Basic
Human Anatomy Part – 01
What is Human Biology ?
o
Studying Anatomy & Physiology
What is Anatomy ? main
two type
o
Study of the organization of body parts is
called Anatomy
o
the parts we can see naked eye- Gross Anatomy or
Macroscopic Anatomy
o
the part can see only from Microscope - Microscopic
Anatomy
o
What is Histology?
o
The study of microscopic anatomy
What is Physiology ?
o
The study of the way the different parts of the
body work and their overall function
What percentage of
human body contain water?
o
60%
What is Biochemistry ?
o
The study of chemicals and their activities in
the body
What is the purpose of
life?
o
The survival of the organism and sustenance of
the species are the basic functions (purpose) of life
What is Basic Unit of
Living Organisms – Cell Collections of similar
type of cells called – Tissue Organization of
different tissue types to carry out a specific function – Organ
Several Organs connected to provided one or more particular
function in the overall human body – System Collection of Systems
called – Human body What is zygote ?
o
formed by mothers ovum (egg) and the father’s
sperm cell (seed) other all cells originate from this cell
Approximately How many
cells in human body ?
o
100 trillion cells in an adult human body
What are The basic
functions of the cell
o
Production of structural components of cells (cell repair & new cells)
o
Production of functional components of
cells (proteins - METABOLISM)
o
Cells also involved in elimination of waste,
o
Energy Production
What are the Parts of a
Cell
o
Cell membrane – outer cover of cells (Plasma
Membrane)
o
Organelles
o
Cytosol
o
Nucleus
o
Cytoplasm
o
Mitochondria (power house of the cell)
o
Ribosomes
o
Golgi apparatus
What is two main
divisions of a cell ?
o
– Mitosis (division of bodily cells other than
reproductive cells)
o
– Meiosis (Division of reproductive cells –
halves the genetic material)
Cell types in the body
based on their Regenerative capacities
o
Labile Cells: replication usually is a
continuous process. (epithelium of skin, mucus membrane, secretory glands, Bone
marrow, Blood, Spleen and Lymphoid Tissue)
o
Stable Cells: have the ability to replicate but
do so only infrequently. (Liver, Kidney, Pancreas, Fibroblasts, Smooth muscles
and Bone cells)
o
Permanent Cells: unable to replicate after
normal growth is completed (Nerve cells, skeletal and cardiac muscle)
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