ATI NR293 Ati-Teas-6-all-sections-prep-everything-you-need-100-guarantee.

ATI NR293 Ati-Teas-6-all-sections-prep-everything-you-need-100-guarantee. ATI TEAS ALL SECTIONS PREP ANATOMY & PHYSIOLOGY Anatomy: is what you see with your eyes in the human body. Microscopic Anatomy: examines cells and molecules.  Cytology: study of cells.  Histology: study of tissues. Physiology: is the study of functions of anatomical structures. *Smallest living is a CELL. *Smallest organisms is a ATOM. Levels of Hierarchy Atom- the most basic complete unit of an element. Molecule- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. Organelles- are cells parts that function within a cell. Cells- the basic structural unit of an organism from which living things created. Is one individual cell. Tissues- a group of cells with similar structure that functions together as a unit, but at a lower level than organs.