mesencephalon
A primary oocyte
The three embryonic tissue layers of animals are ectoderm, mesoderm, and endoderm. These layers give rise to different specialized tissues and organs in the developing organism during the process of gastrulation. Ectoderm develops into structures like the skin and nervous system, mesoderm gives rise to muscles and bones, and endoderm forms the lining of the gut and associated organs.
Asexual reproduction does not lead to genetic variations while sexual reproduction leads to genetic variations. In asexual reproduction there is no limitation/restrictions for gametes to be fertilized.In sexual reproduction if either of the gametes do not function/not present then the possibility of reproduction becomes nil.Asexual reproduction gives rise to multiple daughter cells from mother cells while sexual reproduction normally gives rise to only two daughter cells.
Asexual reproduction does not lead to genetic variations while sexual reproduction leads to genetic variations. In asexual reproduction there is no limitation/restrictions for gametes to be fertilized.In sexual reproduction if either of the gametes do not function/not present then the possibility of reproduction becomes nil.Asexual reproduction gives rise to multiple daughter cells from mother cells while sexual reproduction normally gives rise to only two daughter cells.
There are three main divisions of the frogs brain. The fore-brain contains olfactory lobes, a pair of cerebral hemispheres, and unpaired diencephalon. The mid-brain of the frog contains of a pair of optic lobes. The hind-brain of the frog contains cerebellum and medulla oblongata.
MESENCEPHALON gives rise to the mid brain and aqueduct of the midbrain
Midbrain
Cerebral Aqueduct
The cerebral aqueduct connects the third and fourth ventricles in the brain.
The cerebral aqueduct (also known as the aqueduct of Sylvius) is the canal that connects the third and fourth ventricles of the brain. It is a narrow canal located in the midbrain, allowing for the flow of cerebrospinal fluid between these two ventricles.
The embryonic hindbrain gives rise to structures such as the medulla oblongata, pons, and cerebellum in the adult brain. These structures are critical for functions such as breathing, heart rate regulation, and coordination of movement.
cerebral peduncles,cerebral aqueduct,tectum,corpora quadriplegia,superior colliculi,inferior colliculi, and substantia nigra
sierra nevada via is the aqueduct that brings water to los angles
The cerebral aqueduct is the narrow conduit, between the third and the fourth ventricles in the midbrain, that conveys the cerebrospinal fluid and thereby prevents its potentially deadly buildup in the brain. Also called the aqueduct of Sylvius.
The cerebral aqueduct (aqueduct of Sylvius) connects the third and fourth ventricles of the brain. It is a narrow channel located in the midbrain that allows for cerebrospinal fluid to flow between these two ventricles.
cerebral aqueduct which traversing the midbrain divides it into two main parts:Tectum (smaller dorsal part), which consists of = 2 superior and 2 inferior colliculi2 cerebral peduncles (larger ventral part), which consist of = crus cerebri + substantia nigra + tegmentum
A short segment of the brainstem that connects the hindbrain and the forebrain. It contains the cerebral aqueduct and gives rise to two cranial nerves that control eye movements: cranial nerve 3(oculomotor) and 4 (trochlear).