Chapter 10

Question 1

origin of the erector spinae?

Answer 1

= sacrum/iliac crest

Question 2

Epax. Muscle: Superficial Layer

Answer 2

called the erector spinae

Question 3

Iliocostalis

Answer 3

Erector Spinae Origin = sacrum/iliac crest Insertion = ribs

Question 4

Longissimus

Answer 4

Origin = sacrum/iliac crest Insertion = transverse processes longissimus, describing shape of the muscle, longest muscle in body, sacrum to the skull

Question 5

Transverso-spinalis

Answer 5

Origin = sacrum/iliac crest & transverse processes Insertion = spinous processes -most medial

Question 6

three divisions of the hypx. muscle

Answer 6

Body Wall Prevertebral Limbs (later lecture) (Usually do not receive intervation from dorsal rami )

Question 7

what are the subdivions of the body wall (hypx. muscle)

Answer 7

Abdominal Thoracic Perineal (holding in celomic space Neck(no celomic space unlike others)

Question 8

intermediate layer of the epaxial muscle: Multifidus

Answer 8

Origin = sacrum/iliac crest Insertion = articular processes & spinous processes

Question 9

intermediate layer of the epaxial muscle: Semispinalis

Answer 9

Origin = transverse processes Insertion =spinous processes

Question 10

what does superior epax relate to intermediate layer or epax. muscle?

Answer 10

superficial longer, deeper-shorter

Question 11

Deep Layer Of epaxial muscle

Answer 11

Short slips of muscle, connecting adjacent vertebrae

Question 12

slide 13

Answer 12

understand anatogonist, lateral flexion

Question 13

abdominal

Answer 13

external oblique, internal oblique, transversus

Question 14

Superficial = external abdominal Oblique

Answer 14

Origin: Lower 8 ribs Insertion: top of rectus sheath

Question 15

Intermediate = Internal Oblique

Answer 15

Origin: Iliac crest Insertion: Rectus sheath

Question 16

Deep = Transversus

Answer 16

Origin: Thoracolumbar fascia, overlies expanxial musclature.Insertion: Sheath deep to the abdominus rectus

Question 17

limbs usually do not recieve intervation from the dorsal or ventral rami? imp. concept

Answer 17

it is hypaxial musculature, does not recieve intervation from the dorsal rami

Question 18

the external oblique and internal oblique are generally what to each other?

Answer 18

perpendicular, external oblque down like pockets, internal like thumb

Question 19

why are the abdominal muscles in several directions?

Answer 19

strong in different directions, fiber directions show where it is strong

Question 20

how are the superior abdominal muscle (ext. abdominal oblique)?

Answer 20

origin is the lower rib, insertion is at the top of the rectus, general rule is pelvis is usally where things originate and insert more superior, this

Question 21

what are Subdivision of the Thoracic Group?

Answer 21

Externalintercostal/InternalIntercostal/Transversus thoracis

Question 22

the three body wall sub divisions, abdominal , thoracic, and perineal are all what to each other?

Answer 22

homo, the superfical layers,the intermediate and deep are all homo to each other

Question 23

the intercostals and abdominals muscles go the same fiber direction?

Answer 23

yes! besides the transverese throacic which is kind of spiderwebby, spread out radically

Question 24

all deep layers of perional abdominal and intercostals all are what?

Answer 24

have to do something with transverse

Question 25

Perineal Group,Superficial

Answer 25

Urogenital Diaphragm (External Anal Sphincter concious control//Deep Transverse Perineal)

Question 26

Subdivision of the Perineal Group/Intermediate

Answer 26

Pelvic Diaphragm:- Coccygeus- Levator ani

Question 27

Subdivision of the Perineal Group/Deep

Answer 27

Transversalis Fascia/Deteriots as you get older, consistent deepest layer,

Question 28

Subdivision of the Neck Region, whats left?

Answer 28

Scalenes are what are left

Question 29

The Diaphragm was originally what?

Answer 29

hypaxial cervical musculature

Question 30

how did the diaphragm move down?

Answer 30

Heart above your headto throaic, heart pushes diaphragm then ends up down, removed it from cervical region

Question 31

strap muscles: rectus abdominis

Answer 31

Paired muscle, location and shape/Rectus straight muscle of the abdomin/ Strap like muscles, plevis to head, muscles here are homo. To each other

Question 32

what is a rectus sheath?

Answer 32

Sheath of connective tissue, surrounding muscle fibers of rectus abdominos

Question 33

where does the rectus sheath meet?

Answer 33

left and right are meeting at midline at the lina alba in between rectus abdominos where sheaths meet each other

Question 34

Geniohyoid,

Answer 34

Named after origin and insertion/Genu( chin) inserting to hyoid (hyoid muscle)

Question 35

rectus sheath fibers go which way

Answer 35

no consistent, extra support on the outside, move tendons all on the superficial aspect

Question 36

arculate line in the abdominos does what?

Answer 36

marks charge deep leaf of rectus sheath, go to the superficial aspect of the abdominoal muscles , inferior

Question 37

Strap musclesRectus Series/Omohyoid

Answer 37

Sholder-hyoid, can depress hyoid

Question 38

Strap muscles/Rectus Series/Sternohyoid/Sternothyroid

Answer 38

Different insertions, different actions, two different muscles/Even though they have same origin

Question 39

name three Prevertebral Musculature (On the anterior aspect of your transvere processes, deep inside)

Answer 39

Longus capitis/Longus colli/Quadratus lumborum

Question 40

longus capitis(lateral to longus colli)

Answer 40

origin: cervical vertbrae insertion:base of skull

Question 41

longus colli

Answer 41

origin: bodies of vertbrae from throac/insertion:onto your cervical vertbrae for neck

Question 42

Quadratus lumborum

Answer 42

short of rectangular in shape/ abduct vertebral column, depresses rib 12 origin:iliac crest, lower lumbar verterbrae I: T12,l1-4,rib 12

Question 43

Attaches to pubic bone, is what quad?

Answer 43

Cranial/Ventral:(Superior/Anterior)

Question 44

Attaches to Ischium, is what quad?

Answer 44

Caudal/Ventral/Inferior/Anterior)

Question 45

Attaches to upper part of ilium is what quad? iliac crest, medial surface of ilium, ant, ilium spine

Answer 45

Cranial/Dorsal

Question 46

attaches the shaft/body of the illium and the lateral surface of the illium, out to the sides

Answer 46

Caudal/Dorsal --Inferior/Posterior)