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Flashcards in 2. Myology (Olinger) Deck (50)
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1
Q

Identify the blacked out structures.

A
2
Q

Which nerves innervate the anterior, middle, and posterior scalene muscles?

A

Anterior scalene: C4-C6.

Middle scalene: C3-C8.

Posterior scalene: C6-C8.

3
Q

What innervates the anterior belly of the digastric muscle?

A

The nerve to the mylohyoid.

4
Q

What are the infrahyoid muscles?

A

Sternothyroid muscle.

Thyrohyoid muscle.

Sternohyoid muscle.

Omohyoid muscle.

5
Q

What is the innervation to the geniohyoid?

A

Fibers from C1, which travel with the hypoglossal nerve.

6
Q

What is the innervation to the stylohyoid?

A

The facial nerve.

7
Q

What is the innervation to the thyrohyoid muscle?

A

Fibers from C1 by the hypoglossal nerve.

8
Q

What are the anterior borders for the superior, middle, and inferior pharyngeal constrictor muscles?

Where do they all attach posteriorly?

A

Anterior borders.

Superior – pterygomandibular raphae

Middle – hyoid

Inferior – thyroid cartilage

All three attach to the pharyngeal raphae posteriorly.

9
Q

Identify the following blackedout structures.

A
10
Q

Identify the blacked out infrahyoid muscles.

A
11
Q

In which triangle is the thyroid gland contained?

A

Within the muscular triangle – a sub triangle of the anterior triangle of the neck

12
Q

Label the following muscles.

In which triangle are they found?

A
13
Q

What is congenital torticollis?

A

CN: Congenital Torticollis is a disorder produced by fibrous tissue tumor which forms in the Sternocleidomastoid M. which causes the head to turn and the face to look away from the affected side. A hematoma can arise and impinge on the Spinal Accessory N. which denervates the Stenocleidomastoid M.

14
Q

What is the innervation to the posterior belly of the digastric muscle?

A

The facial nerve.

15
Q

What are the two divisions for zones I, II, and III of the neck?

A

The angle of the mandible and the cricoid cartilage.

16
Q

What innervates the sternocleidomastoid?

A

The spinal accessory nerve.

17
Q

Identify the following posterior aspect laryngeal muscles.

A
18
Q

What is the innervation for all of the laryngeal muscles except for the cricothyroid?

A

Recurrent laryngeal nerve.

19
Q

Identify the following muscles on the lateral aspect of the larynx, deep to the thyroid cartilage.

A
20
Q

What innervates the anterior vertebral column muscles?

A

Anterior rami of the cervical spinal nerves.

21
Q

Label the following three structures.

A
22
Q

Where does longus capitis insert?

A

On the skull anterior to the foramen magnum.

23
Q

Identify the following triangles and listed borders.

A
24
Q

Identify the blacked out suprahyoid muscles.

A
25
Q

What four muscles make up the suprahyoid muscles?

A

Mylohyoid M.

Geniohyoid M.

Stylohyoid M.

Anterior belly of the digastric M.

Posterior belly of the digastric M.

26
Q

What are the contents of the submandibular triangle?

A

Facial artery.

Submental artery.

Submandibular gland.

Hypoglossal nerve.

Mylohyoid nerve.

27
Q

What are the muscles of the anterior vertebral column?

A

Longus colli (superior oblique, vertical, inferior oblique).

Longus capitis.

Rectus capitis anterior.

Rectus capitis lateralis.

28
Q

How can you tell apart the stylohyoid muscle and the posterior belly of the digastric muscle?

A

The stylohyoid muscle remains muscular throughout its entire presentation.

The posterior belly of the digastric muscle has a tenderness portion near its insertion.

29
Q

What is the origin and insertion for rectus capitis anterior and rectus capitis lateralis?

A

Both go from the atlas to the occipital bone.

30
Q

What are the contents of the carotid triangle?

A

Hypoglossal nerve.

Internal jugular vein.

Vagus nerve.

External carotid artery.

Common carotid artery.

Ansa cervicalis.

31
Q

Identify the blacked out contents of the carotid triangle.

A
32
Q

What is spasmodic torticollis?

A

Adult onset torticollis which involves abnormal tonicity of the cervical muscles - usually sternocleidomastoid and trapezius.

33
Q

Identify the blacked out origins and insertions for the pharyngeal muscles.

A
34
Q

Identify the blocked out muscles on the anterior vertebral column.

A
35
Q

What is significant about zone II in terms of neck wounds?

A

Zona II is the most dangerous, but also the most easy to access surgically.

36
Q

What are the laryngeal muscles?

A

Cricothyroid muscle.

Posterior cricoarytenoid muscle.

Lateral cricoarytenoid muscle.

Transverse arytenoid muscle.

Thyroarytenoid muscle.

Oblique arytenoid muscle.

(Aryepiglottic part of the oblique arytenoid muscle.)

Vocalis muscle.

37
Q

What are the attachment points for the salpingopharyngeus muscle?

A

The pharyngotympanic tube and the pharynx.

38
Q

What are the contents of the muscular triangle?

A

Sternohyoid muscle.

Sternothyroid muscle.

Thyroid gland.

Parathyroid gland.

39
Q

What are the pharyngeal constrictor muscles?

What innervates these muscles?

A

The pharyngeal constrictor muscles include the superior, middle, and inferior pharyngeal constrictor muscles.

They are innervated by the pharyngeal branch of the vagus nerve and pharyngeal plexus.

40
Q

What is this muscle?

A
41
Q

What are the contents of the posterior triangle?

A

Levator scapulae muscle.

Anterior, middle, and posterior scalene muscles.

The inferior belly of the omohyoid muscle.

Splenius Capitis M.

42
Q

Identify the blacked out contents of the anterior muscular triangle.

A
43
Q

What is the innervation to all of the infrahyoid muscle except for the thyrohyoid?

A

The ansa cervicalis.

44
Q

Identify the blacked out pharyngeal muscles.

A
45
Q

What is the innervation to the platysma?

A

A branch of the facial nerve.

46
Q

What is the innervation of the mylohyoid?

A

Nerve to the mylohyoid.

47
Q

What are the three parts of longus colli?

A

A superior oblique part, a vertical part, and an inferior oblique part.

48
Q

What is the innervation for the cricothyroid muscle?

A

The external laryngeal nerve.

49
Q

What are the boundaries of the posterior triangle of the neck?

A

The sternocleidomastoid, the trapezius, and the clavicle.

50
Q

Label the following structures of the posterior triangle.

A