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82 Cards in this Set

  • Front
  • Back
brachioradialis
Origin:
middle of humerus
Insertion:
distal end of radius
Action:
rotates radius to supine position
clavobrachialis
Origin:
clavicle
Insertion:
proximal end of ulna
Action:
extends the forelimb
triceps brachii
Origin:
scapula and humerus
Insertion:
olecranon
Action:
extends forelimb
extensor carpi ulnaris
Origin:
lateral epicondyle of humerus
Insertion:
metacarpal
Action:
extends wrist (carpal joint)
extensor carpi radialis
Origin:
lateral surface of humerus
Insertion:
metacarpal
Action:
extends wrist
extensor digitorum communis
Origin:
lateral surface of humerus
Insertion:
phalanges
Action:
extends digits of manus
extensor digitorum lateralis
Origin:
lateral surface of the humerus
Insertion:
phalanges
Action:
extends digits of manus
flexor carpi radialis
Origin:
medial epicondyle of humerus
Insertion:
metacarpals
Action:
flexes wrist
flexor carpi ulnaris
Origin:
medial epicondyle of humerus and olecranon
Insertion:
carpals
Action:
flexes wrist
palmaris longus
Origin:
medial epicondyle of humerus
Insertion:
proximal phalanges of digits
Action:
flexes wrist
pronator teres
Origin:
medial epicondyle of humerus
Insertion:
middle of radius
Action:
rotates radius to prone
epitrochlearis
Origin:
lateral border of lateral dorsi and lumbar vertebrae
Insertion:
olecranon process of ulna
Action:
extends lower forelimb
latissimus dorsi
Origin:
spinous process of thoracic
Insertion:
medial humerus
Action:
pulls forelimb posteriorly and dorsally
pectoantebrachialis
Origin:
manubrium
Insertion:
superficial fascia of antrebrachium (near elbow)
Action:
adducts forelimb
pectoralis major
Origin:
sternum
Insertion:
proximal 2/3 of humerus
Action:
adducts forelimb
pectoralis minor
Origin:
sternum
Insertion:
proximal 1/2 of humerus
Action:
adducts forelimb
xiphihumeralis
Origin:
sternum
Insertion:
proximal humerus
Action:
adducts forelimb
external oblique
Origin:
lumbodorsal fascia and posterior ribs
Insertion:
linea alba
Action:
compresses abdomen and flexes trunk
internal oblique
Origin:
lumbodorsal fascia and iliac crest
Insertion:
linea alba
Action:
compresses abdomen and flexes trunk
linea alba
a fibrous structure that runs down the midline of the abdomen
manubrium
top part of the sternum
rectus abdominis
Origin:
pubic symphysis
Insertion:
sternum and costal cartilages
Action:
compress abdomen and flex trunk
transverse abdominis
Origin:
ribs, lumbar vertebrae, ilium
Insertion:
linea alba
Action:
compresses abdomen and flexes trunk
sternomastoid
Origin:
manubrium
Insertion:
mastoid process
Action:
rotates head
digastric
Origin:
mastoid process
Insertion:
dentary (inferior border)
Action:
depresses mandible
masseter
Origin:
zygomatic arch
Insertion:
dentary (lateral surface)
Action:
elevates mandible
temporal
Origin:
lateral surface of skull posterior to orbit
Insertion:
coronoid process of dentary
Action:
elevates mandible
mylohyoid
Origin:
medial surface of the dentary bones
Insertion:
medial raphe
Action:
elevates floor of mouth; draw hyoid anterior
sternohyoid
Origin:
1st costal cartilage
Insertion:
hyoid
Action:
draws hyoid posteriorly
acromiodeltoid
Origin:
acromion
Insertion:
proximal end of humerus
Action:
raise and rotate humerus
spinodeltoid
Origin:
scapula
Insertion:
proximal end of humerus
Action:
raise and rotate humerus
acromiotrapezius
Origin:
spinous process of thoracic and cervical vertebrae
Insertion:
spine of scapula
Action:
stabilizes scapula
levator scapulae ventralis
Origin:
occipital and atlas
Insertion:
scapula
Action:
elevates scapula
spinotrapezius
Origin:
spinous process of thoracic vertebrae
Insertion:
scapula
Action:
moves scapula caudad (towards tail region)
clavotrapezius
Origin:
skull
Insertion:
clavicle
Action:
extends forelimb
adductor femoris
Origin:
pubis
Insertion:
shaft of femur
Action:
adducts femur
adductor longus
Origin:
pubis
Insertion:
shaft of femur
Action:
adducts femur
gracilis
Origin:
