I need to know where all of this structures are located in the brain: (Metenceph
ID: 85252 • Letter: I
Question
I need to know where all of this structures are located in the brain: (Metencephalon, Telencephalon, Diencephalon, Mesencephalon or Myelencephalon and their role (briefly).
15 Plate 1 Structures 1 frontal cortex 2 olfactory bulbs 3 periamygdaloid cortex. 4 optic chiasm 5 lateral olfactory tract 6 medial olfactory tract 7 pituitary gland (not seen in Plate 1) 8 mammillary bodies 9 cerebral peduncles 10 pons 11 trapezoid body 12 pyramidal tract 13 olive Plate 1 13 14 olfactory nerve (not seen in picture) 15 optic nerve 16 occulomotor nerve 17 trochlear nerve 18 trigeminal nerve 19 abducens nerve 20 facial nerve 21 vestibulo-acoustic nerve (not seen in Plate 1) 22 glossopharyngeal nerve (not seen in Plate 1) 23 vagus nerve (not seen in Plate 1) 24 spinal accessory nerve 25 hypoglossal nerve 26 optic tractExplanation / Answer
Metencephalon- It is part of hind brain and forms the pons cerebellum. The nuclei of the pons relay signals from the forebrain to the cerebellum. This part is associated with respiration, sleep, swallowing and bladder control. Other functions include controlling hearing and equilibrium, facial expressions and movement of the eye.
Telencephalon- It is part of mid brain and is derived from it. It gives rise to cerebral cortex and basal ganglia. Cerebral cortex is associated with intelligence, planning and organization, language processing, sensory information processing, motor function, touch sensation. Basal ganglia plays a role in motivation, decision making and working memory.
Diencephalon- It is part of forebrain from which the thalamus and hypothalamus is derived. It is associated with sleep, consciousness and sensory interpretation.
Mesencephalon- It gives rise to mid brain. As a part of the central nervous system, it controls vision and hearing, sleep/wake, alertness as well as temperature regulation.
Myelencephalon- It is part of hindbrain and gives rise to medulla oblongata, Its functions include regulating the heart rate and blood pressure, breathing and reflex actions like coughing, sneezing and vomiting.