muscles - the basics Flashcards
describe muscle
a band or bundle of fibrous tissue that has the ability to contract producing movement in or maintaining the position of parts of the body
describe tendon
can’t repair themselves
a flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone
describe ligaments
can’t repair itself
a short band of tough flexible fibrous connective tissue - connecting two bones or cartilage or holds together a joint
describe cartilage
acts as a buffer stops joints rubbling together - firm flexible connective tissue covering bones
muscles are named by terms which refer to?
direction of fibres location in the body their size their shape their origin/insertion their action
which direction is rectus?
fibres run parallel to the midline
which direction is transverse?
fibres run at right angles to the midline
which direction is oblique?
fibres run diagonally to the midline
what location is the pectoralis
chest
what location is the lumborum
lower back
what location is the tibialis
tibia bone
which term relating to size is the maximus?
largest
which term relating to size is medius
middle sized
which term relating to size is minumus?
smallest
which term relating to size is longus?
longest
which term relating to size is brevis?
short
which term relating to number of origins of muscle is biceps?
twp
which term relating to number of origins of muscle is triceps?
three
which term relating to number of origins of muscle is quadraceps?
four
which term relating to shape is deltoid?
triangular
which term relating to shape is trapezius?
trapezoid - lop sided triangle
which term relating to shape is serratus?
like teeth of a saw
which term relating to shape is rhomboid?
diamond
which term relates to the site of origin/insertion of muscle in the coccygeus?
coccyx
which term relates to the site of origin/insertion of muscle in the sternocleidomastoid?
arises from the sternum & clavicle and inserts into mastoid process
flexor
decreases the angle at a joint
extensor
increases the angle at a joint
abductor
moves a bone away from the midline
adductor
moves a bone closer to the midline
levator
upward movement
depressor
downward movement
supinator
turns palm upward or anteriorly
pronator
turns the palm down or posteriorly
sphincter
decreases size of opening
tensor
makes a body part more rigid
rotator
moves a bone around its longitutudinal axix
