Muscular System Flashcards
are types of tissue that is concerned on movement.
muscles
are involuntary in function
smooth muscles
are those muscles attached to the skeleton and the voluntary, meaning they will only more when told to do so.
skeletal muscles
are located within the heart and are of two types:
cardiac muscles
is the main bulk of the component matrix of the heart.
ordinary cardiac muscle
are the impulse conducting system of the heart
purkinge fibers
muscles attached to the maxilla mandible and nasal and incisive bones
facial muscles
inserted into the mouth
platisma
runs from the zygomatic bone to the angle of the mouth
zygomaticos
together with zygomaticus
caninus
with platisma, zygomaticus, caninus
buccinators
from the nose to the upper lip
levator naso- labialis
runs from the lower lip to the mandible
levator labii mandibularis
inserted on the mandible near the synphysis.
mentalis
there are seven extrinsic muscles of the eyeball attached to sclera runs along the length of the eye. 4 straight, 2 oblique and one retractor.
eye muscle
straight muscles
- lateral
- medial
- dorsal
- ventral
oblique
- dorsal
- ventral
responsible in rising and lowering the eyebrows.
retractor bulbii
very powerful muscle. interlacing with each other the styloglossus, myoglossus and gehioglossus.
tongue muscles
from the stylohyoid to the tongue
styloglossus
within the tongue transversing the tongue.
myoglossus
from the gniohyoid to the tongue
gehioglossus
muscles responsible for the breaking down of food within the mouth.
masticatory muscles
attached to the masseteric fossa
masseter
inserted into the temporal bone
temporalis
attached in terigoid bone
pterygoideus medialis and lateralis
it has two portion
digatricus
responsible in closing the mouth
cranial bellies
responsible in opening the mouth
caudal bellies
these are three muscles evident when the ear moves
ear muscles
runs from the base of the ear to the neck region, the muscles covers the parotid lymph nodes and salivary gland
parotid auricularis
runs from the frontal bone to the cranial part of the ear.
frontoscutularis
runs from the medial surface of the left to the right ear.
interscutularis
muscles attached to the pharynx, they all aid in swallowing the food.
pharyngeal muscles
is a muscle of the head and neck, and one of the inner longitudinal muscles of the pharynx
palatopharyngeus
is a long, slender and tapered longitudinal pharyngeal muscle that runs between the styloid process of the temporal bone and the pharynx and functions during the pharyngeal phase of swallowing.
stylopharyngeus
the superior muscle arising from the thyroid cartilage and together with cricopharyngeus, constitute the inferior pharyngeal constrictor.
thyropharyngeus
is a circular muscle around the top of the food pipe, the tubular organ that passes food from the mouth into the stomach.
cricopharyngeus
is a broad, thin, ribbon-like muscle in the head that tenses the soft palate.
tensur veli palatine
they are muscle attached to the larynx which controls the air that enters the lungs.
laryngeal muscles
is innervated by the cranial laryngeal nerve, a branch of the vagus nerve.
cricothyroideus
muscle that connect the cricoid cartilage and arytenoid cartilage.
cricoartyroideus
is a single muscle, filling up the posterior concave surfaces of the arytenoid cartilages.
arytenoideus
a small bundle of fibers of the thyroarytenoid that extends along the wall of the ventricle from the arytenoid cartilage to the epiglottis.
ventricularis
is a broad, thin, ribbon-like muscle in the head that tenses the soft palate.
tensur veli palatine
is a small, quadrilateral muscle found in the anterior triangle of the neck.
thyrohyoideus
classified into intrinsic and extrinsic muscle
thoracic limb muscles
are attached to both the axial skeleton and the thoracic limbs
extrinsic muscles
are solely attached to the thoracic limbs
intrinsic muscles
is a long and flat, complex of muscles that extends from the lower half of the humeral shaft to the head and neck.
brachiocephalicus
3 parts of brachiocephalicus muscles;
- cervicalis
- brachialis
- occipitalis
a short muscle that traverse the shoulder.
omotransversarius
it has two portions the transvers and descending
superficial pectoral
more caudal than the superficial. they are both called chest muscle.
deep pectoral
is a powerful muscle which act as a sling between the thoracic wall and the limb
seratus ventralis muscle
a fan shape muscle arising from the scapular spine and fun out into cervical and thoracic parts
trapegeus
inserted onto the dorso-medial border of the scapula
rhomboidues
3 portions of rhomboideus;
a. cervical
b. thoracic
c. lumbar
muscles divided into shoulder, arm, and fore arm muscles
intrinsic muscles of thoracic limbs
intrinsic muscles of thoracic limbs (shoulder) lateral
a. deltoideus
b. supraspinatus
c. infraspinatus
d. teres minor
intrinsic muscles of thoracic limbs (shoulder) medial
a. teres major
b. subscapularis
c. coracobrachialis
craniolateral
i. bicepsbrachii
ii. brachialis
caudo-medial
i. tricepsbrachii
ii. tensur fasciae antebrachii
iii. carpi radialis
iv. interosseous in between muscles.
these muscles are concerned on respiration. they are attached to the chest or rib cage
thoracic wall muscles
thoracic wall muscles
a. external intercostal
b. internal intercostal
c. serratus dorsalis
d. serratus ventralis
e. rectus thoracis
f. rectus transverssus
g. spleniud
h. scalenus
there are four abdominal wall muscles that met at the center
abdominal wall muscle
the rectus abdominal muscle;
a. external abdominal oblique
b. internal abdominal oblique
c. transversus abdominis
d. rectus abdominis
pelvic limb muscle (hip)
a. gluteals
b. sartorius
c. tensor fascial latae
pelvic limb muscle (thigh muscle) cranialateral
° bicepsfemoris
° semimembanosus
° semitendinosus
pelvic limb muscle (thigh muscle) caudomedial
° gracilis
° pectineus
° addector
leg muscles (craniolateral)
° tibialis cranialis
° long digital extensor
° perinous longus
leg muscles (caudomedial)
i. gastrocnesius
ii. superficial digital flexor
iii. deep digital flexor
iv. tibialis caudalis
v. interasseous muscles
sublimbar muscles
a. lliacus
b. psoas minor and major
