What do basal and alar plates become?

Cells in the alar plate become afferent (sensory) neurons and form the dorsal (posterior) horn of the spinal cord. Cells in the basal plate become efferent (motor) neurons and form the ventral (anterior) horn of the spinal cord. The lumen of the neural tube becomes the central canal of the spinal cord.

What is the basal plate of a plant?

The basal plate is the compact, fleshy stem found in bulbs. It is the location where the new organs form on the bulb. Meristems that form on the basal plate include those for vegetative and flowering stem, new buds that will form offsets, and the root system that arises as adventitious roots.

What is alar and basal lamina?

Anatomical terminology. The alar plate (or alar lamina) is a neural structure in the embryonic nervous system, part of the dorsal side of neural tube, that involves the communication of general somatic and general visceral sensory impulses. The caudal part later becomes sensory axon part of the spinal cord.

Is the dorsal root ganglion derived from the alar plate or the basal plate?

The dorsal nerve root ganglion is a sensory ganglion (a cluster of pseudounipolar neurons) [it grows centrally into the alar plate].

What derives from alar plate?

Only the alar plate exists cranial to the midbrain: The derivatives of the alar plate give rise to the sensory and integrative functions of the thalamus, hypothalamus, basal ganglia, and telencephalon.

What is example of corm?

The corm contains a basal plate (bottom of bulb from which roots develop),thin tunic and a growing point. Examples of plants that develop from corms include gladiolus, crocus, and autumn crocus.

What is bulb and corm?

Bulbs are structurally short stems with fleshy leaves or leaf bases. Corms are rounded, underground storage organs consisting of a swollen stem base covered with scale leaves. Types. Bulbs are modified leaves that store nutrients. Corms are swollen stem bases.

Which of the following basal nuclei is located in the cerebrum?

The major structures of the basal nuclei that control movement are the caudate, putamen, and globus pallidus, which are located deep in the cerebrum. The caudate is a long nucleus that follows the basic C-shape of the cerebrum from the frontal lobe, through the parietal and occipital lobes, into the temporal lobe.

What is posterior root ganglion?

A dorsal root ganglion (or spinal ganglion; also known as a posterior root ganglion) is a cluster of neurons (a ganglion) in a dorsal root of a spinal nerve. The cell bodies of sensory neurons known as first-order neurons are located in the dorsal root ganglia.

What is basal plate in placenta?

The basal plate is a synonym for the maternal side of the placenta. The fetal side of the placenta is termed the chorionic plate. Some pathologies and processes are localized to the basal plate, and evaluation of the basal plate is a part of placental grading.

How is the basal plate separated from the alar plate?

The basal plate (basal lamina) is separated from the alar plate (alar lamina) by the sulcus limitans (unlabeled). ^ a bBruce M. Carlson (2004).

Which is part of the alar plate does Rexed have?

Sensory portion: The alar plate gives rise to Rexed’s laminae I- IV. Motor portion: The basal plate gives rise to Rexed’s laminae VII-X. The early post- neurulation neural tube develops into dorsal and ventral halves – the alar and basal plates respectively.

Is the alar plate part of the spinal cord?

[edit on Wikidata] The alar plate (or alar lamina) is a neural structure in the embryonic nervous system, part of the dorsal side of neural tube, that involves the communication of general somatic and general visceral sensory impulses. The caudal part later becomes sensory axon part of the spinal cord.

How old is the alar plate in the brain?

Diagram to illustrate the alar and basal laminæ of brain vesicles. aged about four and a half weeks. dorsal gray of the spinal cord, and develops into the sensory nuclei of cranial nerves V, VII, VIII, IX, and X. The inferior olivary nucleus, mesencephalic nucleus of V, and main sensory nucleus of V