뒤로Anatomy UNIT 1- LECTURE 1# : Introduction to Anatomy and Structural Organization
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Anatomy is the study of the structure of living organisms, including both internal and external structures and how they relate to one another.
Gross Anatomy studies large body structures visible to the naked eye, such as the heart, skull bones, foot and organs
Systemic Anatomy studies entire systems working together to perform specific functions, like the cardiovascular or respiratory systems.
Microscopic Anatomy studies structures too small to see with the naked eye, including cytology (cells) and histology (tissues).
The Chemical Level is the most basic level where atoms combine to form molecules, such as water (H2O).
The Cellular Level consists of individual cells, the smallest units of life and basic units of structure and function.
The Tissue Level is groups of similar cells working together to perform a common function, including epithelial, connective, muscle, and nervous tissues.
The Organ Level consists of organs made of two or more tissue types working together, like the bladder with muscle, nervous, epithelial, and connective tissues.
The Organ System Level is a group of related organs working together to perform a common function, such as the circulatory system.
The Organism Level is the highest level where all organ systems function together to form a living human being.
Examples include the heart, skull bones, and foot, which are large structures visible without a microscope.
The cardiovascular system includes the heart, arteries, and veins working together to circulate blood.
The four main tissue types are epithelial, connective, muscle, and nervous tissue.
Smooth muscle in the bladder allows expansion to hold urine.
Nervous tissue controls urination by signaling muscle contraction and relaxation.
Connective tissue reinforces the walls of the bladder, providing structural support.
Atoms combine to form molecules, the chemical building blocks of life.
Cytology is the study of individual cells.
Histology is the study of tissues, groups of similar cells performing a function.
Cells are the smallest units of life and the basic units of structure and function in organisms.
What are the 3 subgroups for anotomy?
1- Gross anatomy
2- Systemic anatomy
3- Microscopic anatomy