Only the brain will have brain tissue
Nervous tissue sends messages from the brain to the rest of the body. It consists of neurons that transmit electrical signals to communicate information throughout the body.
Brain tissue
The membranes surrounding the brain, called meninges, are protective layers that consist of three layers: the dura mater, arachnoid mater, and pia mater. These layers are tough and fibrous, designed to protect the delicate brain tissue beneath. In contrast, brain tissue is primarily composed of neurons and glial cells, responsible for processing and transmitting information throughout the body. The brain tissue has a complex structure that allows for its high functionality.
nerve tissue
nerve tissue
nerve tissue
Most Complex Structure in the Universe is Your Brain
nervous tissue
It can be called brain tissue, cerebral tissue or neural tissue (although the latter phrase can refer to nerve tissue anywhere in the body, and not just in the brain).
Nerve tissue is specialized to conduct electrical signals (impulses) from one part of the body to another. Nerve cells, or neurons, have unique properties that allow them to transmit these signals through a combination of electrical and chemical processes.
The four main types of body tissues are epithelial, connective, muscle, and nervous tissue. Epithelial tissue covers and protects body surfaces, such as skin and the lining of internal organs. Connective tissue provides support and structure, as seen in bones and tendons. Muscle tissue enables movement, while nervous tissue controls communication between body parts, like in the brain and spinal cord.
I believe it would be your brain stem