action of deltoid muscle
abducts arm, flexes, extends, medically & laterally rotates arm
origin of supraspinatus muscle
supraspinous fossa
insertion of pectoralis minor
corocoid process of scapula
origin of levator scapulae
c1-c4
insertion of latissimus dorsi
intertubercular groove of humerus
does the biceps brachii originate or insert on humerus
neither
origin of trapezius
occipital protuberance, nuchal ligament, spinous process, c7-t12
action of pectoralis major
flexes, adducts & medially rotates arm
insertion of subscapularis
lesser tubercle of humerus
action of triceps brachii
extends & adducts arm, extends forearm
origin of brachialis
anterior distal surface of humerus
muscles that flex arm
deltoid, biceps brachii
antagonists to triceps brachii
biceps brachii & brachiallus
origin of flexor carpi ulnaris
medial epicondyle of humerus & ulna, lepitodum process
anatagonists to spincter muscle
probation teres, pronator quadratus
insertion of flexor digitorum superficialis
middle phalanges of digits 3-5
insertions of extensor carpi ulnaris muscle
metacarpal 5
action of flexor carpi radialis muscles
flexes & abducts gand
what muscle extends both hand and phalanges
extensor digitorum
muscle extends thumb
abductor pollicis longus, extensor pollicis longus & brevis
what side are extensor carpi muscles located on forearm
posterior
three muscles that correspond to the single trapezius in humans
clavotrapezius, acrotrapezius, spinotrapezius
action of epitrochlearis
extends forelimb
which muscle is not human muscle
xiphihumeralis
how does deltoid of cat differ from that of human
cat has three muscles: clavodeltoid, acromiodeltoid, spinodeltoid
more developed in cats muscle
flexor digitorum profondus
hit a hammer with nail use:
triceps brachii
look up at ceiling use:
trapezius
if riding a horse, what muscles would you use to keep your seat out of the saddle as you rode
(8) rectus femoris, vastus lateralis, vastus medialis, gracilis, pectine, adductor brevis, adductor longus, adductor magnus
how does the gluteus medius and gluteus minimus prevent you from toppling over as you walk
stabilizes pelvis, keeps balance, maintains center of gravity
antagonist to biceps femoris
rectus femoris
two muscles that are synergists with biceps femoris
semiteninosis and semimembranous
insertion of all muscles of quadriceps
tibial tuberosity
how does action of the rectus femoris differ from that of the other quad muscles
only quad muscle that flexes thigh
how many adductor muscles are there
5
muscles responsible for thigh flexion
rectus remoras, tensor fasciate latae, iliopsoas, sartorios
origin of hamstring muscles as a group
ischial tuberosity
action of vastus lateralis
extends leg
muscle group located on the anterior part of thigh
quadriceps
is abduction of thigh movement away or toward midline
away
what muscle flexes the lumbar vertebrae as part of its action
iliopsoas
origin of gastrocnemius
condyles on femur
insertion of tibialis anterior in humans
metatarsal 1, cuneiform 1
how does the action of the fibularis longs in humans differ from that of the fibularis tertius
longus- flexes and everts foot
tertius- dorsiflexes foot
action of the extensor hallucis longus
extends hallux, dorsiflexes & inverts foot
the calf is made up of what two major muscles
gastrocnemius and soleus
plantar flexion cocues by what muscles
(7) soleus, fibularis longus, fibularis brevis, gastrocneonius, tibialus posterior, flexor digitorum longus, hallucis longus
what muscle extends toes
extensor digitorum longus
muscle that dorsiflexes foot
tibialus anterior
plantar flexion and eversion of the foot occur by that action of what muscle
fibulas tertius
insertion of soleus
calcaneus by the calcaneal tendon
insertion of the fibularis tertius muscle
dorsum of metacarpals
insertion of the flexor digitorum longus
distal phalanges of digits 2-5
origin of the masseter muscle
zygomatic arch
action of the risorius
abducts corner of mouth
what kind of muscle is the orbicularis oculi or orbicularis oris muscle in terms of action
sphincter muscle
what muscle originates on the temporal fossa
temporalis
two muscles that close the jaw
masseter and temporalis
insertion of the sternocleidomastoid muscle
mastoid process and superior nuchal line
what muscle closes lips
orbicularis oris
insertion of the orbicularis oculi
skin of eyelid
insertion of the temporalis
corned process, mandibular ramus
muscle that closes the eye
orbicularis oculi
action of the sternocleidomastoid
one rotates and extends neck, both flex neck
synergist with the masseter
temporalis
action of the serratus anterior muscle
abduction of the scapula
four muscles that extend the vertebral column
spinalis, longissimus, semispinalis, multifidus
how does the serratus anterior function as an antagonist to the rhomboideus muscles
abducts scapula
R- adducts
how does action of the rectus abdominis differ from that of the other abdominal muscles
flexes vertebral column, compresses abdominal wall
physical relationship of the intercostal muscles to each other
external superficial
internal deep
extension and rotation of the vertebral column occur by what group of muscles
erector spinae
action of the intercostal muscles
elevate and depress ribs
what muscle inserts on the central tendon
diaphram
tendinous intersections are found in what muscle
rectus abdominis
what is the deepest abdominal muscle
transverse abdominis
action of the quadrates lumborum
laterally flexes the vertebral column, depresses rib 12
what two muscles originate on the neck and extend and rotate head
longissimus, spinialis
how do the abdominal muscles in the cat compare with those in the human in terms of relative position
rectus abdominis is anterior instead of vertical in cats