Neuroscience Practical 1 Flashcards
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Structures in the anterior cranial fossa
3 listed

- Frontal bone
- Ethmoid bone (Crista Galli and cribiform plate)
- Sphenoid bone (lesser wings)

Structures of the middle cranial fossa

- Sphenoid bone (greater wings of the sphenoid bone and hypophyseal fossa)
- Temporal Bone (petrous part, grooves for the middle meningeal artery)
- Optic canal
- foramen rotundum
- superior orbital fissure
- greater wing of the sphenoid bone
- carotid canal
- foramen spinosum
- foramen ovale
- foramen lacerum

Structures of the posterior cranial fossa

- Occipital bone (cerebellar fossa)
- internal acoustic meatus in the temporal bone
- jugular foramen
- groove for the sigmoid sinus
- foramen magnum
- hypoglossal canal
- groove for the transverse sinus

Cranial dura layers
- endocranium is the periosteum of the inner surface of the cranial bones
- the meningeal layer is analogous to dura covering the spinal cord
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foramina in cribriform plate
Olfactory nerves CN I
Optic Canal identify and what passes through

Optic Nerve (CN II)
Ophthalmic artery

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Superior orbital fissure and passes
5 listed

- Ophthalmic veins
- Oculomotor nerve
- Trochlear nerve
- Ophthalmic Nerve
- Abducens nerve

Foramen Rotundum and passes
Maxillary nerve (V2)
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Foramen Ovale and passes

Mandibular nerve (V3)

Carotid Canal and passes

Internal Carotid Artery

Foramen Spinosum and passes

Middle Meningeal vessels

Internal acoustic meatus and passes
- Facial Nerve (CN VII)
- Vestibulocochlear nerve (CNVIII)
Jugular foramen and passes

- Sigmoid sinus
- Glossopharyngeal nerve (CN IX)
- Vagus nerve (CN X)
- Accessory nerve (CN XI)

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Hypoglossal Canal and Passes

Hypoglossal Nerve (CN XII)

Foramen Magnum and Passes
4 listed

- vertebral arteries
- accessory nerves (spinal contribution to CN XI)
- Medulla oblongata and meninges
- Anterior and posterior spinal arteries

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Middle Meningeal Artery enters the cranial cavity through?
Foramen Spinosum
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Visceral compartment of the neck

anterior and contains
esophagus
trachea
thyroid gland

The vertebral compartment of the neck

posterior and contains the cervical vertebrae and muscles associated with the vertebral column

Two vascular compartments of the neck

- carotid artery
- internal jugular
- vagus nerve (CN X)

Investing fascia

surrounds all structures of the neck

Prevertebral fascia

surrounds the vertebral column and the deep muscles associated with the back

Pretracheal fascia

encloses the viscera of the neck

Carotid Sheath

surrounds the two major neurovascular bundles on either side of the neck

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