Gross 2 wk 1

Question 1

Problems with CN 7 may cause loss of sensation to the face. Name the condition.

Answer 1

Bells Palsy.

Question 2

Innervates primarily to the face and scalp.

Answer 2

Opthalmic Nerve (Branch of Trigeminal)

Question 3

Innervates primarily the cheek and the area lateral to the orbit.

Answer 3

Maxillary Nerve (Branch of Trigeminal)

Question 4

Innervates the chin and temporal region.

Answer 4

Mandibular Nerve (Branch of Trigeminal)

Question 5

Sudden attacks of severe pain occurring in an area of sensory distribution of the Trigeminal nerve.
Often due to touch.

Answer 5

Trigeminal Neuralgia

Question 6

Pathological contraction of the SCM.

Answer 6

Torticollis (Wryneck)

Question 7

Sign of congestive heart failure or obstruction of the superior vena cava. May also be found in opera singers or bagpipe players.

Answer 7

Prominent External Jugular Vein.

Question 8

Most important vascular triangle.

Answer 8

Carotid Triangle. Common carotid bifurcates here into the internal and external carotid arteries.

Question 9

Bone often broken in strangulation. No articulation with any other bone.

Answer 9

Hyoid.

Question 10

Contents of the carotid sheath.

Answer 10

Common carotid artery
Internal carotid artery
Internal jugular vein
Vagus nerve
Deep cervical lymph nodes

Question 11

Greater Occipital Nerve

Answer 11

AKA Posterior Primary Ramus of C2. Supplies the occipital region.

Question 12

Third Occipital Nerve

Answer 12

AKA Posterior Primary Ramus of C3. Supplies the upper part of the back of the neck.

Question 13

Posterior Primary Ramus of C4.

Answer 13

Supplies the lower part of the back of the neck.

Question 14

Lesser Occipital Nerve (C2)

Answer 14

Supplies the lateral part of the occipital region, posterior to the ear.

Question 15

Great Auricular Nerve (C2, C3)

Answer 15

Supplies the angle of the mandible, and the area inferior to the ear. It accompanies the external jugular vein.

Question 16

Transverse Cervical Nerve (C2, C3)

Answer 16

Supplies the anterior surface of the neck (the throat).

Question 17

Supraclavicular Nerve (C3, C4)

Answer 17

Supplies the lateral surface of the neck and has a medial, intermediate, and lateral subdivision.

Question 18

Ansa Cervicalis

Answer 18

Motor fibers that form a loop that supply the infrahyoid (strap) muscles.

Question 19

Superior Root

Answer 19

From C1, or C1 and C2. This portion descends from the hypoglossal nerve to join the inferior root.

Question 20

Inferior Root

Answer 20

From C2 and C3. This portion descends from cervical nerve branches to join the superior root.

Question 21

Thyrohyoid nerve supply.

Answer 21

Exclusively from the C1 fibers thru the hypoglossal nerve.

Question 22

Phrenic Nerve

Answer 22

From C3, C4, and C5. Motor to the diaphragm and sensory to some of the membranes of the thorax and abdomen. Found in the neck lying on the anterior surface of the anterior scalene muscle.

Question 23

Platysma origin.

Answer 23

Superficial fascia over the pectoralis major and deltoid muscles.

Question 24

Platysma Insertion.

Answer 24

Lower border of the mandible and the angle of the mouth.

Question 25

Platysma Nerve.

Answer 25

Cervical branch of facial nerve (CN VII).

Question 26

Platysma Function.

Answer 26

Depresses the mandible and draws down the corner of the mouth.

Question 27

SCM Origin.

Answer 27

Sternal head from the front of the manubrium and clavicular head from the medial third of the clavicle.

Question 28

SCM Insertion.

Answer 28

Lateral surface of the mastoid process and lateral half of the superior nuchal line.

Question 29

SCM Nerve.

Answer 29

Accessory Nerve (CN XI)

Question 30

SCM Function.

Answer 30

Chief flexor of the head.