2. Branchial motor efferent - 4
3. Visceral motor efferent - 4
- Sach somite gives rise to a particular set of muscles called its myotome.
So this is simple.
There are 3 pre otic somites giving rise to distinct groups of extraocular muscles supplied by their own cranial nerve.
Muscles -
All Extra ocular muscles except Lateral Rectus and Superior oblique.
Nerve -
Oculomotor nerve (III)
Nucleus -
Oculomotor nucleus in the Upper Midbrain.
Muscles -
Superior oblique.
Nerve -
Trochlear nerve (IV)
Nucleus -
Trochlear motor nucleus in the Lower Midbrain.
Muscles -
Lateral Rectus.
Nerve -
Abducent nerve (VI)
Nucleus -
Abducent motor nucleus in the Pons.
All muscles of the tongue except Palatoglossus
Nerve -
Hypoglossal I'm nerve (XII)
Nucleus -
Hypoglossal nucleus in the Medulla.
All muscles of mastication + TT (Tensor tympani + Tensor veli Palatini) + Digastric anterior belly. ( And Meckel cartilage)
Nerve -
Mandibular branch of Trigeminal
Nucleus -
All muscles of facial expressions + Stapedius + Digastric posterior belly. ( And Reichter cartilage)
Nerve -
Facial nerve (VII)
Nucleus -
Stylopharyngeus
Nerve -
Glossopharyngeal nerve (IX)
Nucleus -
- All muscles of Soft palate ( except Tensor veli which is up in the 1st arch) by the 4th. + cricothyroid muscle of Larynx.
Nerve -
4th arch - Superior laryngeal nerve of the Vagus.(X)
Nucleus -
Sphincter pupillae - Constricts pupil
Nerve -
Oculomotor nerve
Nucleus -
Lacrimal glands, nasal mucosal, sinuses mucosal glands and pharynx mucosal - Secretomotor.
Facial nerve (Greater Petrosal)
Nucleus -
Submandibular glands , sublingual glands - Secretomotor.
Facial nerve (Chorda tympani)
Nucleus -
Parotid gland
Glosspharyngeal nerve (Lesser Petrosal)
Nucleus -