Brain surgery

2021-02-12 12:00 AM

The white matter of the cerebral hemisphere occupies all the spaces between the cerebral cortex with the lateral ventricles and the basal nucleus; consists of 3 types of yarn: beam, conjugated and edge.

Encyclopedia consists of two cerebral hemispheres, weighing from 1000-2000g, accounting for about 85% of the total weight of the brain. This is the part of the brain that arises from the anterior brain, develops most strongly, bury the part of the brain in the middle of it.

Outward appearance

The longitudinal cleft divides the center of the brain into the right and left cerebral hemispheres. In front and after this dichotomy is complete, but in the middle part of the gap only up to the corpuscle.

The transverse cleft separates the two hemispheres of the cerebrum from the thalamus, central cerebellum and cerebellum. On the surface of each hemisphere, there are many slits and grooves that divide the brain into many lobes, each segment divided into many episodes.

Each hemisphere has 3 banks (upper, lower, inner) and 3 sides: top, outer, inner and lower surface.

Top outside

Figure. The cerebral surface

1. Frontal lobe 2. Central groove 3. occipital groove 4. Lateral groove 5. Temporal lobe

Convex, pressed against the dome, with grooves:

The central groove goes from the middle 1/3 of the upper hemisphere, sloping down and forward.

The lateral groove goes from the lower edge of the hemisphere, where the connection between the front quarter and the back 3/4 runs sloping up and back.

Short occipital groove, at 1/3 behind the upper hemisphere.

These grooves divide the outer surface of the cerebral hemisphere into 5 lobes of the frontal lobe, temporal lobe, parietal lobe, occipital lobe and island lobe.

The frontal lobe is located anterior to the central groove and above the lateral groove.

The temporal lobe is below the lateral groove, before the occipital lobe.

Occipital groove behind the occipital groove.

The parietal lobe lies behind the central groove, above the temporal lobe.

The lobe: buried in the valley of the lateral trench.

Inside side

This face is completely exposed only after cutting along the two hemispheres of the cerebrum and removing the brain stem and the brain. The following details are available:

Callus: is a piece of white matter running from front to back, connecting the two hemispheres of the cerebrum. The callus body consists of 4 parts from the posterior to the convex body, the body of the pillow and the beak of the callus.

Cerebral arch: located below the callus, running around the hippocampus and the caudal peduncle, is a strip of white matter consisting of a body in the middle, two columns in the front and two pillars behind.

Transparent septum: is a stretch membrane between the callus above and the lower dome of the brain, forming the inner wall of the two lateral ventricles.

Underneath

The lateral groove is continuous from the outer top of the hemisphere to the lower face and divides the lower surface into two parts:

The posterior part: large, consisting of the temporal and occipital lobes.

The anterior part: small, forming the orbital part of the frontal lobe, with a groove that divides this part into the inner and outer orbit. In the groove there is non-life, non-life; clouds run backwards divided into fringes.

Figure. The cerebral underside

1.Frontal lobe 2. Brain bridge 3. Cerebellum 4. Cerebellum

Figure. The inside of the brain

1.The hypothalamus 2. Pituitary 3. Brain 4. Callus 5. Hilltown 6. Central brain

Body shape

The brain follicle is composed of the grey outer shell of the cerebrum, the white matter and the inner ventricles, the underlying nucleus below.

White matter

The white matter of the cerebral hemisphere occupies all the spaces between the cerebral cortex with the lateral ventricles and the basal nucleus; consists of 3 types of yarn: beam, conjugated and edge.

Grey matter

Concentrated in the cerebral cortex and the basal nucleus.

The cerebral cortex covers the entire outer surface of the brain, with about 14 billion cells. The cerebral cortex is divided into many zones (about 52 regions) that undertake many separate functions.

The underlying causes of the brain include the striatum, the anterior wall and the almond. The striatum has a tail nucleus and a kernel.

Each cerebral hemisphere contains a lateral ventricle. The two side ventricles are connected to ventricle III through the ventricular aperture.