4250 Anatomy Quiz 1

Front 1

PRIMARY OF THORAX

Back 1

Diaphragm

Front 2

ACCESSORY OF THORAX

Back 2

ANTERIOR:
external intercostal,
intercondral portion, internal intercostal
POSTERIOR:
levatores costarum (brevis and longis)
Serratus posterior superior

Front 3

MUSCLES OF NECK

Back 3

Sternocleidomastoid (superficial neck)
Scalenus (anterior, middle, posterior)
Trapezius

Front 4

MUSCLES OF THORAX, BACK, AND UPPER LIMB

Back 4

-Pectoralis major
-Pectoralis minor
-Serratus anterior
-Subclavius
-Levator scapulae
-Rhomboideus major
-Rhomboideus minor

Front 5

Muscle: Diaphragm, Sternal head

Origin:

Insertion:

Function:

Back 5

origin= xiphoid process of sternum

insertion= central tendon

function= depresses central tendon of diaphragm; enlarges vertical dimension of thorax; distends abdomen

Front 6

Muscle: Diaphragm, Costal head

Origin:

Insertion:

Function:

Back 6

Origin=Inferior margin of ribs 7-12

Insertion= central tendon

Function= depresses central tendon of diaphragm; enlarges vertical dimension of thorax; distends abdomen

Front 7

Muscle:Diaphragm, Vertebral head

Origin:

Insertion:

Function:

Back 7

Origin= Corpus of L1, transverse processes of L1-L5

Insertion= central tendon

Function= depresses central tendon of diaphragm; enlarges vertical dimension of thorax; distends abdomen

Front 8

Muscle:External intercostal muscles

Origin:

Insertion:

Function:

Back 8

Origin= Inferior surface of ribs 1-11

Insertion= Upper surface of rib immediately below

Function= elevate rib

Front 9

Muscle: Internal intercostal muscles, interchondral portion

Origin:

Insertion:

Function:

Back 9

Origin= Inferior margin of ribs 1-11

Insertion= Superior surface of the rib below

Function= elevate ribs 1-11

Front 10

Muscle:Levator costarum, longis

Origin:

Insertion:

Function:

Back 10

Origin= Transverse processes of T7-T10

Insertion= Bypass the rib below the point of origin, inserting into the next rib

Fuction= elevate ribs 9-12

Front 11

Muscle: Levator costarum, brevis

Origin:

Insertion:

Function:

Back 11

Origin= Transverse processes of vertebrae C7-T11

Insertion= Tubercle of the rib below

Fuction= elevate ribs 1-12

Front 12

Muscle: Serratus posterior superior

Origin:

Insertion:

Function:

Back 12

Origin= Spinous proceses of C7 and T1-13

Insertion= Just beyond the angles of ribs 2-5

Fuction= elevate ribs 2-5

Front 13

Muscle: Sternocleidomastoid (sternomastoid)

Origin:

Insertion:

Function:

Back 13

Origin= Mastoid process of temporal bone

Insertion= Sternal head: superior manubrium sterni
Clavical head: superior surface of clavicle

Fuction= elevates sternum and, by association, rib cage

Front 14

Muscle: Scalenus anterior

Origin:

Insertion:

Function:

Back 14

Origin= Transverse processes of vertebrae C3-C6

Insertion= Superior surface of rib 1

Fuction= elevates rib 1

Front 15

Muscle: Scalenus posterior

Origin:

Insertion:

Function:

Back 15

Origin= Transverse processes of C5-C7

Inserton= second rib

Function= elevates rib 2

Front 16

Muscle: Pectoralis major

Origin:

Insertion:

Function:

Back 16

Origin= Sternal head: lengh of sternum at costal cartilages
Clavicular head: anterior clavicle

Insertion= Greater tubercle of humerus

Function= elevate sternum, and subsequently increases transverse dimension of rib cage

Front 17

Muscle: Pectoralis minor

Origin:

Insertion:

Function:

Back 17

Origin= Anterior surface of ribs 2-5 near chondral margin

Insertion= Coracoid process of scapula

Function= Increases transverse dimension of rib cage

Front 18

Muscle:Serratus anterior

Origin:

Insertion:

Fuction:

Back 18

Origin= Ribs 1-9, lateral surface of thorax

Insertion= Inner vertebral border of scapula

Function= Elevates ribs 1-9

Front 19

Muscle: Subclavius

Origin:

Insertion:

Fuction:

Back 19

Origin= Inferior surface of clavicle

Insertion= Superior surface of rib 1 at chondral margin

Function= elevates rib 1

Front 20

Muscle: Levator scapulae

Origin:

Insertion:

Fuction:

Back 20

Origin= Transverse processes of C1-C4

Insertion= Medial border of scapula

Function= Neck support; elevates scapula

Front 21

Muscle: Rhomboideus major

Origin:

Insertion:

Fuction:

Back 21

Origin= Spinous processes of T2-T5

Insertion= Scapula

Function= stabilizes shoulder girdle

Front 22

Muscle: Rhomboideus minor

Origin:

Insertion:

Function:

Back 22

Origin= Spinous processes of C7 and T1

Insertion= Medial border of scapula

Function= stabilizes shoulder girdle

Front 23

Muscle: Trapezius

Origin:

Insertion:

Function:

Back 23

Origin= Spinous processes of C2 to T12

Insertion= Acromion of scapula and superior surface of clavicle

Function= Elongates neck; controls head

Front 24

Muscle: Scalenus medius

Origin:

Insertion:

Function:

Back 24

Origin= Transverse processes of vertebrae C2-C7

Insertion= Superior surface of the first rib

Function= elevates rib 1