Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
cutaneous trunci
|
thin sheet of skeletal muscle that is just deep to skin and attaches to fascia of trunk
causes skin twitches |
|
|
biceps brachii
|
action: flexes elbow and extends shoulder
origin: scapula insertion: radius |
|
|
triceps brachii
|
antagonist muscle to biceps brachii
action: extends elbow origin: humerus insertion: ulna |
|
|
supraspinatus
|
more cranial muscle that lies on scapular spine
action: extends scapula origin: scapula insertion: proximal humerus |
|
|
infraspinatus
|
lies on the caudal side of scapular spine
action: extends or flexes joint origin: scapula insertion: caudal part of proximal humerus |
|
|
latissimus dorsi
|
caudal to the scapula, broad muscle above ribs
action: allows backward movement, like digging origin: spinous process of thoracic-lumbar vertebrae insertion: medial humerus |
|
|
trapezius
|
big triangular muscle
action: elevates and abducts forelimb origin: cervical-lumbar vertebrae insertion: spine of scapula |
|
|
biceps femoris
|
longest, widest thigh muscle
action: extends hip, stifle, hock origin: ischium insertion: tibia |
|
|
semitendinosis
|
middle thigh muscle behind biceps femoris
action: extends hip, flexes stifle, extends hock origin: ischium insertion: tibia *sciatic nerve is located in this muscle |
|
|
semimembranosis
|
most medial of thigh muscles
action: extends hip origin: ischium insertion: tibia |
|
|
gastrocnemius
|
calf muscle; calcaneon tendon is end of this mucle
action: flexes stifle, extends hock origin: distal femur insertion: calcaneous |
|
|
external abdominal oblique
|
most superficial abdominal muscle
|
|
|
internal abdominal oblique
|
muscle deep to the external abdominal
|
|
|
rectus abdominis
|
muscle that runs longways down the middle of the muscle
|
|
|
transverse abdominis
|
deepest abdominal muscle
|
|
|
linea alba
|
line created by connective tissue sheets (aponeuroses) in middle of abdominal muscles
|
|
|
epaxial muscles
|
muscles associated with the vertebral column
|
|
|
external intracostal muscles
|
sit inbetween ribs on the outside
fibers directed down and backward rotate ribs up and forward |
|
|
internal intracostal muscles
|
lie deep to the external intracostals
rotate the ribs backward and down fibers go down and forward |
|
|
diaphragm
|
dome shaped muscle between the thoracic and abdominal cavities
|
|
|
functions of muscular system
|
movement, posture, heat production
|
|
|
types of muscle
|
skeletal, smooth, cardiac
|
|
|
antagonist
|
move opposite (biceps and triceps = flexion and extension)
|
|
|
synergist
|
move the same
|
|
|
flexion
|
contracting movement that makes angle between two bones smaller
|
|
|
extension
|
movement that makes joint angles larger
|
|
|
bursae
|
fluid filled cushions that lie between tendons and bones
|
|
|
endomysium
|
connective tissue between individual muscle fibers
|
|
|
perimysium
|
sheath surrounding bundles of muscle fibers
|
|
|
epimysium
|
connective tissue that surrounds entire muscle
|
