Neuro Final Anatomy

Foramen where at least 3 nerves come out of

Orbital fissue

Where does CN 7 come from

Internal acoustic meatus, stylomastoid foramen

What nerve is just distal to the stifle join and there is nothing protecting the nerve

Common Fibular

Two parts of the nuchal ligament

Nochal Funiculus - Cord like from external occipital protuberance to the thoracic spinous processes
Nuchal laminae - deep part of the ligament

SA vs LA for Nuchal ligament

Canines only have the funicular part

The ligmanet that gos between the ehads of the ribs that revents IVD from happening in the thoracic cavity

intercapital ligametn

Femoral nerve INN

quadriceps, satoris, illisposis

Femoral nerve function

extends stiffle

Musculocutanoues INN

Biceps brachaii, biceps brachialis

Musculocutanoeus function

flexes elbow

What nerve provides sympathetic INN to the neck

vertebral nerve

Hypogastric nerve - what kind of nerve

sympathetic, post ganglionic

Major and minor splanchich nerve - hat kind of nerve

Sympathetic Pre ganglion

Vagus - what kind of nerve

Parasympathetic, preganglion until the terminal ganglion located directly within or on the surface of target organs adn then become post ganglionic

Retro laryngeal what kind of nerve

somatic, pre ganglion

Middle cervical ganglion and cervical ganglion what kind of nerve

sympathetic and what emerges is post ganglionic

Anterior segment contains

cornea, iris, lens, aqueous humor

POsterior segment contains

viterous humor, retina, optic nerve

Canal schlemm

drainage pathway for aqueous humor

3 main layers of eye

Outer fibrous - sclaear and cornea
Middle vascular layer (uvea) - iris, ciliary body, choroid
Inermost neural layer - retina

What layer is most responisble for vision

innermost neural

What layer provides blood supply

Middle vascular

Extra ocular muscles are INN by what

CN 6 (Abducens) - Lateral rectus
CN 4 (Trochlear) - dorsal oblique
CN 3 (Oculomotor) - Dorsal, ventral, medial rectus

Structure that lets the CSF go from the lateral to the third ventricle

interventricular foramen

Strucutre that carries CSF from the third to the fourth ventricle

Cerebral aqueduct

Where is CSF produced

Choroid plexus

Strucutres involed in the production of CSF

Choroid plexus, lateral third and 4th ventricles

Falx Cerebri

in the longitudinal fissure and is a vertical fold of dura mater that separates the two cerebral hemispheres

Three layers of the menigines

Dura → arachnoid → Pia

Epidural space vs subdural space

the region outside the dura amter containing fat adn veins
Subdural space - potential space between the dura and arachnoid mater

what forms the foundation fo the cheek

Bucinator and massater

Muscles that is involved in moving the hyoid process forward in swallowing

GeniohyoidM

Muscle that is involved in dilating the nostrils in equine

Dilator naris apicalis musclesI

In equine what nerve block when tou need to work on the eye

Auriculopalperbral brnach of the facial nerve

Cornual artery in ruminats is a branch of the (important in dehorning)

Superficial temporal

In equine the vein that you use for veinpuncture

Transverse facial nerve

What other strucutres are near the lingual artery adn hypoglossal nerve

Carotid sheath structures, occipital artery, digastric muscle, hyoglossus muscle, lingual nerve

Equine, during lateral recumbency what nerve might be affected from this postion

Buccal brnaches of the facial nerve

If the infraorbital nerve/foramen is blocked what is desnesitized

Contains the infraorbital nerve
Desentizes the ipsilateral upper lip, nostril, canine teeth, incisors, and 1st/2d premolars

Motor INN to the tounge

Hypoglossal CN12

Optic nerve vs optic chiasm vs optic tract

Optic nerve - sesory info from the eye
Optic chiasm- where the two optic nerves come together adn then switch sides
Optic tract - the section after the optic chiasm that contiunes the transmission of snesory info from the eye

Boundaries of the hypothalamus

Dorssaly - hypothalmic sulcus
Rostrally - lamina terminalis
Caudally - mammary body
Ventrally - optic chiasm and optic tracts

Facial nerve where does it come from

Medulla oblongata, internal acoustic meatus, stylomastoid foramen

Facial nerve what does it do

Motor - muslces of facial expression
Sensory - rostal surface of ear (auriculopalpebral branch), Lips (Buchal branch)
Parasympathetic - lacrimal, nasal, and salivary glands

Nerve that INN the cervical neck muscles

Cervical plexus
Cranial nerve XI

The fibers that go between the 2 hemispheres

Corpus Callosum

The osseous strucutre that is in the transverse fissure

Tentorium cerebelli

What forms your messencephalon

Tectum, Crus cerebri, Cerebral peduncle