Топ-100 ★ Free online encyclopedia. Did you know? page 126

★ Free online encyclopedia. Did you know? page 126


Subarachnoid cisterns

The subarachnoid cisterns are spaces formed by the openings in the subarachnoid space, an anatomical space in the meninges of the brain. The space between the two meninges, the arachnoid and Pia mater. These cisterns filled with cerebrospinal fluid.


Tela choroidea

Driver choroidea is the region of the meningeal Pia mater and the underlying ependymal that gives rise to choroid plexus in all four ventricles of the brain. Tela is Latin for fabric and is used to describe a web or membrane layer. Driver choroid ...


Dynamic response index

The dynamics of the reaction index is a measure of the likelihood of spinal injuries resulting from vertical impact loads, such as encountered in a military environment. DRE is a dimensionless quantity that is proportional to the maximum spinal c ...


Grey column

The grey column refers to a somewhat ridge-shaped mass of gray matter in the spinal cord. This presents as three columns: the anterior grey column, speakers, rear gray, and the lateral grey column of the figure to the right) that are visible in t ...


Intermediate horn cell


Linea splendens

White line Chia group of longitudinal fibers in the dorsal meninges, lying along the surface of the anterior median fissure of the spinal cord and forming a sheath for the anterior spinal artery.



In myelomere is the segment of spinal cord to which a given pair of dorsal and ventral roots is attached. Because the adult spinal cord do not stoop to the spine, the lower myelomeres not opposite their correspondingly numbered vertebrae. Thus my ...


Onufs nucleus

Kernel Onufs is a special group of neurons located in the ventral part of the anterior horn of the sacral region of the spinal cord of the person involved in the maintenance of micturition and defecatory continence, as well as muscular contractio ...


Posterior thoracic nucleus

Posterior thoracic nucleus, is a group of neurons found in the medial part of lamina VII, also known as the intermediate zone of the spinal cord. This is mainly from the cervical vertebra C7 to lumbar L3-L4 levels and is an important structure fo ...


Rexed laminae

In Rexed lamina form a system of ten layers of grey matter identified in the early 1950-ies Bror Rexed to label portions of the grey columns of the spinal cord. Similar to zone of Bradman, they are defined by their cellular structure rather than ...


Thecal sac

This purulent SAC and dural bag is a shell or tube of the Dura sheath that surrounds the spinal cord and cauda equina. On the purulent SAC containing cerebrospinal fluid that provides nutrients and buoyancy of the spinal cord. From the skull of t ...


Superior ganglion of vagus nerve

Superior ganglion of the vagus nerve, is the sensory ganglia of the peripheral nervous system. It is located within the jugular holes where the vagus nerve exits the skull. It is smaller and above the lower ganglion of the vagus nerve.


Autonomic ganglia of the head and neck


Somatic ganglia of the head and neck


Autonomic ganglion

Autonomic ganglion is a cluster of nerve cell bodies in the autonomic nervous system. Two types of sympathetic ganglion and parasympathetic ganglion.


Cervical ganglia

The cervical ganglia are paravertebral ganglia of the sympathetic nervous system. Preganglionic nerves from the thoracic spinal cord to enter in the cervical ganglia and synapses with postganglionic fibers or nerves. Cervical ganglion has three p ...


Inferior cervical ganglion

In the lower cervical ganglion is situated between the base of the transverse process of the last cervical vertebra and the neck of the first rib, on the medial side of the costocervical artery. Its shape is irregular, it is more in size than the ...


Parasympathetic ganglia


Sympathetic ganglia


Inferior ganglion of vagus nerve

The lower ganglion of the vagus nerve, is the sensory ganglia of the peripheral nervous system. It is located within the jugular holes where the vagus nerve exits the skull. Its more and less than the highest ganglion of the vagus nerve.


Autonomic nervous system

The autonomic nervous system, previously the autonomic nervous system is the division of the peripheral nervous system that supplies smooth muscle and glands, and thus affects the internal organs. The autonomic nervous system is a control system ...


Splanchnic nerves

The splanchnic nerves are paired visceral nerves, carrying fibers of the autonomic nervous system, and sensory fibers from viscera. All carry sympathetic fibers except for the pelvic splanchnic nerves that carry parasympathetic fibers.


Parasympathetic nervous system


Sympathetic nervous system


Vagus nerve


Cranial nerves

Cranial nerves-these are nerves that emerge directly from the brain, which is conventionally considered twelve pairs. Cranial nerves transmit information between the brain and parts of the body, mainly from areas of the head and neck including th ...


