Head/Neck/Face

Question 1

Origin, Insertion, Action & Nerve Innervation for Sternocleidomastoid

Answer 1

Origin - (Sternal head) top of manubrium (Clavicular head) medial 1/3 of clavicle

Insertion - Mastoid process of temporal bone & lateral portion of superior nuchal line

Action - (uni) Laterally Flex to the same side & Rotates to opposite side (bi) Flex

Nerve Innervation - Spinal accessory nerve (XI) C2&3

Question 2

Scalenes Origins, Actions, Insertions & Nerve Innervation

Answer 2

Origin - A C3-C6 M C2-C7 P C6-C7

Insertion - A 1st rib M 1st rib P 2nd rib

Action - (uni) Laterally Flex same side & Rotate to opposite side (bi) Elevate ribs & Anterior also Flexs the neck&head

Nerve Innervation - C3-C8

Question 3

Origin, Insertion, Action & Nerve Innervation for Masseter

Answer 3

Origin - Zygomatic Arch

Insertion - Angle & ramus of mandible

Action - Elevate mandible

Never Innervation - Trigeminal nerve (V)

Question 4

Temporalis Nerve Innervation, Action, Insertion & Origin

Answer 4

Origin - Temporal fossa & fascia

Insertion - Coronoid process & anterior edge of ramus

Action - Elevate & Retract mandible

Nerve Innervation - Trigeminal never (V)

Question 5

Origin, Action, Insertion & Nerve Innervation for Geniohyoid

Answer 5

Origin - Underside of mandible

Insertion - Hypoid bone

Action - Elevates hyoid & tongue, also it Depresses the mandible

Never Innervation - C1&2

Question 6

Mylohyoid Origin, Insertion, Action & Never Innervation

Answer 6

Origin - Underside of mandible

Insertion - Hyoid bone

Action - Elevate hyoid & tougne, also to Depress mandible

Nerve Innervation - Trigeminal

Question 7

Origin, Insertion, Nerve Innervation & Action of Stylohyoid

Answer 7

Origin - Styloid process

Insertion - Hyoid bone

Action - Elevate hyoid & tongue also to depress mandible

Nerve Innervation - Facial (VII)

Question 8

Origin, Action, Nerve Innervation & Insertion for Digastric

Answer 8

Origin - Mastoid Process

Insertion - Inferior border of mandible

Action - Depress & Retract the mandible & Elevate the hyoid

Nerve Innervation - Anterior belly; Trigeminal never Posterior belly; Facial (VII)

Question 9

Sternohyoid Nerve Innervation, Action, Insertion & Origin

Answer 9

Origin - Top of manubrium

Insertion - Hyoid bone

Action - Depress the hyoid bone & thyroid cartilage

Nerve Innervation - C1-C3

Question 10

Origin, Insertion, Nerve Innervation & Action for Sternothyroid

Answer 10

Origin - Top of manubrium

Insertion - Thyroid cartilage

Action - Depresses hyoid bone & thyroid cartilage

Nerve Innervation - C1-C3

Question 11

Thyroidhyoid Origin, Insertion, Action & Nerve Innervation

Answer 11

Origin - Thyroid cartilage

Insertion - Hyoid bone

Action - Depress hyoid bone & thyroid cartilage

Nerve Innervation - C1&2

Question 12

Nerve Innervation, Action, Origin & Insertion of Omohyoid

Answer 12

Origin - Superior border of scap

Insertion - Hyoid bone

Action - Depress hyoid bone & thyroid cartilage

Nerve Innervation - C1-C3

Question 13

Insertion, Action, Nerve Innervation & Origin of Platysma

Answer 13

Origin - Fascia covering superior part of pec major

Insertion - Base of mandible

Action - Depress mandible, Tighten fascia of the neck & Draw down corner of mouth

Nerve Innervation - Fascial (VII)

Question 14

Occipitofrontalis Origin, Insertion, Action & Nerve Innervation

Answer 14

Origin - Galea aponeurosis

Insertion - (Frontalis) skin superior to eyebrows (Occipitalis) superior nuchal line

Action - (Frontalis) Raise eyebrows (Occipitalis) Anchor & Retract galea posteriorly

Nerve Innervation - Fascial (VII)

Question 15

Nerve Innervation, Origin, Action & Insertion of Medial Pterygoid

Answer 15

Origin - Medial surface of lateral pterygoid plate of sphenoid bone & Tuberosity of maxilla

Insertion - Medial surface of ramus

Action - (uni) Laterally Deviate the mandible to opposite side (bi) Elevate & Protract mandible

Nerve Innervation - Trigeminal (V)

Question 16

Lateral Pterygoid Origin, Action, Nerve Innervation & Insertion

Answer 16

Origin - (Superior head) Infratemporal surface & crest of greater wing of sphenoid bone (Inferior head) Lateral surface of lateral Pterygoid plate of sphenoid bone

Insertion - Articular disc & capsule of temporomandibular joint, neck mandible

Action - (uni) Laterally deviate mandible to opposite side (bi) Protract mandible

Nerve Innervation - Trigeminal (V)

Question 17

Longus Capitis Origin, Action, Insertion & Nerve Innervation

Answer 17

Origin - TVPs of C3-C6

Insertion - Inferior surface of occiput

Action - (uni) Laterally flex & Rotate to same side (bi) Flex head&Neck

Nerve Innervation - C1-C4

Question 18

Nerve Innervation, Action, Origin & Insertion of Longus Colli

Answer 18

Origin - Bodies of C5-T3, TVPs of C3-C5

Insertion - Tubercle on anterior arch of C1, bodies of C2-C4 & TVPs of C5&C6

Action - (uni) Laterally Flex & Rotates to same side (bi) Flex head&neck

Nerve Innervation - C2-7