Thorax Muscles
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42 Terms
What is the origin of the external oblique
external surface of ribs 5-12
What is the insertion of the external oblique
iliac crest
What is the action of the external oblique
lateral flexion and rotation of the spine
What is the origin of the internal oblique
iliac crest
What is the insertion of the internal oblique
ribs 10-12
What is the action of the internal oblique
lateral flexion and rotation of spine
What is the origin of the transversus abdominis
costal cartilages of ribs 7-12
What is the insertion of transversus abdominis
linea alba and pubic crest
What is the action of the transversus abdominis
structural support of abdomen
What is the origin of the iliocostalis
Thoracic and lumbar vertebrae
What is the insertion of the iliocostalis
Costal angle of ribs 1-6, cervical vertebrae
What is the action of the iliocostalis
Lateral flexion and extension of vertebral column
What is the origin of the spinalis capitis
spinous process of Cervical 7-Thoracic 1 vertebrae
What is the insertion of the spinalis capitis
superior and inferior nuchal lines
What is the action of the spinalis capitis
extension and laterally flexes neck
What is the origin of the longissimus
transverse processes of thoracic and lumbar vertebrae
What is the insertion of the longissimus
lower ribs and transverse process of C2-T12
What is the action of the longissimus
lateral flexion of vertebral column
What is the rectus abdominis called in the fish
Hypaxial group
What is the origin of the rectus abdominis
pubic crest and pubic symphysis
What is the insertion of the rectus abdominis
xiphoid process of sternum
What is the action of the rectus abdominis
flexes the trunk
What is the external oblique known as in fish
hypaxial group
What is the transversus abdominis known as in fish
hypaxial group
What is the transverse abdominis known as in amphibians
internal oblique
What is the iliocostalis known as in fish
expaxial group
What is the spinalis capitis known as in amphibians
spinalis
What is the spinalis capitis known as in fish
Expaxial group
What is the longissimus known as in amphibians
longissimus
What is the longissimus known as in fish
epaxial group
What is the clavotrapezius known as in reptiles, amphibians, fish
trapezius, protractor pectoralis, adductor pectoralis
What is the acromiotrapezius known as in reptiles, amphibians, fish
trapezius, protractor pectoralis, adductor pectoralis
What is the spinotrapezius known as in reptiles, amphibians, fish
trapezius, protractor pectoralis, adductor pectoralis
What is the name of the sternoclidomastoid in reptiles, amphibians, fish
sternocleidomastoid, protractor pectoralis, adductor pectoralis
What is the name of the rhomboideus in reptiles, amphibians, and fish
serratus anterior, serratus anterior, epaxial group
What is the teres major known as in reptiles, amphibians, and fish
subcorocoscapularis, subcorocoscapularis, expaxial group
What is the subscapularis known as in reptiles, amphibians, and fish
subcoroscapularis, subcoroscapularis, expaxial group
What is the deltoideus known as in reptiles, fish, and amphibians
deltoideus, deltoideus, expaxial group
What is the triceps bracii known as in reptiles, amphibians, and fish
triceps, triceps, adductor
What is the origin of the forearm extensors
posterior radius and ulna
What is the insertion of the forearm extensors
carpals
What is the action of the forearm extensors
to extend