Class 2: Basic Anatomical Terminology Flashcards
Anatomical position
individual stands erect, eyes facing forward, feet flat, arms at sides, palms turned forward
What is the purpose of body cavities
helps protect, separate, support internal organs
What are the major cavities
dorsal: contains cranial and vertebral canal
Ventral cavity: contains thoracic and abdominopelvic cavity
What forms the cranial cavity? What does it house
formed by bones of the skull, houses brain
Meninges
membranes covering brain and spinal cord
How many layers of meninges are protecting the brain?
three meninges
What fluid surrounds the brain and spinal cord
cerebrospinal fluid (CSF)
What forms the thoracic cavity. What does it contain?
ribs, sternum, thoracic vertebrae and muscles
contains heart, lungs etc.
how many spaces are within the thoracic cavity? What are they, and what do they contain
Pleural cavities (2)-contains lungs
Mediastinum- between pleural cavities - contains heart, thoracic organs
What cavity is the heart in?
within the pericardial cavity that is within the mediastinum
What separates the thoracic cavity from the abdominopelvic cavity
the diaphragm
What is the diaphragm
dome shaped muscle
What separates the abdominal cavity from the inferior pelvic cavity
no wall separates abdominal cavity from inferior pelvic cavity
Viscera
organs in the cavities of the body
Give some examples of abdominal organs
stomach, spleen, liver, gallbladder, small intestine, and most of the large intestine
Give some examples of pelvic organs
bladder, part of the large intestine and internal genital organs
What are membranes?
thin, pliable structures that cover, line and connect structures
What are the membranes of ventral cavities called? Describe it.
serous membranes -secrete serous fluid -2 layers: -parietal: lines walls of cavities -visceral: lines, covers, protects and adheres to organs
What membrane lines the pleura cavity? Describe it
Pleura
Visceral pleura: clings to surface of the lungs
Parietal pleura:lines the walls of the thoracic cavity and superior surface of the diaphragm
What is the pleural cavity?
in between visceral and parietal pleurae, filled with small amount of serous fluid that acts as lube for movements of the lungs
What is the pericardium?
Forms the pericardial cavity which contains the heart
Visceral pericardium
covers surface of the heart
Parietal pericardium
forms pouch like structure for the heart
What fluid is in the pericardial cavity, why?
serous fluid, for lubed movement of the heart
Peritoneum
serous membrane of the abdominopelvic cavity
Visceral Peritoneum
covers most of the abdominal viscera
Parietal Peritoneum
lines the abdominal walls and the inferior surface of the diaphragm
What allows free movement of the viscera in the peritoneal cavity?
lubricating serum
Describe the retroperitoneal space
organs in the retroperitoneal space are attached to the posterior abdominal wall, covered anteriorly by parietal peritoneum
What are the retroperitoneal organs?
kidney, pancreas, adrenal glands, duodenum