5b - Muscular System; Axial Muscles Flashcards
(41 cards)
facial expression muscles - intrinsic or extrinsic
intrinsic
eye muscles - intrinsic or extrinsic
extrinsic
extraocular means
muscles outside of eye
4 rectus eye muscles
dorsal rectus
ventral rectus
medial rectus
lateral rectus
2 oblique eye muscles
dorsal oblique
ventral oblique
oblique eye muscle function
rotate eye around visual axis
retractor bulbi function
pulls eye deeper into socket
retractor bulbi location
back of eye
what is the third eyelid and what is it useful for
mucous membrane useful in checking colour
mastication - opening jaw muscle
digastricus
mastication - closing jaw muscle
masseter
temporal
pterygoids
mastication - masseter and pterygoids location
lateral
mastication - temporal location
dorsal
vertebral column muscles (2)
epaxial and hypaxial
vertebral column epaxial location
lie above transverse process
vertebral column hypaxial location
lie below transverse process
thorax muscles (2)
internal and external intercostal muscles
intercostal means
between ribs
external intercostals function
inspiration (breathing in)
contracts and increases space allowing in more air
internal intercostal function
expiration (breathing out)
muscles relax and air is pushed out
diaphragm separates ______ from ______
thorax from abdomen
diaphragm shape
domed
diaphragm muscles around edges attach to what
vertebrae, sternum and ribs
diaphragm central tendon is
aponeurosis (flat sheet)