ischium; pubic symphysis
Insertion:
tibia
Action:
adducts femur and moves leg posteriorly
pectineus
Origin:
pubis
Insertion:
proximal end of femur
Action:
adducts femur
gluteus maximus
Origin:
transverse process of last sacral and 1st caudal
Insertion:
greater trochanter
Action:
abducts femur
gluteus medius
Origin:
ilium and transverse process of last sacral and first caudal
Insertion:
greater trochanter
Action:
abducts femur
caudofemoralis
Origin:
transverse process of caudal vertebrae
Insertion:
patella
Action:
abducts femur
biceps femoris
Origin:
tuberosity of ischium
Insertion:
patella and tibia
Action:
abducts femur and flexes tibia
sartorius
Origin:
crest of ilium
Insertion:
tibia and patella
Action:
abducts and rotates femur
gastrocnemius
Origin:
distal end of femur
Insertion:
calcaneus
Action:
extends pes
peroneus longus
Origin:
proximal fibula
Insertion:
metatarsals
Action:
extends pes
soleus
Origin:
fibula
Insertion:
calcaneus
Action:
extends pes
tibialis anterior
Origin:
proximal ends of tibia and fibula
Insertion:
1st metatarsal
Action:
flexes pes
iliopsoas
Origin:
lumbar vertebrae and ilium
Insertion:
lesser trochanter
Action:
draws thight forward
tensor fascia latae
Origin:
crest of ilium
Insertion:
fascia latae
Action:
extends lower leg
semitendinosus
Origin:
ischium
Insertion:
medial side of tibia
Action:
flexes lower leg
extensor digitorum longus
Origin:
lateral epicondyle of femur
Insertion:
middle and distal phalanges
Action:
extends digits of pes
flexor digitorum longus
Origin:
proximal end of tibia and fibula
Insertion:
base of terminal phalanges
Action:
flexes digits of pes
belly
fleshy central portion of muscles consisting of contracile muscle fibers
tendon
anchors muscle; lesser cross-sectional area, allowing for more attachments @ one place
aponeurosis
broad, flat sheet of CT; anchors with more surface area
origin
more stable attachment of muscle; usually nearer to the sagittal plane (not true in intercostal muscles)
insertion
attachment site that moves when muscle flexes
muscles attach to...
-bones, cartilage, ligaments
-fascia covering other muscles
-mucous membrane (tongue)
-skin (facial muscles)
-circular bands (sphincters)
muscles act only by ... and almost always occur in ... ...
-contraction
-antagonistic groups
extensors
muscles which straighten joints
flexors
muscles which close/bend joints
adductors
muscles which move appendages toward median sagittal plane
abductors
muscles which move appendages away from median sagittal plane
pronators
muscles which turn the dorsal surface of a limb anteriorly (prone position)
supinators
muscles which turn the ventral surface of a limb anteriorly
levators
muscles which raise structures
(antagonistic group: depressors)
depressors
muscles which lower structures
(antagonistic group: levators)
sphinctors
muscles which close openings
(antagonistic group: dilators)
dilators
muscles which open openings
(antagonistic group: sphinctors)
fascia
white fibrous membrane consisting of elastic fibers and fat
4 muscles which extend forelimb
clavobrachialis, long head of triceps, lateral head of triceps, clavotrapezius
2 muscles which extend wrist
extensor carpi ulnaris, extensor carpi radialis
2 muscles which extend digits of manus
extensor digitorum communis, extensor digitorum lateralis
3 muscles which flex wrist
flexor carpi radialis, flexor carpi ulnaris, palmaris longus
4 muscles which adduct forelimb
pectoantebrachialis, pectoralis major, pectoralis minor, xiphihumeralis
4 muscles which compress abdomen and flex trunk
external oblique, internal oblique, rectus abdominis, transverse abdominis
2 muscles which elevate mandible
masseter, temporal
2 muscles which raise and rotate humerus
acromodeltoid, spinodeltoid
4 muscles which adduct femur
adductor femoris, adductor longus, gracilis, pectineus
5 muscles which abduct femur
gluteus maximus, gluteus medius, caudofemoralis, biceps femoris, sartorius
3 muscles which extend pes
gastrocnemius, peroneus longus, soleus