anatomy LAB 1

Neurocranium (paired and unpaired):

Unpaired: Frontal, Occipital, Sphenoid, Ethmoid

Paired: Parietal, Temporal

Facial (paired and unpaired):

Unpaired: Vomer, Mandible

Paired: Lacrimal, Nasal, Maxilla, Zygomatic, Palatine, Inferior Nasal Conchae

“Now My Little Eyes See Z’s” will help you remember the bones across the orbit visible on the skull model:

Nasal 2, maxilla 1, Lacrimal 2, Ethmoid 1, Sphenoid 1, Zygomatic 2

______ _____sits in the sella turcica

Pituitary gland

The innervations of these eye muscles can be remembered using SO4 LR6 EE3

SO4 – Superior Oblique CN 4

LR6 – Lateral Rectus CN 6

EE3 – Everything Else CN 3

Aqueous humor (in anterior and posterior chambers) produced by the ciliary process and drained via the Canal of Schlemm, provides nourishment to avascular structures such as the lens and cornea, improper drainage can lead to ______

glaucoma

Sound waves are transmitted by the outer and middle ear to the cochlea (becomes impulses) which travel to the brain via the

vestibulocochlear nerve (CNVIII)

The brain is the part of the ____ that is located inside the skull. It has four lobes: ___/___/___/___

CNS, Frontal/ Parietal/ Occipital/ Temporal

The meningeal layers

Dura Mater/ Arachnoid Mater/ Pia Mater

CSF pathway: Produced by _______ _____ of the _____ _____ (from the ventricles into) the _____ ___ (then recycled by) _____ ______

ependymal cells of choroid plexus - subarachnoid space - arachnoid granulation

Cranial nerve I is which nerve and what is its function

Olfactory, smell

Cranial nerve II is which nerve and what is its function

Optic, vision

Cranial nerve III is which nerve and what is its function

Oculomotor, ocular muscles and pupillary constriction

Cranial nerve IV is which nerve and what is its function

Trochlear, move superior oblique

Cranial nerve V is which nerve and what is its function

Trigeminal nerve: moves muscles of mastication and tensor tympani

Cranial nerve V is which nerve and WHAT IS ITS DIVISIONS

Trigeminal
1 = ophthalmic (S)
2 = maxillary (S)
3 = mandibular (B)

Cranial nerve VI is which nerve and what is its function

abducens nerve, moves lateral rectus

Cranial nerve VII is which nerve and what is its function

Facial, mimetic muscles and stapedius

Cranial nerve VIII is which nerve and what is its function

Vestibulocochlear, hearing and balance

Cranial nerve IX is which nerve and what is its function

Glossopharyngeal, taste and pharyngeal muscles

Cranial nerve X is which nerve and what is its function

vagus, taste and levator veli palatini muscle

Cranial nerve XI is which nerve and what is its function

accessory nerve, sternocleidomastoid

Cranial nerve XII is which nerve and what is its function

hypoglossal, tongue muscles

Saliva produced in the parotid gland moves through the ____/ _____ ____

and enters the mouth at the ___ ____ ____

parotid /stensens duct, upper second molar

Scalene Gap contents (pass through):

subclavian artery and brachial plexus

Infrahyoid muscles (mnemonic/ muscles/ innervation)

TOSS the cervical ansa/ Thyrohyoid Omohyoid Sternohyoid Sternothyroid/ cervical ansa C1 C2 C3

The _____ _____ is the point on the retina with the lowest visual acuity

optic disc

Mimetic Muscles: Facial expression muscles innervated by _____

For example the levator labii superioris (side of face) or the stapedius (ear)

CN VII Facial

Muscles of Mastication: innervation/ muscles/ other muscles innervated by the same nerve

CN5 (trigeminal) 3 (mandibular)/ Masseter Temporalis Lateral and Medial Pterygoid/ tensor tympani