Search results

Blood
...  Some scientists consider them to be forming elements instead of cells. There are about 250,000 - 450,000 platelets in one cubic millimeter of blood. The platelets are the only blood cells lacking Nuclei and they are able to move on their own just like leukocytes do. As a rule platelets survive in the blood for 5 - 9 days. In is important to notice that platelets are vital to the blood  ...

Skeletal Muscles
...  skeletal muscles are elongated muscular fibers. When you try to look at them under the microscope, you will see cylindrically-shaped cells. The cell is multi-nucleated; meaning, you will see several Nuclei even in a single cell. The location of the nucleus is on the side. When you look at the skeletal muscle on a cross-sectional view, you will better appreciate the numerous Nuclei found on the  ...

Hypothalamus
...  pleasure, rage, fear, and other emotions. This is why when we are unconscious, we fail to feel any of these sensations. Hormones controlled by the hypothalamus The hypothalamus, with its small Nuclei and with the help of the funnel-like infundibulum, is responsible in controlling the secretion of several hormones which perform important physiological functions in the body. Here are major  ...

Basal Nuclei
...  you feel your hand shaking when they are at rest? Do you experience hand tremors? If you are displaying these symptoms, then you have basal Nuclei disorder. The basal Nuclei are a group of cells that performs one of the vital motor functions of the body. It is tasked to coordinate, plan and organize motor movements. Without this group of Nuclei, you will not be able to bring a glass of water  ...

Cardiac Muscle
...  out. Intercalated discs are the most prominent features of the cardiac muscle. These are junctions that increase the point of communication among the cells. It has one or two centrally located Nuclei. If you use an electron microscope, you will see the presence of the thin and thick filaments. The combination of these myofilaments makes up the sarcomere, which is the contractile unit of  ...

Diencephalon
...  the parts of this tiny tissue. Thalamus The thalamus comprises the upper and majority parts of the diencephalon. It occupies 80% of its total mass. The thalamus is divided into two lobes. Several Nuclei make up each of the lobes of the organ. The basis of their naming depends on their position. You can have names such as the medial, lateral or central Nuclei. Together with the basal ganglia  ...

Medulla Oblongata
...  near the medulla oblongata is the fourth ventricle, the continuation of the spinal cord’s central canal which is located posteriorly. The medulla oblongata is composed of a white matter, vital Nuclei and also communication tracts which go up and down along the spinal cord, and in other parts of the brain. It also contains the fiber of the tracts that intersect in the other side of the  ...

Mesencephalon
...  the tectum (roof), and the tegmentum (covering). Within the mesencephalon is the quadrigemina. It deals with the reflexes of the auditory and visual stimuli, and also with the highly specialized Nuclei responsible for the posturing and the motor abilities of the body. The mesencephalon also houses the cerebral peduncles, and is comprised with bundle of nerve fibers. The Nuclei which is  ...

Neurons
...  are then responsible for the material transport in the cell. The endoplasmic reticulum on the other hand aids the action of the protein synthesis. Cells in the CNS are grouped together, calling it a Nuclei, and they are also found in a ganglia. - Dendrites are the small branches that reach out from the cell. It helps determine which stimuli to respond to (for the cells). It also aids the impulse  ...

Reticular Formation
...  reticular formation pertains to a complex network of nerve fibers and Nuclei within the brain stem. Its network aids in creating the reticular activating system, the one that is responsible for the cerebrum. This network is extended until the spinal cord, the pons, midbrain, thalamus and hypothalamus. Most of the structures in the brain send and receive fibers which go up and down within the  ...


© Copyright 2010-2014 MedicalTerms.info