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Human Anatomy > Unit 3_Neck and Cervical Triangles > Flashcards

Unit 3_Neck and Cervical Triangles Flashcards

1
Q

What does the Common Carotid artery bifurcate into?

A

Internal and External Carotid Arteries

Internal will join Circle of Willis

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2
Q

On the right side of the body, what gives off the Common Carotid artery?

A

Brachialcephalic Trunk

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3
Q

What arteries branch off the subclavian arteries?

A

Vertebral Arteries

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4
Q

What vein overlies anterior scalene muscle and drains the sinuses near the dura, so the superior petrosal and sigmoid sinuses?

A

Internal Jugular Vein

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5
Q

What vein overlies sternocleidomastoid muscle and mainly drains the facial area?

A

External Jugular Vein

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6
Q

What overlies the sternocleidomastoid and when it thickens it protects the carotid vessels and jugular vessels?

A

Pre tracheal fascia

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7
Q

What are superficial structures of the neck?

A

Platysma muscle

Sternocleidomastoid muscle

Trapezius muscle

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8
Q

What sensory nerve innervates and is found in the neck and head region, wraps around the head and is the base of the skull?

A

Lesser Occipital Nerve

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9
Q

What sensory nerve comes up by the ear and provides cutaneous innervation over the mastoid process and the front of the ear where the carotid gland is located?

A

Great auricular nerve

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10
Q

What sensory nerve provides cutaneous innervation to the anterior lateral neck?

A

Transverse Cervicle nerve

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11
Q

What sensory nerve provides cutaneous innervation to the upper shoulder, pec region?

A

Supraclavicular nerve

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12
Q

What lymph nodes are found in the cervical region?

A

Submandibular Nodes

Submental Nodes

Cervical Nodes

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13
Q

What is the neck divided into by the sternocleidomastoid?

A

Two triangles:

Posterior

Anterior

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14
Q

What are the borders of the Posterior triangle of the neck?

A

Sternocleidomastoid

Upper Trapezius

Clavicle (middle 1/3)

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15
Q

What muscles form the floor of the posterior triangle and are deep to sternocleidomastoid?

A

Splenius Capitis

Levator Scapulae

Scalene muscles

Inferior belly of omohyoid (omo - “shoulder”)

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16
Q

What muscle in the neck has two bellies, is deep to sternocleidomastoid, attaches superiorly to the hyoid bone and inferiorly to the suprascapular notch and depresses the hyoid after swallowing?

A

Omohyoid muscle

17
Q

What muscle does the brachial plexus lay over?

A

Middle scalene

18
Q

What contents are below the posterior triangle?

A

Nerves
- Cutaneous branches of cervical plexus (Erb’s Point*)
- Spinal accessory nerve CN XI
- Supraclavicular part of brachial plexus

Arteries
- Subclavian (*most important artery)
- Transverse cervical
- Suprascapular

19
Q

What does the subclavian artery turn into as it goes into the upper arm?

A

Axillary artery

20
Q

What is the location point in the neck called where the brachial plexus emerges?

A

Erb’s Point

21
Q

What are the borders of the anterior cervical triangle?

A

Sternocleidomastoid

Body of Mandible

Midline of Neck

22
Q

What are the 4 divisions of the anterior triangle?

A

4 triangles:

  • Submental
  • Submandibular
  • Carotid
  • Muscular
23
Q

Where does the Common Carotid artery split?

A

Carotid Triangle

24
Q

What are the boundaries of the submental triangle?

A

Anterior belly of the digastric m

Hyoid bone

Mylohyoid m

25
Q

What are the contents of the submental triangle?

A

Submental lymph nodes

Tributaries of anterior jugular v

26
Q

What are the contents of the submandibular triangle?

A

Submandibular gland

Submandibular nodes

Facial artery and vein

Internal jugular vein

Accessory nerve (CNXI)

Carotid sheath
- Internal jugular v
- Internal carotid A
- Vagus N (CNX)

Hypoglossal nerve (CNXII)

External carotid artery

27
Q

What are the boundaries of the carotid triangle?

A

Anterior border of SCM

Posterior belly of digastric m

Superior belly of omohyoid m

Middle and inferior pharyngeal constrictor m, thyrohyoid m

28
Q

What are the contents of the carotid triangle?

A

Carotid sheath
- Common Carotid artery (bifurcation)
- Internal Jugular vein

External carotid artery branches
- Superior thyroid artery
- Lingual and facial arteries

Hypoglossal n (CN XII)

Accessory n (CN XI)

Vagus n (CN X) branches:
- Superior laryngeal n (internal and external laryngeal n)

29
Q

What are the boundaries of the muscular triangle?

A

Midline of neck

Superior belly of omohyoid m

Anterior border of SCM

Sternohyoid m and sternothyroid m

30
Q

What are the contents of the muscular triangle?

A

Muscles: Strap muscle

Viscera:
- larynx, trachea
- pharynx and esophagus
- thyroid and parathyroid glands

Vessels: superior and inferior thyroid arteries

Nerves: vagus n (superior and recurrent laryngeal branches)

31
Q

What encapsulates around the contents of the submandibular triangle?

A

Carotid sheath

Human Anatomy (31 decks)

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