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57 Cards in this Set

  • Front
  • Back
proteins in cardiac muscle
actin, myosin, troponin, tropomyosin
intercalated disc
junction of two cardiac muscle fibers
what speeds/slows heart contractions?
sympathetic/ parasympathetic nerve impulses
smooth muscle found where?
walls of gastrointestinal tract
blood vessels
orbicularis oculi (origin & insertion)
maxilla & frontal bone
around eye
orbicularis oris
maxilla, mandible
lips
masseter
zygomatic, maxilla
mandible
sternocleidomastoid
sternum, clavicle
temporal, occipital (mastoid process)
platysma
fascia of chest
lower mandible
pectoralis major
clavicle, sternum, cartilage of ribs
humerus
pectoralis minor
sternal ends of upper ribs
scapula
rectus abdominus
pubic symphysis
sternum (xiphoid process) & ribs
external oblique
lower ribs
pelvic bones
trapezius
occipital bone; spines of cervical & thoracic vertebrae
clavicle, scapula
latissimus dorsi
spinous processes of S,L,T vert.; ilium
humerus
deltoid
scapula, clavicle
humerus
biceps brachii
scapula
radius
triceps brachii
humerus, scapula
ulna
gluteus maximus
sacrum, coccyx, ilium
femur, fascia
biceps femoris
ischium, femur
fibula, tibia
rectus femoris
ilium
patella (tibia)
gastrocnemius
femur
calcaneus
diaphragm
sternum (xiphoid process), lower ribs, lumbar vertebrae
central tendon
pronator quadratus
distal end of ulna
distal end of radius
extensor digitorum communis
humerus
phalanges
flexor digitorum profundus
ulna
phalanges
sartorius
ilium
tibia
soleus
fibula, tibia
calcaneus
supraspinatus
infraspinatus
teres minor
subscapularis
coracobrachialis
teres major
(Hint: all the same!)
scapula
humerus
traits of smooth muscle
unbranched, uninucleated, involuntary, contain atin & myosin, no T-tubules
muscle cells contain ______, which have ______
myofibrils
myofilaments
view diagram on page 111.
NOW!
H band contains which type of myofilament?
myosin
I band contains which type of myofilament?
actin
A band contains which type(s) of myofilament?
actin AND myosin
what masks the binding sites on actin when a muscle cell is resting?
tropomyosin
where are Ca++ ions stored in resting muscle cells?
sarcoplasmic reticulum
in cardiac muscle, from where does calcium enter the sarcoplasm, in addition to the Ca from the sarc. retic.?
from the extracellular fluid, through channels in the T-tubules
in the myofilament system, what does calcium bind to?
troponin
the shape of which molecule changes when calcium binds to troponin?
tropomyosin
where does ATP bind during muscle contraction?
head of myosin
what are sources of ATP?
glycolysis & oxidative phosphorylation

some from ADP & creatine phosphate
flexor/tensor
decrease/increase angle @ a joint
abductor/adductor
moves a bone away from/ toward the midline of the body
levator/depressor
upward/downward movement
supinator/pronator
palm up/down
tensor
make muscle more rigid
rotator
move bone around longitudinal axis
primary muscle
prime mover/agonist
relaxing muscle
antagonist
helper muscles
synergists
first class levers
fulcrum in middle
second class lever
out force in middle
third class lever
in force in middle
example of first class lever
extension of forearm by triceps
lifting of head
example of third class lever
flexion of forearm by biceps brachii
calculations involving levers (formula)
H = (L/I) x S