Intrinsic back And Neck Muscles

Question 1

What are all intrinsic muscles of the back innervated by

Answer 1

Posterior primary division of the spinal nerves

Question 2

In the superficial layer of the neck which two muscles can be found

Answer 2

Splenius capitis and Splenius cervicis

Question 3

This muscle originates at the Lower ligamentum nuchae SP of T1-T3 and inserts at the mastoid process

Answer 3

Splenius capitis

Question 4

This muscle originates at the SP of T3-T6 and inserts on the TP of C1-C3

Answer 4

Splenius Cervicis

Question 5

When Splenius capitis and Cervicis act alone what action occurs

Answer 5

The next is rotated to the side of contraction

Question 6

When Splenius capitis and cervicis contract together what action occurs

Answer 6

the head is drawn back

Question 7

The Iliocostalis is the

Answer 7

Most lateral column of intermediate muscles

Question 8

Where does the iliocastalis muscles originate from and insert to

Answer 8

Origainate on the iliac crest and insert on the ribs

Question 9

The longissimus muscles can be found

Answer 9

In the intermediate column, running between TPs

Question 10

The Spinalis muscles can be found

Answer 10

Most medial to the spine, running between spinous process

Question 11

what are some of the actions of the erector spinae group

Answer 11

Bilaterally extend column, assist in breathing, bend the column laterally

Question 12

The Rotators are the

Answer 12

Deepest transversospinous muscle

Question 13

Rotators are divided into short and long, how can they be differentiated

Answer 13

Short: run from a TP to a vertebrae SP one segment higher
Long: run from a TP to a vertebrae SP two segments higher

Question 14

The multifidus muscles run from

Answer 14

A TP to a Vertebrae SP 2-5 segments higher

Question 15

What are the 3 semispinalis muscles found above T10

Answer 15

Semispinalis Thoracis (T1-T4)
Semispinalis cervicis (insert on C2 Sp)
Semispinalis capitis (inserts on occipital bone)

Question 16

The interspinalis muscles are found between the spinous processes of adjacent vertebrae. What action do these muscles create and where are they best developed

Answer 16

Create the action of extension between transverse processes of adjacent vertebrae. Are best developed in invertebral column

Question 17

The intertransversarii are found in the cervical region and create the action of

Answer 17

Extending the column and bending towards the same side

Question 18

Which 2 suboccipital muscles origianate on the SP of C2

Answer 18

rectus capitis posterior major, obliquus capitis inferior,

Question 19

Obliquus capitis superior a suboccipital muscle that doesnot origanite at the SP of C2. Where does this muscle originate

Answer 19

TP of C1

Question 20

Which muscles make up the suboccipital triangle and what structures run through this triangle

Answer 20

Obliquus capitis superior, obliquus capitis inferior, rectus capitis posterior major.
Suboccipital nerve and vertebral artery pass through

Question 21

All of the anterior muscles are innervated by ___ and have the action of

Answer 21

Innervated by ventral primary rami of cervical nerves
Flex the head and neck

Question 22

The longs Colli muscle extends from

Answer 22

Anterior tubercle of atlas to body of T3

Question 23

The longus capitis muscles originates on the TP of C3-C6 and will insert on

Answer 23

Occipital bone

Question 24

The rectus capitis anterior attaches on the occipital bone, where does it originate form

Answer 24

lateral mass of Atlas

Question 25

The rectus capitis lateralis muscles runs from

Answer 25

TP of atlas to the occipital bone

Question 26

The anterior scalene muscle inserts on the

Answer 26

Scalene tubercle and first rib

Question 27

What is the action of anterior scalene

Answer 27

Elevation of first rib

Question 28

What nerves innervate anterior scalene

Answer 28

C4-C6

Question 29

The middle scalene originates on the postieor tubercle of TP C2-C7, where does it insert

Answer 29

Upper surface of ribs 1,2

Question 30

What is the action of middle scalene

Answer 30

elevation of ribs 1,2

Question 31

What is the innervation of middle scalene

Answer 31

C3-C8

Question 32

The Posterior scalene muscle inserts on Outer surface of rib 2, where does it originate

Answer 32

Posterior tubercle of C5-C7

Question 33

All of the scalene muscles receive vasculature from

Answer 33

Ascending cervical artery

Question 34

The general action of suprahyoids is to

Answer 34

Depress the mandible

Question 35

The general action of infrahyoids is to

Answer 35

Stabilize the hyoid

Question 36

What are the 4 muscles in the suprahyoid group

Answer 36

Digastric, gleniohyoid, stylohyoid, mylohyoid

Question 37

The digastric muscle features an anterior and posterior belly. Where does this muscle originate and insert

Answer 37

Originates at the mandible (anterior) and Mastoid process (posterior). Muscle inserts at the intermediate tendon

Question 38

The anterior belly of the digastric is innervate by

Answer 38

CN 5 V3

Question 39

The posterior belly of digastric is innervated by

Answer 39

CN 7 Facial

Question 40

The geniohyoid is the deepest suprahyoid that inserts on the hyoid. Where does the muscle originate

Answer 40

Genial spine

Question 41

C1 via the Hypoglossal nerve innervates which suprahyoid

Answer 41

Geniohyoid

Question 42

The stylohyoid insets on the hyoid, where does the muscle originate

Answer 42

Styloid process

Question 43

Which cranial nerve innervates stylohyoid

Answer 43

CN 7 (facial)

Question 44

The mylohyoid is the most superficial suprahyoid muscle that inserts on the hyoid. Where does the muscle originate

Answer 44

Mylohyoid line of mandible

Question 45

Which cranial nerve innervates hte mylohyoid muscle

Answer 45

Cn5 V3

Question 46

The sternohyoid muscle runs from the

Answer 46

Clavicle to hyoid

Question 47

The sternothyroid muscle runs from

Answer 47

Manubriuum to thyroid

Question 48

The sternohyoid and sternothyroid are innervated by

Answer 48

Ansa cervical is

Question 49

The thyrohyoid runs from

Answer 49

Thyroid cartilage to hyoid

Question 50

Which cranial nerve innervates the thyrohyoid

Answer 50

C1 via the CN 12

Question 51

The omohyoid features a superior and inferior belly. Where does the superior belly run

Answer 51

From intermediate tendon to hyoid

Question 52

The omohyoid has a superior and inferior belly. Where does the inferior belly run

Answer 52

From superior angle of scapula to intermediate tendon

Question 53

rectus capitis posterior minor is the only suboccipital muscle to not be included in the suboccipital triangle. Where does this muscle originate

Answer 53

Posterior tubercle of C1

Question 54

The longus colli muscle attaches to the bodies of vertebrae between ___ and ___

Answer 54

TPs and C3-C6