Examples of cerebral aqueduct in the following topics:
- The midbrain is located below the cerebral cortex and above the hindbrain placing it near the center of the brain.
- It extends from
the substantia nigra to the cerebral
aqueduct (also called the ventricular mesocoeli).
- The cerebral peduncles assist in motor movement refinement,
motor skill learning, and converting proprioceptive information
into balance and posture maintenance.
- Throughout embryonic development, the cells within the
midbrain continually multiply and compress the still-forming aqueduct of sylvius
- Partial or total obstruction of the cerebral aqueduct
during development can lead to congenital
- The cavities of the
are called lateral ventricles, or first and second ventricles.
fluid is produced by modified ependymal cells of the choroid plexus
found in all components of the ventricular system except for the cerebral
aqueduct and the posterior
and anterior horns of the lateral ventricles.
- Cerebrospinal fluid is produced by modified ependymal cells of the choroid plexus found in all components of the ventricular system except for the cerebral aqueduct and the posterior and anterior horns of the lateral ventricles.
- CSF flows from the lateral ventricles via the foramina of
Monro into the third ventricle, and then the fourth ventricle via the cerebral
aqueduct in the brainstem.
- the cerebral aqueduct is
formed from the part of the neural canal that does not expand and
remains the same at the level of the midbrain superior to the fourth ventricle.
- The tectum, pretectum, cerebral peduncle, and other structures develop out of the mesencephalon, and its cavity grows into the mesencephalic duct (cerebral aqueduct).
- The nucleus of the trochlear nerve is located in the caudal mesencephalon beneath the cerebral aqueduct.
- It constitutes the content of all intra-cerebral (inside the brain, the cerebrum) ventricles, cisterns, and sulci (singular sulcus), as well as the central canal of the spinal cord.
- It acts as a cushion or buffer for the cortex, providing a basic mechanical and immunological protection for the brain inside the skull and serves a vital function in cerebral autoregulation of cerebral blood flow.
- It circulates from the lateral ventricles to the foramen of Monro (interventricular foramen), third ventricle, aqueduct of Sylvius (cerebral aqueduct), fourth ventricle, foramen of Magendie (median aperture), foramina of Luschka (lateral apertures), and the subarachnoid space over the brain and the spinal cord .
- When CSF pressure is
elevated, cerebral blood flow may be constricted.
- (1) posterior medullary velum (2) choroid plexus (3) cisterna cerebellomedullaris of subarachnoid cavity (4) central canal (5) corpora quadrigemina (6) cerebral peduncle (7) anterior medullary velum (8) ependymal lining of ventricle (9) cisterna pontis of subarachnoid cavity
- Cerebral and spinal white matter do not contain dendrites, which can only be found in grey matter along with neural cell bodies, and shorter axons.
- Commissural tracts cross from one cerebral hemisphere to the other through bridges called commissures.
- Aggregates of gray matter such as the basal ganglia and brain stem nuclei are spread within the cerebral white matter.
- The fluid-filled cerebral ventricles (lateral ventricles, third ventricle, cerebral aqueduct, and fourth ventricle) are also located deep within the cerebral white matter.
- Cerebral circulation is the movement of blood through the network of blood vessels supplying the brain, providing oxygen and nutrients.
- Cerebral circulation refers to the movement of blood through the network of blood vessels supplying the brain.
- Since the brain is very vulnerable to compromises in its blood supply, the cerebral circulatory system has many safeguards.
- The amount of blood that the cerebral circulation carries is known as cerebral blood flow (CBF).
- Cerebral blood vessels are able to change the flow of blood through them by altering their diameters.
- The frontal lobe contains most of the dopamine-sensitive neurons in the cerebral cortex.
- The two occipital lobes are the smallest of the four paired lobes in the human cerebral cortex.
- The temporal lobe is a region of the cerebral cortex located beneath the lateral fissure on both cerebral hemispheres of the mammalian brain.
- The superior temporal gyrus includes an area where auditory signals from the ear first reach the cerebral cortex and are processed by the primary auditory cortex in the left temporal lobe.
- Distinguish between the frontal, temporal, parietal, and occipital lobes of the cerebral cortex
- The cerebrum contains the cerebral cortex (of the two cerebral hemispheres), as well as several subcortical structures, including the hippocampus, basal ganglia, and olfactory bulb.
- In larger mammals, the cerebral cortex is folded into many gyri and sulci, which has allowed the cortex to expand in surface area without taking up much greater volume.
hemisphere of the mammalian cerebral cortex can be broken down into
four functionally and spatially defined lobes: frontal, parietal,
temporal, and occipital.
- Speech and language are
mainly attributed to parts of the cerebral cortex.
- The cerebral cortex is the outer layer depicted in dark violet.
- Buried deep in the white matter of the cerebral cortex are
interconnected subcortical masses of cerebral gray matter called basal nuclei
(or basal ganglia) that are involved in motor control.
- The basal nuclei receive
input from the substantia nigra of the midbrain and motor areas of the cerebral
cortex and send signals back to both of these locations.