SHS 300 Midterm UIUC complete

includes muscles shit

A

notch

B

superior cornu

C

lamina

D

facets

E

prominence

F

angle

G

inferior Cornu

A

Anterior Arch

B

Facet for thyroid Cartilage

C

lamina

D

facet for arytenoid

A

corniculate cartilage

B

apex

C

vocal process

D

facets

E

muscular process

A

Body

B

lingual surface

C

laryngeal surface

D

petiolus

A

lesser cornua

B

body

C

greater cornua

Pectoralis Major Origin

upper costal cartilage, sternum, clavicle

Pectoralis Major Insert

humerus

Pectoralis Major Function

elevates sternum and ribs

Pectoralis Minor Origin

2-5 ribs

Pectoralis Minor Insert

front surface of scapula

Pectoralis Minor Function

elevates 2-5 ribs

serratus anterior Origin

outer surface ribs

serratus anterior Insert

front of the scapula

serratus anterior Function

elevates upper ribs for air

Serratus Posterior Inferior Origin

lower thoracic and upper lumbar

Serratus Posterior Inferior insert

lower 4 ribs

Serratus Posterior Inferior function

depresses lower ribs for exhale

Serratus Posterior Superior origin

C7, T1-4

Serratus Posterior Superior insert

ribs 2-5

Serratus Posterior Superior function

elevates 2-5

Scalene anterior origin

C3-6

Scalene medius origin

C2-7

Scalene Posterior origin

C5-7

Scalene anterior insert

inner top of rib 1

Scalene medius insert

1st rib

Scalene posterior insert

outer 2nd rib

Scalene function

elevates connected ribs

Sternocleidomastoid origin

sternum and clavicle

Sternocleidomastoid insert

mastoid

Sternocleidomastoid function

elevates sternum, clavicle, and ribs

external intercostals function

elevates ribs and stiffens

internal intercostals function

depresses ribs and stiffens

transversus thoracis origin

inner surface lower sternum and 4-5 costal

transversus thoracis insert

ribs 2-6

transversus thoracis function

depresses 2-6 ribs

Lats origin

thoracic, sacral, lower 3-4 ribs

Lats insert

humerus

Lats function

muscle depresses, fibers can elevate ribs

lateral iliocostalis cervicis origin

surface of 3-6 ribs

lateral iliocostalis cervicis insert

4-6 C

lateral iliocostalis cervicis function

elevates 3-6 ribs

lateral iliocostalis lumborum origin

lumbodorsal fascia, L V, back surface coxal

lateral iliocostalis lumborum insert

lower edges of lower 6 ribs

lateral iliocostalis lumborum function

depresses lower 6 ribs

lateral iliocostalis thoracis origin

upper edges lower 6 ribs

lateral iliocostalis thoracis insert

lower edges of upper 6 ribs

lateral iliocostalis thoracis function

stabilizes back of rib cage wall

Quadratus Lumborum origin

top of coxal

Quadratus Lumborum insert

first 4 L and lowest rib

Quadratus Lumborum function

depresses

Subcostals origin

lower portion of vertebral column on inner surface

Subcostals insert

inner surfaces of ribs

Subcostals function

depresses

Diaphragm origin

bottom of sternum, lower 6 ribs, first 3-4 L

Diaphragm insert

central tendon

Diaphragm function

enlarge thorax

rectus abdominis origin

from edge of coxal

rectus abdominis insert

outer surface of 5-7 costal cartilages and lower sternum

rectus abdominis function

depresses lower and sternum

external oblique origin

upper surface of coxal and abdominal aponeurosis

external oblique insert

lower 8 ribs

external oblique function

depresses lower and forces inward

internal oblique origin

upper surface of coxal and lumbodorsal; fascia

internal oblique insert

ab. aponeurosis and lower costal cartilages

internal oblique function

depresses and forces inward

transversus abdominis origin

upper surface of coxal, lumbodorsal fascia

transversus abdominis insert

ab. aponeurosis

transversus abdominis function

forces inward

Thyroarytenoid Origin

inside surface of thyroid cartilage

Thyroarytenoid insert

ipsilateral arytenoid cartilage

Thyroarytenoid function

bulk of vocal folds; contraction reduced distance between thyroid and arytenoid cartilages to shorten vocal fold and/or increase internal tension

posterior cricoarytenoid Origin

back surface of cricoid cartilage

posterior cricoarytenoid Insert

upper and back surface of muscular process or arytenoid cartilage

posterior cricoarytenoid Function

contraction rock arytenoid cartilage away from mildline and slide forward adn backward; abduct vocal folds

lateral cricoarytenoid Origin

upper rim of cricoid cartilage

lateral cricoarytenoid Insert

muscular process and front of arytenoid cartilage

lateral cricoarytenoid Function

Contraction rocks arytenoid cartilage toward midline and slide arytenoid forward and toward the side; vocal folds adduct

transverse arytenoid Origin

back surface of the arytenoid

transverse arytenoid Insert

same location on the other arytenoid

transverse arytenoid Function

contractions pulls arytenoid cartilage toward each other

oblique arytenoid Origin

back and side surface and the muscular process of the arytenoid

oblique arytenoid insert

apex of the opposite arytenoid; some fibers extend upward and become aryepiglottic muscles