Ruminant Head, Neck, Thorax, Abdomen Flashcards
Peterson’s nerve block anesthetizes nerves exiting through which opening?
orbitorotundum foramen
Which nerves exit through the orbitororotundum foramen
CN V- opthalmic br and maxillary
CN III
CN IV
CN VI
Which nerve is anesthetized to facilitate eye exam?
auriculopalpebral
Innervation to the horn: 1) Ox 2) goat
1) cornual (maybe great auricular)
2) great auricular, cornual, infratrochlear
Pulse in 1)ox 2) goats
1) facial
2) transverse facial
Which structure must you be careful to avoid during trephination of frontal sinus?
frontal vein (in supraorbital groove)
Which two ln are important in meat inspection?
parotid and lateral retropharyngeal
What structure separates rostral and caudal compartments of frontal sinus?
Oblique septum
The cornual nerve is a branch of which CNN subdivision?
Maxillary subdivison of CNN V
What is the horn producing skin called?
Epiceras
subtract how many months for small ruminant eruption dates?
6 months
What forms the ventral boundary of the jugular groove in 1) ox 2) goats
1) sternomandibularis
2) sternozygomaticus
What stimulates musk/scent glands in goats?
testosterone
Vertebral formula:
1) cattle
2) goats
3) sheep
1) C7-T13-L6-S5-Cd var
2) C7-T13-L6(7)-S5-Cd var
3) C7-T13-L6(7)-S4-Cd var
What ventilates the right cranial lung lobe?
tracheal bronchus
Which set of ln are located btwn the esophagus and descending aorta? (can impede eructation if enlarged)
Caudal mediastinal ln
Where does the L azygous vein drain?
coronary sinus (in R atrium)
Where is the cardia located?
7th ICS
What are the 3 parts of the gastric groove?
1) reticular groove
2) omasal groove
3) abomasal groove
What are the attachment points on the rumen for the superficial and deep leafs of greater omentum?
Superificial–left long groove
Deep–right longitudinal groove
What does LDA stand for?
Left displaced abomasum
What structure covers the right surface of the omasum?
Lesser omentum
Cup-shaped branch of ureter that drain the kidney lobes in cattle?
Calyx
Which nerves are involved in anesthetizing the flank region?
T13, L1, L2
What 2 anatomical landmarks need to be avoided in peterson eye block?
1) Coronoid process of mandible
2) pterygoid crest
What structure can be damaged in retrobulbar eye block?
lacrimal bulla
which ln is the collecting center for the entire head? where does it channel its outflow?
Lat. retropharyngeal ln; trachael duct
3 common locations for choke to occur?
1) esophageal hiatus
2) base of heart
3) thoracic inlet
Where does the 1) left azygous vein 2) right azygous vein drain?
1) coronary sinus
2) cranial vena cava
Bony structure of ruminant hearts. What do they support?
Os chordis; aoritc valves
Which nerves block is performed for
1) incision in upper flank? What br blocked?
2) lower flank? Branches blocked?
1) proximal paravertebral block; dorsal and ventral branches
2) distal paravertebral block; ventral branches only
Which tendon can be cut to alleviate pain from bone spavin?
Cunean tendon
Which structure is associated with curb?
Long plantar ligament
Which artery is main blood supply to hindlimb?
Dorsal metatarsal