Abducens nerve

The abducens nerve the sixth cranial nerve, the person who controls the movement of the lateral rectus, responsible for the exterior look. This is a somatic efferent nerve.


Terminal nerve

The terminal nerve, or cranial nerve zero, was discovered by German scientist Gustav Fritsch in 1878 in the brains of sharks. It was first discovered in humans in 1913. Studies in 1990 showed that the terminal nerve is a common finding in the adu ...


Table of cranial nerves


Trochlear nerve

In trochlear nerve, also called the fourth cranial nerve or CN IV, is a motor nerve that innervates only one muscle: the upper oblique muscle of the eye, which acts through the pulley-like trochlea. In trochlear nerve is unique among cranial nerv ...


Cranial nerve nuclei


Trigeminal nerve


Celiac plexus

The celiac plexus and celiac plexus, also known as the solar plexus because of its radiating nerve fibers, is a complex network of nerves located in the abdomen, near where the celiac trunk, the mesenteric arteries and renal arteries branch from ...


Pancreatic plexus


Subsartorial plexus

In the subsartorial plexus is a plexus of nerves, which are under the Sartorius muscle. It is formed by: Cutaneous branches of the anterior obturator nerve. The saphenous nerve branch from the femoral nerve. Medial cutaneous nerve of thigh, branc ...


C tactile afferent

In humans, these TT have always been associated with pleasant touch behavior and are the most sensitive, with slow gentle strokes with the brush at a speed of 3 cm / s. CT neurons Project to the insular cortex of the brain, and the firing frequen ...


Chiasm (anatomy)

In the anatomy of the chiasm is the place where two structures cross, forming an X-shape. It can be: The tendon chiasm is the place where two tendons cross. For example, the tendons of the flexor digitorum superficialis muscle, and tendon of flex ...


Pelvic splanchnic nerves

Pelvic splanchnic nerves or Nervi erigentes are splanchnic nerves that arise from sacral spinal nerves S2, S3, S4 to provide parasympathetic innervation to the gut.


Reaction of degeneration

The lack of response of the muscle. Muscles in a state of irritation, but irritation from DC. Muscle contraction from the anode is higher than the cathode.


Beta motor neuron

Beta motor neurons, also called beta motoneurons, are a kind of lower motor neuron, along with alpha motoneurons and gamma motoneurons. Beta motor neurons Innervate intrafusal fibers of muscle spindles collaterals to extrafusal fibre - type slow- ...


Gamma motor neuron

Gamma motor neuron, also called gamma motor neuron is a type of lower motor neuron, which participates in the process of muscle contraction, and is about 30% of fibers going to the muscle. Like alpha motor neurons, their cell bodies located in th ...


Lower motor neuron

Lower motor neurons-motor neurons located in the anterior grey column, anterior roots or the cranial nerve nuclei of the brainstem and cranial nerves with motor function. All voluntary movement relies on spinal lower motor neurons that Innervate ...


Memory cells (motor cortex)

Memory cells are located in primary motor cortex, the area located at the rear of the frontal lobes of the brain. Their behavior is described Bizzy et al. as: In a subsequent washout epoch without the force field on the end link, the change in pr ...


Motor unit

A motor unit consists of motor neuron and skeletal muscle fiber is innervated by that motor neurons the axonal terminals. Groups of motor units often work together to coordinate the contractions of a single muscle, all motor units in a muscle are ...


Motor unit plasticity

The motor unit consists of a voluntary alpha motoneuron and all the muscle fibers of the team, which he manages, known as the effector muscle. The alpha motoneuron communicates with acetylcholine receptors on the motor plate of the effector muscl ...


Ramus communicans

Ramus communicans-the Latin term used for a nerve which connects two other nerves, and can be translated as "line of communication".


Spinal nerves


Interpeduncular nucleus

The Interpeduncular nucleus is an unpaired, ovoid cell on the basis of the tires of the midbrain. It is located in the midbrain, below the interpeduncular fossa. As the name suggests, interpeduncular nucleus lies between the legs of the brain.


Magnocellular red nucleus

The magnocellular red nucleus is the Rostral brain and involved in coordination. Together with the parvocellular red nucleus, MRN is the red nucleus. Due to the role it plays in the coordination of movements, magnocellular red nucleus may be invo ...


Midbrain tegmentum

In tires of the midbrain is the part of the brain that is divided into throat and clothes. These tires of the midbrain extending from the substantia nigra to the cerebral aqueduct in a horizontal part of the midbrain. It forms the floor on the mi ...

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