Neck Flashcards
How do we divide the neck?
Into 2 triangles
Ant - From midline to ant border of SCM
Post - From post border of SCM to ant border of Trapezius
Whats contained in the anterior triangle?
- Carotids
- IJV
- Facial art/vein
- Submental/Submandibular lymph nodes
- Cr Ns 9->12
Whats contained in the post triangle?
- External Jugular Vein
- Lymph nodes
- Occipital Art
- Accessory Nerve (CN XI) and cervical nerve plexus
The ext carotid branches in the neck, what are its branches?
Post -> Sup:
- Sup Thyroid
- Asc Pharyngeal
- Lingual
- Occipital
- Facial
- Posterior Auricular
- Maxillary
- Superficial Temporal
Order is not certain so don’t worry about it just a rough guide.
Where does the Common carotid divide?
At C4
Where do we insert a cental line?
Into the subclavian vein
When would we use a central line?
Tests:
- Central Venous pressure
- Blood sampling
Treatment:
- Drugs
- Cardiac Pacing
- Haemodialysis
- Fluid Resus
- IV nutrition
Complications of a central line?
- Pneumothorax
- Air Embolism
- Thrombosis
- Haematoma
- Chylothorax
- Sepsis
- Cardiac Tamponade
- False Passage
- Line Blockage
How does neck lymph drain?
Into deep cervical lymph nodes
Then into left and right jugular lymphatic trunks
Then into thoracic and right lymphatic ducts respectively.
How do we describe lymph nodes in the neck?
By group, covered in Yr 1 By level: 1 - Submental/Submandibular region 2-4 - The SCM is split into 3rds starting at the top 5 - Posterior triangle 6 - Midline
Where do the various groups of neck lymph nodes drain?
Supraclavicular
What does the thyroid gland and parathyroid glands do?
Thyroid:
- Thyroid hormone
- Calcitonin (Lowers Ca and raises Phosphate)
Parathyroid glands:
Regulate ca & phosphate levels
Describe the structure of the thyroid and parathyroid glands?
Thyroid gland is two lobes connected by an isthmus.
4 parathyroid glands are located posteriorly to the thyroid poles
What is a thyroglossal cyst?
The thyroglossal duct from the back of the tongue to the thyroid gland persists (should be lost during embryological development)..
It the dilates froming a cyst which appears in the midline and grows with age.
You must do an US then excise or drain the cyst.
How do we divide thyroid masses?
Solitary Nodules
Diffuse Goitre
Multi-nodular Goitre