Brainstem

alt=3D Medical Animation Still Shot Showing Different Parts of Mid-Brain|thumb|261x261px|A 3D medical animation still shot showing different parts of the midbrain. The brainstem (or brain stem) is the posterior stalk-like part of the brain that connects the cerebrum with the spinal cord. In the human brain, the brainstem is composed of the midbrain, the pons, and the medulla oblongata. The midbrain is continuous with the thalamus of the diencephalon through the tentorial notch, and sometimes the diencephalon is included in the brainstem.

The pons (from Latin ) is the part of the brainstem that, in humans and other mammals, lies inferior to the midbrain, superior to the medulla oblongata, and anterior to the cerebellum.

The hindbrain, rhombencephalon (shaped like a rhombus) is a developmental categorization of portions of the central nervous system in vertebrates. It includes the medulla, pons, and cerebellum. Together they support vital bodily processes.

spinal trigeminal nucleus

peptide in Homo sapiens

The metencephalon is the embryonic part of the hindbrain that differentiates into the pons and the cerebellum. It contains a portion of the fourth ventricle and the trigeminal nerve (CN V), abducens nerve (CN VI), facial nerve (CN VII), and a portion of the vestibulocochlear nerve (CN VIII).

Part of the ventricular system

brain region controlling respiration

anterior portion of the cerebral peduncle which contains the motor tracts

The tegmentum (from Latin for "covering") is a general area within the brainstem. The tegmentum is the ventral part of the midbrain and the tectum is the dorsal part of the midbrain. It is located between the ventricular system and distinctive basal or ventral structures at each level. It forms the floor of the midbrain (mesencephalon) whereas the tectum forms the ceiling. It is a multisynaptic network of neurons that is involved in many subconscious homeostatic and reflexive pathways. It is a motor center that relays inhibitory signals to the thalamus and basal nuclei preventing unwanted body

ascending bundle of axons which cross in the brainstem

fibers in the brain stem

white matter structures within the brainstem's medulla oblongata

brain structure

region of gray matter cells in the subthalamus below the thalamus

collection of neurons in the brain stem nucleus ambiguous  gives rise to fibres of the glossopharyngeal (IX), vagus (X), and accessory (XI) nerves.

collection of brainstem nuclei related to hearing

Part of the brainstem

neural systems which act on vascular smooth muscle to control blood vessel diameter.

structure in the human brain