Regions Of The Head And Neck

Question 1

Regions of the head are divided into two parts namely

Answer 1

1. Neurocranium
2. Viscerocranium

Question 2

Neurocranium portion is made up of?

Answer 2

1. Frontal, parietal, temporal and occipital regions

Question 3

The viscerocranium portion is made of

Answer 3

1. Orbital region
2. Infraorbital region
3. Buccal region
4. Parotid region
5. Zygomatic region
6. Nasal region
7. Oral region
8. Mental region

Question 4

Regions of the neck

Answer 4

1. Anterior cervical triangle

Question 5

Borders of the anterior cervical triangle

Answer 5

1. Anterior: imaginary anatomical midline
2. Posterior: Anterior border of sternocleidomastoid muscle
3. Superior: inferior border of the mandible
4. Roof: Subcutaneous tissue of platysma muscle
5. Floor: Pharynx, larynx, thyroid gland
6. Apex: jugular notch

Question 6

What are the imaginary triangles within the anterior cervical triangle?

Answer 6

1. Submental triangle
2. Submandibular triangle
3. Carotid triangle
4. Muscular triangle

Question 7

Mention the suprahyoid muscles, their origin and insertion

Answer 7

1. Stylohyoid muscle- origin: styloid process, insertion: body of hyoid
2. Digastric muscle
   - Anterior belly: Origin- Digastric fossa, Insertion- Intermediate tendon that attaches to the body of hyoid
   - Posterior belly: Origin- Intermediate tendon, Instertion: Digastric groove
3. Mylohyoid muscle- Origin: Mylohyoid line of mandible, insertion: body of hyoid
4. Geniohyoid muscle- Origin: inferior mental spine of the mandible, Insertion: body of hyoid

Question 8

Mention infrahyoid muscles and their origin and insertion

Answer 8

1. Sternohyoid muscle- Origin: manubrium of the sternum, medial end of the clavicle, Insertion: Hyoid
2. Omohyoid muscle- Origin: Superior border of the scapula, Insertion: Hyoid
3. Thyrohyoid- Origin: Oblique line on lamina of thyroid cartilage, Insertion: Hyoid
4. Sternothyroid- Origin: Manubrium of sternum, Insertion: oblique line on lamina of thyroid cartilage