Organizations of Life & Organ Systems
Organ Systems
Body & Abdominopelvic Cavities
Directional Terms & Planes
Homeostasis & Feedback Loops
100
The most common feature of ALL organisms is...
LIFE
100
Smell, Taste, Vision, Hearing, & Touch are all part of the...
Sensory System
100
What organs does the dorsal cavity include?
brain & spinal cord
100
Sagittal Plane splits the body into what halves?
Left & Right
100
What does the word "feedback" mean and what association do you have with it?
Helpful info or criticism given to say what can be done to improve performance/product
ex: grades, sports performance, etc
200
The first and most important characteristic of life:
Organization!
200
Controls the body by means of chemical signals called hormones; includes glands like the thyroid, adrenal glands, and pancreas
Endocrine System
200
What organs does the thoracic cavity include?
heart & lungs
200
Frontal (Coronal) Plane splits the body into what halves?
Front & Back
200
What is the definition of homeostasis?
The ability to maintain internal stability in response to external conditions/environments
Ex: body temp, blood pressure, blood pH, hunger/eating
300
The ability of an organism to sense change in its internal or external environment and adjust to those changes
Responsiveness
Ex: Homeostasis!
300
Controls & Coordinates the body activities by transmitting electrical signals; includes brain, spinal cord, and nerves
Nervous System
300
What organs does the Ventral cavity include?
stomach, intestines, digestive & reproductive organs
300
Transverse Plane splits the body into what halves?
Top & Bottom
300
The 3 steps in Homeostasis are:
Ex: home heating/cooling system
Know how to draw the diagram of a homeostatic mechanism!
DETECT: the stimulus is received by the receptor when it detects a change from the set point (normal target value)
CONTROL: the receptor sends a signal to the control center, which triggers an effector to make a response happen
RESPONSE: the effect of the response should return the system to homeostasis
400
What are the Levels of Organization?
Hint: Begins with Atom and ends with Organism
atom - molecule - cell - tissue - organ - organ system - organism
400
Protects underlying organs from bacteria, drying out, and mechanical damage; includes epidermis, dermis, and cutaneous sense organs
Integumentary
400
What organs does the pelvic cavity include?
digestive & reproductive organs
400
The belly button is _______ to the spine; while the shoulder blades are ________ to the spine.
anterior (in front)
posterior (in back)
400
Negative Feedback Loop reverses a stimulus in order to return to the set point. Give an example:
Body Temperature Regulation because are body's don't like to be shivering or too sweaty more than needed
500
We named organization & responsiveness, what are the last 4 essential characteristics to life?
1. metabolism
2. growth
3. development
4. reproduction
500
4 types of tissues: muscle, nervous, epithelial, and connective
Hint: doctors study cancer cells through this process
Histology: microscopic study of tissues
500
Why do clinicians and anatomists prefer using the 9 abdominopelvic regions in comparison to the 4 quadrants?
the 9 regions offer more detailed and precise framework for understanding & describing the anatomy of the abdomen & pelvis.
500
The wrist is _____ to the elbow and ______ to the hand.
distal (further away from)
proximal (closer to)
500
Positive Feedback Loop increases a stimulus in order to move away from the set point. Give an example:
Blood Clotting to heal the wound; chemicals release more platelets until clot is formed