pinealocytes + neuroglial cells + with rich network of blood vessels
Endocrine
The study of the structures that make up the human body, including the brain, is known as anatomy. Anatomy focuses on understanding the shapes, sizes, and locations of different body parts and how they relate to each other. It is an important field in medicine and biology for diagnosing and treating various health conditions.
There are several thousand of them. You need to be more specific
lateral geniculate body : relay nucleus for visual impulsesmedial geniculate body : relay nucleus for auditory impulses
RootsStemLeavesTerminal BudAdaptions that allow plants to live on land:CuticleStoma(ta)Vascular SystemLigninPollen GrainSeed
The rigid structures that make up the skeleton are bones. The human skeleton is composed of 206 bones that provide support, protection, and leverage for movement. These bones are connected by joints, ligaments, and tendons to form a complete framework for the body.
Anatomical structures refer to the parts and components that make up an organism's body, such as organs, tissues, and bones. Understanding these structures helps researchers study the function and organization of living organisms.
The tissues that make up the body are collectively known as the body's tissue system. This includes epithelial, connective, muscular, and nervous tissues, which work together to form organs and structures within the body.
Hyphae
The order of structures of the human body from smallest to largest are:cellgroups of specialized cells make a certain type of tissue, for example, muscle tissuea group of alike tissues make up an organa group of organs that all have a similar function make up an organ systemall of the organ systems make up the organism, e.g. the human body
Thread like structures in fungi are called hyphae .
Function of the pineal body/gland is endocrine. This contributes the the alertness or consciousness of one's self and produces "melatonin" which regulates the sleep/wake patterns. The name derives from its shape. It produces melatonin that helps to regulate sleep/wake functions, and even seasonal functions (e.g. more wakefulness and productivity in the summer, versus more restfulness - and, in some animals, hibernation - in the winter).