Neck region Flashcards

1
Q

Boundaries of Neck region?

A

Mandible, Superior Nuchal line (posterior), Top of sternum and along clavicle. Spinous process of C7

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2
Q

Superior Thoracic aperture opens directly into the

A

base of the neck

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3
Q

Axillary inlet, on each side of the superior thoracic aperture opens to the

A

upper limb

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4
Q

How is it that there are 7 cervical vertebra and 8 cervical spinal nerves?

A

C1 nerve enters above C1 vertebra and C8 exits below C7

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5
Q

What are the typical cervical vertebrae?

A

C3-C6

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6
Q

What are the general characteristics of typical vertebrae?

A

Small body, large vertebral foramen (often triangular) transverse foramen, Bifid spinous process

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7
Q

Atypical cervical vertebrae?

A

C7, C1, C2

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8
Q

What is C7 also called and why?

A

It is called vertebra prominens because it has a long non bifid spinous process. It also has the smallest transverse

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9
Q

What is C1 called?

A

The atlas

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10
Q

What joint does the Atlas make?

A

atlanto occipital joint

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11
Q

Describe the structure of the Atlas

A

Lacks a body, lacks a spinous process

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12
Q

What is the function of the Atlas?

A

Allows for flexion and extension and some lateral flexion. Anterior and posterior atlanto occipital membranes provide broad support and limit excessive movement

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13
Q

What is C2 called

A

The Axis

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14
Q

The AXIS forms the ________ joint with C1

A

atlantoaxial joint

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15
Q

how many articulations does the axis have with the atlas?

A

three

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16
Q

what are the structures of the axis?

A

has a body
Bifid spinous process
the Dens (odontoid process)

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17
Q

what is the function of the axis?

A

rotation between C1 and C2

Strong ligaments hold it in place

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18
Q

Where are the alar ligaments ?

A

from the side of the dens to the foramen magnum

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19
Q

Where is the transverse ligament of C1 and C2

A

extends between tubercles in medial aspect of C1 vertebra

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20
Q

Where is the cruciate ligament at C1 and C2

A

it is formed by a transverse ligament and its superior and inferior extensions between C2 and C1

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21
Q

At what level is the hyoid bone?

A

C3

22
Q

Does the Hyoid bone have bony articulation?

A

no it is surrounded by muscles and ligaments, the stylohyoid ligament, and is bound to the thyroid cartilage by thyrohyoid membrane

23
Q

At what level are the laryngeal cartilages? What is their function, how many are there?

A

C3-C6 level
they guard the air passages and are involved in voice production
there are NINE of them

24
Q

What does the thyroid do and what is it deep to

A

it produces calcitonin and thyroid hormones, it is deep to the infrahyoid muscles

25
Q

Where does the superior thyoid artery come from?

A

From the external carotid artery

26
Q

Where does the inferior thyroid artery come from?

A

from the largest branch of the thyrocervical trunk

27
Q

Attachments of the sternocleidomastoid?

A

Lateral superior nuchal line and mastoid process to the:
anterior surface of manubrium
medial third of the clavicle

28
Q

Sternocleidomastoid innervation?

A

Motor: Accessory nerve (CNXI)
Sensory: C2 and C3

29
Q

Uni and bilateral Action of sternocleidomastoid?

A

Unilateral: lateral flexion to same side, ROTATION to opposite side
Bilateral: cervical flexion

30
Q

Attachment of Trapezius?

A

skul, scapula, clavicle

31
Q

Innervation of Trapezius? mot and sensory

A

Motor: CN XI
Sensory: C2 and C3

32
Q

Attachment and action of Anterior scalene?

A

Attachment: transverse processes of C4-6 and first rib
Action: Flex the neck and elevate first rib

33
Q

Innervation of anterior scalene?

A

cervical spinal nerves C4-6

34
Q

Attachment and action of middle scalene?

A

Attachment: transverse processes of C4-6 and first rib
Action: flex neck LATERALLY and elevate first rib

35
Q

Posterior scalene action and attachment?

A

Attachment: transverse processes of C4-6 and SECOND rib
Action: lateral flexion, elevate SECOND rib

36
Q

Does the phrenic nerve descend on the anterior posterior or middle scalene?

A

the anterior scalene

37
Q

List the infrahyoid muscles?

A

omohyoid
sternohyoid
sternothyroid
thyrohyoid

38
Q

Attachment of the Omohyoid? How many bellies does it have?

A

Superior scapula to the hyoid bone, it has two bellies connected by a tendon, attached to the clavicle by a fascial sling

39
Q

Innervation of omohyoid

A

C1-C3 or ansa cervicalis

40
Q

Attachment of Sternohyoid?

A

manubrium and medial clavicle to the hyoid

41
Q

innervation of the sternohyoid?

A

C1-3 ansa cervicalis

42
Q

Attachment and innervation of the sternothyroid?

A

Attachment: manubrium to thyroid
Innervation: C2-C3 ansa cervicalis

43
Q

Attachment and innervation of Thyrohyoid?

A

Attachment: Manubrium to thyroid
Innervation: C2-C3 ansa cervicalis

44
Q

what else does the thyrohyoid do?

A

elevates larynx and helps during swallowing and speaking

45
Q

What do all Infrahyoid muscles do?

A

Depress hyoid during swallowing and speaking

46
Q

List Suprahyoid Muscles

A

Mylohyoid
Geniohyoid
Digastric Muscle
Stylohyoid

47
Q

Attachment and innervation of the Mylohyoid?

A

Attachment: Mylohyoid line of the mandible to the hyoid bone
Innervation: Nerve to the mylohyoid (CNV3)

48
Q

Attachment and innervation for Geniohyoid?

A

Attachment: Mental Spine of the mandible to the hyoid
Innervation: C1 via hypoglossal nerve

49
Q

Attachment and innervation for anterior digastric?

A

Anterior belly
Attachment: digstric fossa of the mandible to the intermediate tendon
Innervation: Nerve to mylohyoid (V3)

50
Q

Attachment and innervation for POSTERIOR digastric?

A

Posterior Belly
Attachment: mastoid notch to the intermediate tendon
Innervation: facial nerve VII

51
Q

Attachment and Innervation of the stylohyoid?

A

Attachment: Styloid process of the temporal bone and the hyoid bone
Innervation: Facial nerve VII

52
Q

What do all Suprahyoids do?

A

Make up a significant portion of the floor of the mouth and provide support, they also elevate the hyoid and larynx