Chapter 1 : Introduction To The Human Body Flashcards
(83 cards)
Anatomy
The branch of science that studies the structure of the body.
Physiology
The branch of science that describes how the body functions.
Specialized groups of cells form tissues. Tissues are then arranged into
Organs
Homeostasis
The body’s ability to maintain a stable internal environment in response to a changing environment.
Anatomical position
The is standing erect, with the face forward, the arms at the sides, and the toes and palms of the hands directed forward.
Sagittal plane
Divides the body lengthwise into right and left portions
Frontal plane
Divides the body into anterior (front) and posterior (back) portions.
Transverse plane
Divides the body horizontally, creating an superior (upper) and Inferior (lower) body.
Viscera
The organs located within the cavities of the body.
Dorsal Cavity
Divided into cranial cavity and vertebral (spinal) cavity.
Cranial cavity
Located within the skull and contains the brain
Vertebral (spinal) cavity
Extends downward from the cranial cavity and is surrounded by bony vertebrae and contains the spinal cord within.
Thoracic cavity
Located above the diaphragm and is surrounded by the rib cage. The thoracic cavity is divided into two compartments by the mediastinum.
Mediastinum
A space that contains the heart, thymus gland, and parts of the esophagus, trachea, and large blood vessels attached to the heart.
Pericardial Cavity
Located within the mediastinum and contains the heart.
Pleural Cavities
The right and left lungs are located on either side of the mediastinum in the pleural cavities.
What are the four quadrants of the abdominopelvic cavity?
RUQ : Right Upper Quadrant
RLQ : Right Lower Quadrant
LUQ : Left Upper Quadrant
LLQ : Left Lower Quadrant
Pathophysiology
The branch of science that describes the consequences of the improper functioning of the body.
Describes what happens during a heart attack and when the heart functions poorly or not at all.
Structure and ________ are related.
Function
What are the levels of organization?
Atoms
Molecules
Cells
Tissue
Organ
Organ System
Organism
What are the 12 major organ systems?
- Integumentary
- Skeletal
- Muscular
- Nervous
- Endocrine
- Circulatory
- Lymphatic
- Immune
- Respiratory
- Digestive
- Urinary
- Reproductive
Mechanisms that help to maintain homeostasis are called_______.
Homeostatic Mechanisms
Superior
Above
Inferior
Below