
Load
Effort

Question 9

what are fascicular arrangement correlated with?

Answer 9

the amount of power of a muscle can produce
the range if motion a muscle can produce

Question 10

what are the 3 muscle groups?

Answer 10

Agonist
antagonist
synergist

Question 11

how are muscles named?

Answer 11

location
size
number of origins
appearance
direction of fibers
origin and insertion
muscle action

Question 12

where are muscles of facial expression?

Answer 12

lie within the SubQ layer, originating on the fascia or bones of skull and inserting into the skin

Question 13

what are the muscles called that move the eyeballs?

Answer 13

Extrinsic eye muscles

Question 14

what are the 3 pairs of extrinsic eye muscles?

Answer 14

~Superior and inferior recti
~Lateral and medial recti
~Superior and inferior obliques

Question 15

where is the levator palpebral superioris?

Answer 15

passes the eyeball and inserts into the upper eyelid

Question 16

what does the point of insertion of the elevator palpebral superioris allow?

Answer 16

raise the eyelid

Question 17

where is the tongue attached to?

Answer 17

mandible, styloid process of temporal bone, hyoid bone