Levels of Organization
What is an atom
This organ system includes hair, skin, and nails and is designed to protect the body from outside hazards and regulate body temperature
what is the integumentary system
What is the primary mechanism used by the body to correct deviations?
what is a negative feedback loop
The brain and spinal cord are house in what major body cavity?
What is the dorsal cavity
A group of similar cells that perform a common function make up what?
What is a tissue?
The organ system involved in hormone production and regulation and includes the pituitary gland, the thymus, and adrenal glands
What is the endocrine system
What is a positive feedback loop
What directional term means "toward the front of the body"
The abdominopelvic cavity can be subdivided into two parts, what are they?
What is the abdominal cavity and the pelvic cavity
What are the six levels of organization in order from smallest to largest?
Chemical -> cellular -> tissue -> organ-> organ system -> organism
A person jogs and breathes heavily to get more oxygen to their muscles. Two organ systems are working together here. Name them.
What are the respiratory and muscular systems
A diabetic cannot properly regulate blood sugar because their pancreas produces little or no insulin. This represents a failure of which homeostatic mechanism?
what is a negative feedback loop
The heel is _____ to the toes
what is posterior/dorsal
The heart is surrounded by this type of serous membrane
What is the pericardium
When someone has iron-deficiency anemia, their red blood cells can’t carry enough oxygen. At which level of organization is the problem?
What is the cellular level
This system provides voluntary movement, generates heat, and maintains posture.
What is the muscular system
In a feedback loop, what part carries out commands from the control center?
what is the effector
If I needed to divide the body into upper and lower halves, what plane would I need to cut?
What is transverse/horizontal plane
The ______ _____ lines the walls of the cavity, while the ____ _____ lines the organs themselves
what is the parietal layer and the visceral layer
Muscle fibers grouped together form skeletal muscle. At which level of organization does this occur?
What is the tissue level
A football player suffers a concussion. Which organ and organ system is most directly affected?
What is the brain and the nervous system
The acceptable fluctuation range around the set point of body temperature is called what?
what is normal range
The elbow is ____ to the wrist
What is proximal
The purpose of serous fluids is to what?
what is to lubricate organs and reduce friction during movement