Where are the three parts of the brainstem connected and where is the brainstem?

The brainstem connects the spinal cord, diencephalon, and cerebellum.

Brainstem: includes the medulla, pons, and midbrain. There are also people who include diencephalon.

Gross structure of the brainstem The dorsal side of the cross-section of the midbrain contains the midbrain aqueduct, which is surrounded by gray matter, which is quadruplacent on the dorsal side and the cerebral foot on the ventral side. The brain foot is divided into two parts, the dorsal tegment and the ventral soles, by the substantia nigra. The pons is divided into two parts: the basal and the cover.

The basal base is ventral and contains a large number of transverse fibers, and the tegment is a direct continuation of the medulla oblongata dorsally. The medulla oblongata is covered except for the pyramid.

The internal structure of the brainstem retains the general structure of the spinal cord in many respects, such as gray and white matter and many ascending and descending fibers. But the brainstem has a number of features compared to the spinal cord: the first cranial nerve nucleus appears, both sensory and motil.

There are many motor and sensory transit nuclei, such as the red nucleus, which receives fibers from the cerebral cortex and emits fibers to project to the spinal cord to control movement, which is a motor transfer nucleus. The thin bundle nucleus and the cuneiform nucleus receive afferent fibers from the dorsal side of the spinal cord and project fibers to the thalamus, which belongs to the sensory middle transfer nucleus. As the brain and cerebellum continue to develop, so do the connections between the two through the brainstem, particularly at the base of the pons, which is an important transit station for the cerebrum-pons-cerebellar pathway.

Appearance of brainstem reticular structures.

The function of the brainstem is closely related to its location and its connection to the various parts of the central nervous system. The brainstem is first and foremost a transit point for many ascending and descending neural pathways, such as the spinal cord to the cerebellum, cerebellum to spinal cord, spinal cord to diencephalon, and brain to spinal cord. The second is that the brainstem controls many of the sensory and motor functions of the head and face, which is related to the cranial nerve from which it emanates.

Thirdly, it is the location of many important functional centers, such as respiration, heart rate, and blood pressure maintenance, which are controlled by the relevant centers of the brainstem. In the past, these parts were called life centers.

The brainstem is also associated with the maintenance of posture and the righting reflex in animals. The brainstem reticular structure also plays an important role in maintaining muscle tone and maintaining brain excitability.

Cranial nerves from the brainstem The brainstem gives rise to cranial nerves, which have three types of properties: sensory, motor, and mixed. According to the structure of cranial nerve distribution, cranial nerve fiber components can be divided into the following seven categories (see annex).

Among these 7 categories, general visceral afferents and efferents, general somatic afferents and somatic afferents are basically similar to the distribution of spinal nerves; Afferent fibers from the inner ear are called special somatic afferent fibers. The afferent fibers of the taste buds in the oral cavity are called special visceral afferent fibers. Some muscles of the head and neck are derived from the embryonic gills, so the efferent fibers that innervate these muscles are called special visceral efferent fibers.

Although the location of the nuclei that give rise to the first cranial nerve varies, a closer look shows that the sensory cranial nuclei are relatively close to the outside, due to the expansion of the fourth ventricle, which corresponds to the lateral extension of the wing plate of the neural tube. The motor cranial nucleus is closer to the medial.

Summary. The brainstem is located below the brain, between the spinal cord and the diencephalon, and is a smaller part of the central nervous system in an irregular columnar shape. The brainstem is composed of three parts: the medulla oblongata, the pons, and the midbrain.

The medulla oblongata is connected to the spinal cord below. The cranial nerves connected to the brainstem include oculomotor nerve, trochlear nerve, trigeminal nerve, abducens nerve, facial nerve, vestibulocochlear nerve, glossopharyngeal nerve, vagus nerve, accessory nerve, and hypoglossal nerve. The gray matter within the brainstem is dispersed into clumps of gray matter of varying sizes.

The nucleus is involved in receiving the activity of the organs innervated by afferent and efferent impulses in the periphery, as well as in the conduction of ascending and descending tracts. In addition, in the medulla oblongata and pons, there are reflex centers that regulate important physiological activities such as cardiovascular movement, breathing, swallowing, and vomiting. If these centers are damaged, it can cause serious disruptions to the heart rate, blood pressure, and even life-threatening.

What are the cranial nerves that connect to the brainstem? Where is it connected to the brainstem?

The brainstem is located below the brain, between the spinal cord and the diencephalon, and is a smaller part of the central nervous system in an irregular columnar shape. The brainstem is composed of three parts: the medulla oblongata, the pons, and the midbrain. The medulla oblongata is connected to the spinal cord below.

The cranial nerves connected to the brainstem include oculomotor nerve, trochlear nerve, trigeminal nerve, abduction and balance nerve, facial nerve, vestibulocochlear nerve, glossopharyngeal nerve, vagus nerve, accessory nerve, and hypoglossal nerve. The gray matter in the brainstem is dispersed into gray matter delay letter blocks of varying sizes. The nucleus is involved in receiving the activity of the organs innervated by afferent and efferent impulses in the periphery, as well as in the conduction of ascending and descending tracts.

In addition, in the medulla oblongata and pons, there are reflex centers that regulate important physiological activities such as cardiovascular movement, respiration, swallowing, and vomiting. If these centers are damaged, it can cause serious disruptions to the heart rate, blood pressure, and even life-threatening.

Precautions: Before the examination, you should rest quietly for about five minutes, and do not check after running, eating, cold drinks or smoking, these factors can lead to abnormal electrocardiogram, which can affect the judgment of the disease.

Summary. Hello, there are oculomotor nerves and trochlear nerves in the midbrain

The pons of the pons are the trigeminal nerve, abducens nerve, facial nerve, and vestibulocochlear nerve.

The medulla oblongata has glossopharyngeal nerves, vagus nerves, hypoglossal nerves, and accessory nerves.

The general rule is one sniff, two sights, three eye movements, four slides, five forks and six abductions. Seven sides, eight snails, nine tongues, ten labyrinthalms, eleven pairs, twelve sublinguals.

What are the cranial nerves that connect to the brainstem? Where is it connected to the brainstem?

Hello, there are oculomotor nerves in the midbrain, trochlear nerves, pons nerves, abducens nerves, facial nerves, vestibulocochlear nerves, glossopharyngeal nerves, vagus nerves, hypoglossal nerves, and accessory nerves. Seven sides, eight snails, nine tongues, ten vaso, eleven pairs of limbs, twelve defeats under the tongue.

Thank you. You are welcome.

The midbrain has oculomotor nerve, trochlear nerve, etc

The pons of the pons are the trigeminal nerve, abducens nerve, facial nerve, and vestibulocochlear nerve.

The medulla oblongata has glossopharyngeal nerves, vagus nerves, hypoglossal nerves, and accessory nerves.

The general rule is one sniff, two sights, three eye movements, four slides, five forks and six abductions. Seven sides, eight snails, nine tongues, ten labyrinthalms, eleven pairs, twelve sublinguals.

1. The position of the brainstem is a smaller part between the spinal cord and the diencephalon, which is located below the large peihe brain in the hand, and the medulla oblongata part of the brainstem is connected to the spinal cord, which is irregular columnar;

2. The brainstem is composed of three parts: medulla, pons, and midbrain from bottom to top;

3. The brainstem is responsible for motor respiration and some very basic physiological functions, and more nerve centers are located here.