Transcript Introduction to Dissection

Review of Anatomy/Physiology and
Dissection Overview
BI9. a. Students know how the complementary
activity of major body systems provides cells
with oxygen and nutrients and removes toxic
waste products such as carbon dioxide.
 BI9. b. Students know how the nervous system
mediates communication between different
parts of the body and the body’s interactions
with the environment.
 BI9. c. Students know how feedback loops in the
nervous and endocrine systems regulate
conditions in the body.
 BI9. d. Students know the functions of the
nervous system and the role of neurons in
transmitting electrochemical impulses.

 Understand
the how the human body is
organized starting from the smallest (cells)
to the largest (organism) level.
 Explain how different organ systems work
together to maintain homeostasis.
 Understand the importance of maintaining a
stable internal environment in the human
body.
 The
human body is made of different levels
of organization starting with cells and
building up all the way to organ systems.
Organ systems work together through
mechanisms like negative feedback loops
to maintain homeostasis in the human
body.
 Cells-has
a particular structure and make up.
(epithelial cell)
 Tissues-groups of similar cells to perform a
specialized function (Epithelial lung tissue
cell).
 Organs-different types of tissue that function
together (lung).
 Organ
systems( respiratory system)-are made
of two or more organs.
 Organism
(you)-Organ systems work together
and interact to keep you alive.
 Homeostasis-regulation
and maintenance of
internal environment of body (temp., gases,
pH, fluids, nutrients, and salts).
 Negative
feedback loops are necessary for
homeostasis.
 Rationale-Rat
Anatomy=Human Anatomy
 Complete survey of internal and external
organs
 Observe interactions/connections of organ
systems
1.Rat skinned and muscles exposed.
2. Remove muscles from one hind leg to
expose the femur, tibia, and fibula.
3. Pinning the structures of the head and neck.
4. Pinning the organs of the digestive system.
5. Removal and dissection of the kidney,
opening of the stomach and small
intestines.
6. Pinning the urogenital organs.
7. Turn in the rat.
 Forceps=tweezers
 Scalpel-similar
to a knife, used for making
incisions, separating tissues
 Dissecting scissors-used for making
shallow cuts
 Dissecting probe-used to carefully move
organs
 Pins-used to hold back layers/tissues
 Dissecting tray-where organism is
dissected
 What
are the 5 levels of organization in the
human body?
 Why is important for your body to maintain
homeostatic (stable internal) conditions?
 List two dissection tools and their functions.
 Why are we dissecting rats?
 What is the difference between external and
internal anatomy?