Which of the following adult brain structures originate from the same primary vesicle? Medulla oblongata and Midbrain Pons and Cerebellum Cerebellum and Midbrain
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The primary brain vesicles are the forebrain (prosencephalon), midbrain (mesencephalon), and hindbrain (rhombencephalon). Show more…
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Embryologically, the brain arises from the rostral end of a tube-like structure that quickly becomes divided into three major regions. Groups of structures that develop from the embryonic brain are listed below. Designate the embryonic origin of each group: hindbrain, forebrain, or midbrain. The medulla, pons, and cerebellum ________________________________ The diencephalon, including the thalamus, optic chiasm, and hypothalamus _________________________________ Location of the cerebral aqueduct _____________________________ The cerebral hemisphere _____________________________
Sri K.
86. The portion of the brain that gives rise to the medulla oblongata is derived from the secondary adult brain. The telencephalon gives rise to the cerebral cortex, while the diencephalon gives rise to the thalamus and hypothalamus. The myelencephalon gives rise to the medulla oblongata, and the metencephalon gives rise to the pons and cerebellum. The mesencephalon gives rise to the midbrain. The cerebral nucleus is the smallest unit of the brain located in the ventricles. The cluster of cell bodies located in the meninges is called the basal ganglia. The cell bodies of the peripheral nervous system are arranged in ganglia. The meninges of the brain are arranged from superficial to deep as follows: dura mater, arachnoid, and pia mater. 69. The meninges are composed of fibers of the pia mater, arachnoid, and dura mater. The pia mater is a delicate web of collagen and elastic fibers. 70. The meninges are composed of a thin layer of delicate areolar connective tissue that follows every contour of the brain surface. The layers of the meninges are the pia mater, arachnoid, and dura mater. 71. The brain ventricle sandwiched between the pons and the cerebellum is the fourth ventricle. The cerebrospinal fluid is formed by the choroid plexus and is absorbed by the arachnoid granulations. The septum pellucidum separates the lateral ventricles. The mesencephalic aqueduct connects the third and fourth ventricles.
The brain stem consists of these structures: a. medulla oblongata, pons, and midbrain b. medulla oblongata, cerebellum, and pons c. pons, midbrain, and cerebellum d. pons, midbrain, and thalamus
Keemin L.
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