Anatomy E4, V Ruminant Neck

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Ligamentum Nuchae is divided into:
- Cranial
- Caudal
Which part of the ligamentum nuchae is paired?

Cranial
The Cranial Ligament Nuchae extends from ___ to ____
- Funicular part
- C2 & C3
The Caudal Ligament Nuchae extends from ___ to ____
- T1
- C4-C7
The ox Lig. Nuchae compared to the equine's
- Ox's slants ventrolaterally over the summits of spinous process
- (reduce friction)
What muscle forms the hump in bos indicus?

M. Rhomboideus Cervicis
The Brachiocephalicus =>
- Cleidobrachialis
- Cleidocephalicus => Cleidooccipitalis & Cleidomastoideus
Species Variations of the Cleidomastoideus (1):

Sheep: Tendon of insertion fuses with the sternocephalicus
Which neck muscle is not an extrinsic m of the forelimb?

Sternocephalicus
Species variations of the sternocephalicus have two divisions (3)?
- Ox: 2 divisions
- Goat: 2 divisions
- Carnivores: 2 divisions
In the ox and goat, the sternocephalicus => ___ & ___
- Sternomastoideus
- Sternomandibularis
The thyroid gland is _____, forming two parts:
- Bilobed
- Isthmus
- Body
The thyroid in the Ox:
- Isthmus: Glandular
- Body: Lobulated and flattened
The thyroid in small ruminants:
- Isthmus: Glandular
- Body: Oval
Contents of the carotid sheath in ruminants:
- Internal Jugular
- Vagosympathetic
- Common Carotid
Borders of the jugular vein in ox/goat
Dorsal:
Ventral:
Cranial:
Medial:
- Dorsal: Cleidomastoideus
- Ventral: Sternomandibularis
- Cranial: Sternomastoideus
- Medial: Sternomastoideus
Borders of the Jugular Groove in the Sheep:
Dorsal:
Ventral:
Cranial:
Medial:
- Dorsal: Cleidomastoideus
- Ventral: Sternocephalicus
- Cranial: NONE
- Medial: NONE
Which Cervical LN is palpable in all domestic Spp?

Superficial Cervical LN
Location of the Superficial Cervical LN

Cranial to the shoulder joint, under the Brachiocephalicus and Omotransversarius
Species Variations of the Subclavius m (3):
- Carnivores: Absent
- Ox: Vestigial
- Goat: Well Developed
The thymus grows in what direction?

Cranio-Caudal
Parts of the ruminant Thymus:
- Cervical
- Intermediate
- Caudal
Appearance of the mature ruminant's thymus (2):
- Cervical Part: Full Regression
- Caudal Part: Fibrotic
Appearance of the young ruminant's thymus(3):
- Large
- Lobulated
- Extends from laryxn to pericardium
Which lnn's are divided into Cr, Middle and Ca Groups?

Deep Cervical Ln
Cr and Middle Deep Cervical LN Spp differences:
- Small Ruminants: Absent
- Pig: Absent
Ca Deep Cervicale LN spp differences:

Well Developed in all species, except DOGS
Location of the....
Cr Cervical LN:
Middle Cervical LN:
Ca Cervical LN:
- Cr Cervical LN: Trachea
- Middle Cervical LN: Craniodorsal to thyroid
- Ca Cervical LN: Thoracic Inlet
The esophagus is located on the ___ side

Left
Spp difference of esophagus in ruminants:

Entirely lined w/ Striated M
Locations of Esophageal flexions...
- 1st: Btw head and neck
- 2nd: Thoracic Inlet
- 3rd: Base of the Heart
- 4th: Hiatus
Which Flexions are permanent?

3 & 4
Most common sites of esophageal obstructions in (most frequent - least)
Ruminants:
Dogs:
- Ruminants: 1, 2 & 4
- Dogs: 3 & 4

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HLW

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Anatomy E4, V Ruminant Neck

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Anatomy E4, V Ruminant Neck

Updated

2011-04-02T17:45:59Z

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