Head Vessels & Lymphatics Flashcards
What is the main blood supply to the head?
common carotid A
What are the 3 branches of the common carotid A?
- cranial thyroid A
- internal carotid A
- external carotid A
What special structure is near the internal carotid A?
carotid sinus/body
Which species have a small internal carotid A that becomes less patent with age?
ruminants + pig
(T/F) The linguofacial trunk may or may not be present in the ox.
True
Which artery is the first branch off the linguofacial trunk A. only in the horse?
ascending palatine A
(T/F) The facial A gives off the deep lingual A in the horse while the lingual A gives off the sublingual A.
False - opposite
Which branches does the lingual A give off in the ruminant?
sublingual A
deep lingual A
The superficial temporal A gives off what two branches? What additional branch in the ox?
transverse facial A
rostral auricular A
ox: cornual A
After the superficial temporal A comes off the external carotid A, it continues as _________.
maxillary A
Which artery is better seen in the ox and supplies all structures of the orbit?
external ophthalmic A
What arteries penetrate and supply the eyeball/globe?
posterior ciliary Aa
What are the two terminations of the maxillary A?
infraorbital A
descending palatine A
In the ox, blood from the ___________ A doesn’t enter into the cerebral arterial circle, while branches of _________ A do.
internal carotid A
maxillary A
Small ruminants have no _______ A. Instead, nasal, superior labial Aa come from a large _________ A.
facial A
transverse facial A
What is function of the venous sinuses of the head?
pocket to store blood flow during mastication/muscle contraction
Which two veins come together to form the external jugular V?
maxillary V
linguofacial V
Term for the triangular area where an infected guttural pouch can be drained surgically.
viborg’s triangle
Viborg’s triangle is made up of what 3 structures?
- tendon of sternocephalicus M
- ramus of mandible
- linguofacial V.
The parotid, mandibular, and medial retropharyngeal lymph nodes all have efferent lymph vessels which drain to _________.
lateral retropharyngeal lymph node
Infection of the mandibular lymph node can result in ________ while infection of medial retropharyngeal lymph node can result in _________.
purulent drainage
nasal discharge
Efferent lymph vessels from the lateral retropharyngeal lymph node drain where?
tracheal trunk
