Which of the following structures give rise to pharyngeal (branchial) arches cranial nerves O Neural tube Neural crest cells Pharyngeal pouch endoderm Pharyngeal cleft ectoderm
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![Which of the following structures give rise to pharyngeal (branchial) arches cranial nerves
O Neural tube
Neural crest cells
Pharyngeal pouch endoderm
Pharyngeal cleft ectoderm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fee287c35-80c0-4f7b-9f57-37c6ecc47499%2Ffe12ada9-cf18-455c-929f-ecfe810a1764%2Fq5ct5v6_processed.jpeg&w=3840&q=75)
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- Ectodermal Derivatives of the 10 mm Pig Embryo Epidermis: This is a single layer of epidermal ectoderm cells covering the entire embryo. Nervous System Brain As in the 72- hour chick embryo, the first sections in the series, cut through the rhombencephalon due to the cranial flexure. Try to identify first all the major divisions of the pig brain. Myelencephalon: the part of the rhombencephalon tapering to the spinal cord. It has a roof of thin, non-nervous blood vesssels of the posterior choroid plexus and a large wide ventricle (IV) or the myelocoel. Metencephalon: the thick walled and thick roofed anterior part of the hindbrain. It gives rise to the cerebellum dorsally and the pons ventrally. Mesencephalon: the rounded region of the brain containing the mesocoel or the aqueduct of Sylvius. Diencephalon: By tracing the slides posteriorly, the mesencephalon gives way to the diencephalon, a laterally compressed region containing the third ventricle that communicates the telocoels of…Ectodermal Derivatives of the 10 mm Pig Embryo Epidermis: This is a single layer of epidermal ectoderm cells covering the entire embryo. Nervous System Brain As in the 72- hour chick embryo, the first sections in the series, cut through the rhombencephalon due to the cranial flexure. Try to identify first all the major divisions of the pig brain. Myelencephalon: the part of the rhombencephalon tapering to the spinal cord. It has a roof of thin, non-nervous blood vesssels of the posterior choroid plexus and a large wide ventricle (IV) or the myelocoel. Metencephalon: the thick walled and thick roofed anterior part of the hindbrain. It gives rise to the cerebellum dorsally and the pons ventrally. Mesencephalon: the rounded region of the brain containing the mesocoel or the aqueduct of Sylvius. Diencephalon: By tracing the slides posteriorly, the mesencephalon gives way to the diencephalon, a laterally compressed region containing the third ventricle that communicates the telocoels of…Many older people have difficulty with mobility and selfmaintenance tasks such as dressing and cooking. Namesome organ systems whose senescence is most relevantto these limitations
- The brain and spinal cord develop from a longitudinal ectodermal channel called the _____.Figure 29.22 Which of the following statements about the parts of an amniotic egg are false? The allantois stores nitrogenous waste and facilitates respiration. The chorion facilitates gas exchange. The yolk provides food for the growing embryo. The amniotic cavity is filled with albumen.The ribs form from the ___________ . notochord neural plate neural tube somites
- In protostomes and deuterostomes, the space between the endoderm and the ectoderm is important because:The peritoneum (as well as the pleurae and pericardium) of an adult body arose from the layer of a developing embryo. O at this point in the semester, I really don't care! (don't pick this one, even if it's true) ectoderm endoderm mesodermWhich of the following structures separates the caudate and putamen? medial lemniscus internal capsule thalamus superior peduncle
- Which of the following statements is true: O invagiantion is folding of cells that happens early in the embryonic development O balstocoel is the space in the morula o deuterostome animals will have the mouth first O protostome animals will have the mouth second enertocelous means the splitting of cells in the ectododerm layer which becomes endodermEndodermal Derivatives of the 10 mm Pig Embryo (SEE IMAGE) Position your slides such that the spinal cord appears uppermost in the field. Bear in mind that the position of the endoderm structures in the 72-hour chick embryo is essentially similar to that of the structures in thethe pig embryo although at this time there is no more midgut and anterior posterior intestinal portals. Concentrate on the structures that are appearing for the first time in the pig. Digestive and Respiratory Systems First pharyngeal or hyomandibular pouch and furrow: In a frontal section passing through the pharynx, the auditory vesicle and the ventralmost part of the hindbrain, observe the first pharyngeal pouch, with its thick endoderm lining and the furrow in the thin ectoderm. Note if there is a closing plate. At the anterior border of the pouch and furrow is the first visceral or mandibular arch just like in the chick embryo. Find the future Eustachian tubes, derivatives or the first pouch. Second…Endodermal Derivatives of the 10 mm Pig Embryo (SEE IMAGE) Position your slides such that the spinal cord appears uppermost in the field. Bear in mind that the position of the endoderm structures in the 72-hour chick embryo is essentially similar to that of the structures in thethe pig embryo although at this time there is no more midgut and anterior posterior intestinal portals. Concentrate on the structures that are appearing for the first time in the pig. Digestive and Respiratory Systems First pharyngeal or hyomandibular pouch and furrow: In a frontal section passing through the pharynx, the auditory vesicle and the ventralmost part of the hindbrain, observe the first pharyngeal pouch, with its thick endoderm lining and the furrow in the thin ectoderm. Note if there is a closing plate. At the anterior border of the pouch and furrow is the first visceral or mandibular arch just like in the chick embryo. Find the future Eustachian tubes, derivatives or the first pouch. Second…
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