Lecture 3 Flashcards
- 1?
- 2?
- how can you distinquish the two?
- alar foramen
- Lateral foramen
- If you stick a probe into lateral foramen it will go into the vertebral foramen
do ruminants have transverse foramen on C1?
no!
2?
transverse foramen
What is different about the dens process in large animals
The dens process is short and wide, spout like
what is this an image of?
general cervical vertebrae C3-C6
- ?
- ?
- ?
- Spinous process
- cranial articulation process
- caudal articulation process
4?
5?
4- transverse process
5- transverse foramen
- Which vertebrae make up transverse canal in ruminants?
- horses?
- Ruminant transverse canal = c2-c6
- Horse= c1-c6
what is located in the transverse canal?
vertebral artery, vein and nerve
- what type of nerve is the vertebral nerve?
- innervation from what?
- post ganglionic sympathetic innervation from
- cervicothoracic ganglion
What is special about C7? (4 things)
- No transverse foramen
- Spinous process on C7 is higher than rest of cervical vertebrae
- body is shorter
- First rib can articulate with c7
1?
2?
- supraspinous ligament
- nuchal ligament
3?
4?
3- laminar part of nuchal ligament
4- Funicular part of nuchal ligament
5?
6?
7?
5- supraspinous bursa
6- cranial nuchal bursa
7- caudal nuchal bursa
- How is the nuchal ligament different in herbivores than dogs?
- what does it do?
- Nuchal ligament in dog terminates in C2
- Herbivore will go all the way to the head
- support the head and help raise the head
in horses which spinal bursas are present at birth?
supraspinous bursa
which bursa is more common in the horse?
- cranial or caudal nuchal bursa
cranial
what is special about the spinal bursas in the bovine?
- supraspinous developed in postnatal period
- Some might have cranial and caudal nuchal bursa but not common
- in what general location are the vertebral bodies in the neck of a herbivore?
- why is this important?
- ventral 1/3rd
- Right above is a triangular muscular area good for IM injections
- 1?
- 3?
- what species?
- 1- sternomandibularis
- 3- cleidomastoideus
- horse
- 1?
- 2?
- what species is this?
- sternomandibularis
- sternomastoideus
- bovine
3?
4?
5?
3- cleidocephalicus
4- cleidooccipitalis
5- cleidocephalicus
what is different about the neck muscles in a goat vs a bovine
- no sternomandibularis
- in goats it goes to the zygomatic arch, called sternozygomaticus
what is different about neck muscles in sheep?
do not have sterndomandibularis or sternozygomaticus
2?
3?
4?
2- cleidooccipitalis
3- cleidomastoideus
4- sternomandibularis
5?
10?
11?
5- sternomastoideus
10- sternothyroideus (lateral)
11- sternohyoideus (medial)
- 9?
- What is special about this one?
- 22?
- 9- omohyoideus
- origin is not from shoulder!!
- It is from fascia overlying from C3 and C4!!
- 22- omotransversaris
what happens when trying to medicate a bovine and hyperextending the neck
Cannot hyperextend neck because it will affect swallowing because of sternohyoideus
1?
2?
- Cleidomastoideus
- Sternomandibularis
- 10?
- what is different about this muscle in horses?
- Sternothyrohyoideus
- Will spit into Sternohyoideus and Sternothyroideus ver close to insertion
- 1?
- 2?
- what species?
- Dorsal: Cleidomastoideus
- Ventral: Sternomandibularis
- Horse!
3?
4?
5?
- 3- Deep: Omohyoideus
- Funicular part of nuchal ligament
- Laminar part of nuchal ligament
24?
25?
26?
27?
24- common carotid
25- jugular vein
26- Reccurrent laryngeal
27- Vagosympathetic trunk
- would you want to give an iv injection in this portion of the neck?
- why?
- no!
- jugular vein is close to common carotid
- can inject in common carotid (bad could kill the horse)
- can inject perivascular and cause nerve damage/ irritation to vagus and recurrent laryngeal
where would you want to give an IV injection in a horse in the neck area?
jugual vein near the C4 region as it has the deep omohyoideus seperating jugualar from common carotid, vagus, reccurent laryngeal
where is the esophagous located in the cervical portion relative to trachea
left!
- which species’s thymus is 1?
- at what age will it get smaller?
- 2?
- bovine
- 9 months
- pig
which species’s thymus is 3?
4?
3- horse
4- dog
- What is 1?
- 2?
- why is this important to know
- Nasolacrimal opening
- Nasal diverticulum-
- blind ended pouch, doesn’t go anywhere
- want to pass tubes ventral to avoid it
- ?
- ?
- alar cartilage
- lamina of the alar cartilage
What is special about the nostril of a horse?
- no lateral cartilage supporting it
- can dilate it to allow more air for breathing and exercise
what muscle dilates the nostril?
caninus muscle
11?
12?
13?
14?
11- Common nasal meatus
12- Dorsal nasal meatus
13- middle nasal meatus
14- ventral nasal meatus
- ?
- ?
- ?
- Dorsal nasal chonchae
- ventral nasal chonchae
- ethmoidal chonchae
- what are the blue lines refering too?
- why is this important?
- ethmoidal nasal chonchae is very vascular
- can be easily damaged by probes or nasal tubes
- What is another name for choncae?
- what nasal meatus do you want to pass a nasal tube?
- turbinates
- ventral nasal meatus