Muscles Week 4

Question 1

What is the origin of Rectus Capitis Major

Answer 1

SP of C2

Question 2

What is the insertion of Rectus Capitis Major

Answer 2

Lateral portion of the inferior nuchal line

Question 3

What is the action of Rectus Capitis Major

Answer 3

Extension, Ipsilateral rotation & lateral flexion of the head

Question 4

What is the innervation of Rectus Capitis Major

Answer 4

Suboccipital Nerve

Question 5

What is the origin of Rectus Capitis Minor

Answer 5

Posterior Tubercle of C1

Question 6

What is the Insertion of Rectus Capitis Minor

Answer 6

Medial portion of inferior nuchal line

Question 7

What is the action of Rectus Capitis Minor

Answer 7

extension, ipsilateral lateral flexion of the head

Question 8

What is the innervation of Rectus Capitis Minor

Answer 8

Suboccipital Nerve

Question 9

What is the Origin of Obliquus Capitis Superior

Answer 9

TP of C1

Question 10

What is the insertion of Obliquus Capitis Superior

Answer 10

Below inferior nuchal line

Question 11

What is the action of Obliquus Capitis Superior

Answer 11

Extension, Ipsilateral rotation & lateral flexion of the head

Question 12

What is the innervation of Obliquus Capitis Superior

Answer 12

Suboccipital nerve

Question 13

What is the origin of Obliquus Capitis Inferior?

Answer 13

SP of C2

Question 14

What is the insertion of Obliquus Capitis Inferior?

Answer 14

TP of C1

Question 15

What is the action of Obliquus Capitis Inferior?

Answer 15

Extension, ipsilateral rotation of the head

Question 16

What is the innervation of Obliquus Capitis Inferior?

Answer 16

Suboccipital nerve

Question 17

What is the origin of Digastric? (Posterior Belly)

Answer 17

Mastoid Process

Question 18

What is the origin of Digastric? (Anterior Belly)

Answer 18

Digastric Fossa of Mandible

Question 19

What is the insertion of Digastric? (both bellies)

Answer 19

Hyoid Bone

Question 20

What is the Action of Digastric?

Answer 20

Elevation of Hyoid Bone & Depression of Mandible (Stabilizes Hyoid Bone Infrahyoid Action)

Question 21

What is the innervation of Digastric (Posterior Belly)

Answer 21

Facial Nerve CN VII

Question 22

What is the innervation of Digastric (Anterior Belly)

Answer 22

Trigemenial Nerve CN V

Question 23

What is the origin of Stylohyoid?

Answer 23

Styloid Process

Question 24

What is the insertion of Stylohyoid?

Answer 24

Hyoid Bone

Question 25

What is the action of Stylohyoid?

Answer 25

Elevation of Hyoid “Swallowing” (stabilizes hyoid bone for infrahyoid action)

Question 26

What is the innervation of Stylohyoid?

Answer 26

Facial Nerve CN VII

Question 27

What is the origin of Geniohyoid?

Answer 27

Inner surface of mandible

Question 28

What is the insertion of GenioHyoid?

Answer 28

Hyoid Bone

Question 29

What is the Action of Geniohyoid?

Answer 29

Elevation of hyoid bone. (Depression of Mandible)

Question 30

What is the innervation of Geniohyoid?

Answer 30

Hypoglossal Nerve CN XII

Question 31

What is the origin of Mylohyoid?

Answer 31

Inner surface of mandible

Question 32

What is the insertion of Mylohyoid?

Answer 32

Hyoid bone

Question 33

What is the action of Mylohyoid?

Answer 33

Elevation of hyoid bone. (Depression of mandible when hyoid is fixed)

Question 34

What is the innervation of Mylohyoid?

Answer 34

Trigimenial nerve CN V

Question 35

Answer 35

Rectus Capitis Major

Question 36

Answer 36

Rectus Capitis Minor

Question 37

Answer 37

Obliquus Capitis Superior

Question 38

Answer 38

Obliquus Capitis Inferior

Question 39

Answer 39

Digastric

Question 40

Answer 40

Stylohyoid

Question 41

Answer 41

Geniohyoid

Question 42

Answer 42

Mylohyoid