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Atlas of Human Embryos Chapter   Figure

C-2 centrum, C-2 neural arch (axis), C-2 spinal nerve, C-3 spinal ganglion, anterior cerebral artery, ectomeninx, epiglottis, external acoustic meatus, facial nerve (CN VII), glossopharyngeal nerve (CN IX), hypoglossal nerve (CN XII), inferior ganglion of vagus nerve (CN X), interventricular foramen, lateral palatine process, lateral ventricle, longissimus muscle, lower eyelid fold, optic stalk, orbitosphenoid, palatine fossa (pharyngeal pouch), paraphysis, pharyngeal arch 1 cartilage (Meckel), preoptic area and recess, primitive maxillary vein, primitive oral cavity, primitive pharynx, primordial cornu Ammonis, primordial hippocampal cortex (archipallium), primordial neopallial cortex, primordial piriform cortex (paleopallium), primordial vitreous body, semispinalis capitis muscle, spinal accessory nerve (CN XI), splenius muscle, striatal ridge, superior sympathetic ganglion, tongue, trabecular cartilage, trapezius muscle, upper eyelid fold, vertebral artery

A section through palatine fossa (second pouch) and the primitive oral cavity.

Observe:
1. The three subdivisions of the pallium or primordial cerebral cortex.
2. The caudal part of the lateral palatine process where it is lateral to the tongue.
3. The epiglottis caudal to the tongue projecting into the primitive pharynx.
4. The major nerves lateral to the primitive pharynx.
5. The extensor muscles of the neck.


Keywords: C-2 centrum, C-2 neural arch (axis), C-2 spinal nerve, C-3 spinal ganglion, anterior cerebral artery, ectomeninx, epiglottis, external acoustic meatus, facial nerve (CN VII), glossopharyngeal nerve (CN IX), hypoglossal nerve (CN XII), inferior ganglion of vagus nerve (CN X), interventricular foramen, lateral palatine process, lateral ventricle, longissimus muscle, lower eyelid fold, optic stalk, orbitosphenoid, palatine fossa (pharyngeal pouch), paraphysis, pharyngeal arch 1 cartilage (Meckel), preoptic area and recess, primitive maxillary vein, primitive oral cavity, primitive pharynx, primordial cornu Ammonis, primordial hippocampal cortex (archipallium), primordial neopallial cortex, primordial piriform cortex (paleopallium), primordial vitreous body, semispinalis capitis muscle, spinal accessory nerve (CN XI), splenius muscle, striatal ridge, superior sympathetic ganglion, tongue, trabecular cartilage, trapezius muscle, upper eyelid fold, vertebral artery

Source: Atlas of Human Embryos.