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Abdomen

From Simple English Wikipedia, the free encyclopedia

Anatomy of the human abdomen

The abdomen is the part of the body that is between the chest and the thigh. It contains (has in it) the abdominal muscles and many organs. Some of the organs in the abdomen are:

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The cranial nerves

Terminal (CN 0)

Nuclei
- septal nuclei
Course
- no significant branches

Olfactory (CN I)

Nuclei
- anterior olfactory nucleus
Course
- olfactory bulb
- olfactory tract

Optic (CN II)

Nuclei
- lateral geniculate nucleus
Course
- optic chiasm
- optic tract

Oculomotor (CN III)

Nuclei
- oculomotor nucleus
- Edinger–Westphal nucleus
Branches

Trochlear (CN IV)

Nucleus
Branches
- no significant branches

Trigeminal (CN V)

Nuclei
- PSN
- spinal trigeminal nucleus
- MN
- TMN
Course
- trigeminal ganglion
Branches

Abducens (CN VI)

Nucleus
Branches
- no significant branches

Facial (CN VII)

Near origin	Intermediate nerve Geniculate
Inside facial canal	Greater petrosal pterygopalatine ganglion Nerve to the stapedius Chorda tympani lingual nerve submandibular ganglion
At stylomastoid foramen	Posterior auricular Suprahyoid digastric stylohyoid Parotid plexus temporal zygomatic buccal mandibular cervical
Nuclei	Facial motor nucleus Solitary nucleus Superior salivary nucleus

Vestibulocochlear (CN VIII)

Glossopharyngeal (CN IX)

Before jugular fossa	Ganglia superior inferior
After jugular fossa	Tympanic tympanic plexus lesser petrosal otic ganglion Stylopharyngeal branch Pharyngeal branches Tonsillar branches Lingual branches Carotid sinus
Nuclei	Nucleus ambiguus Inferior salivatory nucleus Solitary nucleus

Vagus (CN X)

Before jugular fossa	Ganglia superior inferior
After jugular fossa	Meningeal branch Auricular branch
Neck	Pharyngeal branch pharyngeal plexus Superior laryngeal external internal Recurrent laryngeal Superior cervical cardiac
Thorax	Inferior cardiac Pulmonary Vagal trunks anterior posterior
Abdomen	Celiac Renal Hepatic Anterior gastric Posterior gastric
Nuclei	Nucleus ambiguus Dorsal nucleus of vagus nerve Solitary nucleus

Accessory (CN XI)

Nuclei
- nucleus ambiguus
- spinal accessory nucleus
Cranial
Spinal

Hypoglossal (CN XII)

Nucleus
Branches
- lingual

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Torso

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