Angiology & Lymphatics

Question 1

Primary blood supply to head

Answer 1

Common carotid a.

Question 2

Common carotid a. originate from?

Answer 2

Brachiocephalic trunk

Question 3

Carotid sheath contains?

Answer 3

1. Common carotid a.
2. Internal jugular v.
3. Vagosympathetic trunk
4. Tracheal lymphatic trunk

Question 4

Common carotid a. terminates as?

Answer 4

Internal and external carotid a.

After giving off cd. and cr. thyroid aa.

Question 5

Difference between carotid sinus and carotid body

Answer 5

Carotid sinus: baroreceptor (blood pressure)

Carotid body: chemoreceptor

Question 6

Branches of external carotid a. before it becomes superficial temporal a.

Answer 6

1. Occipital a.
2. Cr. laryngeal a.
3. Lingual a.
4. Facial a.
5. Cd. auricular a.
6. Maxillary a.

Question 7

Branches of maxillary a.

Answer 7

Before entering alar canal:
1. Inferior alveolar a.

After alar canal:

2. External ophthalmic a.
3. Minor palatine a.
4. Descending palatine a.

Continues as infraorbital a.

Question 8

Parotid ln. drains?

Answer 8

1. Ear
2. Eyelids
3. TMJ

+associated glands

Question 9

Palpable ln.

Answer 9

Mandibular ln.

Question 10

Terminal ln. of head

Answer 10

Medial retropharyngeal ln.

Question 11

Medial retropharyngeal ln. is located?

Answer 11

Medial to mandibular sg. between wing of atlas and larynx

Question 12

Efferents of medial retropharyngeal ln. forms?

Answer 12

Tracheal lymphatic trunk