Chapter 1 Organization Flashcards
List in order the Organization of body levels.
Chemical, Cellular, Tissues, Organ, System and Organismal
Which two systems mainly control Homeostasis and how?
Endocrine through hormones and Nervous system through Nerve Impulses.
Name three parts of a Feedback system and Define them.
The Receptor which monitors changes in environment and sends a signal to Control Centre. Control center evaluates signal sends to Effector with produces a response
What is difference between Negative and Positive feedback system?
Negative feedback system reverses a change in environment. Positive strengths a change in environment.
What is a Sagittal plane?
Runs vertically, divides into left and right sides.
What is a Transverse plane?
Runs horizontally. Divided into upper or lower sections. Superior and Inferior portions.
What is Oblique plane?
Divides section at an angle.
What are the three Cavities found within the Thoracic Cavity? And define them.
The Pericardial Cavity. is the fluid filled space that surrounds the heart.
Two Pleural Cavities each surrounding one lung, contain small amount of fluid.
What and where is Mediastinum?
Central portion of Thoracic cavity. Between lungs contains, Heart, Thymus, Esophagus, Trachea and Large blood vessels.
What are the organs inside Abdominopelvic Cavity called?
Viscera
What is Serous membrane and layers.
Thin double layer that covers viscera and lines walls of the thorax and abdomen. Parietal Layer lines walls of thorax and abdominal cavity.
Visceral Layer covers an sticks to Viscera.
What is Serous Fluid?
Small amount of fluid between Parietal layer and Visceral layer which reduces friction and allows viscera to slide during movement.
What is serous membrane of the Pleural Cavity called?
Pleural Cavity surrounds lungs. Serous Membrane is called Pleura.
What is Serous Membrane of the Pericardial Cavity called?
Pericardial Cavity surrounds Heart. Membrane is called Pericardium.
What is the Serous Membrane of the Abdominal cavity called?
Peritoneum.
