Podcast
Questions and Answers
What is the main characteristic of the dorsal body cavity?
What is the main characteristic of the dorsal body cavity?
Which of the following is housed in the pleural cavity?
Which of the following is housed in the pleural cavity?
What is the function of the pericardial cavity?
What is the function of the pericardial cavity?
Where are the reproductive organs housed in the body?
Where are the reproductive organs housed in the body?
Signup and view all the answers
Which body cavity is filled with organs and often surrounded by membranes?
Which body cavity is filled with organs and often surrounded by membranes?
Signup and view all the answers
What does the ventral body cavity consist of?
What does the ventral body cavity consist of?
Signup and view all the answers
What is the position in which a person is standing upright with the upper limbs hanging by the sides and the palm directed forwards?
What is the position in which a person is standing upright with the upper limbs hanging by the sides and the palm directed forwards?
Signup and view all the answers
In anatomical terms, what does 'proximal' refer to?
In anatomical terms, what does 'proximal' refer to?
Signup and view all the answers
What divides the body into superior and inferior parts?
What divides the body into superior and inferior parts?
Signup and view all the answers
Which term describes any point farther from the root of a limb?
Which term describes any point farther from the root of a limb?
Signup and view all the answers
What term refers to being closer to the surface of the body?
What term refers to being closer to the surface of the body?
Signup and view all the answers
In anatomical terms, what is a plane perpendicular to sagittal planes?
In anatomical terms, what is a plane perpendicular to sagittal planes?
Signup and view all the answers
What internal organs are found in the abdominal cavity?
What internal organs are found in the abdominal cavity?
Signup and view all the answers
Which quadrant contains the liver, gall bladder, and right kidney?
Which quadrant contains the liver, gall bladder, and right kidney?
Signup and view all the answers
What separates the abdominal-pelvic cavity from the superior thoracic cavity?
What separates the abdominal-pelvic cavity from the superior thoracic cavity?
Signup and view all the answers
Why do anatomists divide the human abdomen into quadrants?
Why do anatomists divide the human abdomen into quadrants?
Signup and view all the answers
Which region of the abdomen houses the descending colon and left ovary?
Which region of the abdomen houses the descending colon and left ovary?
Signup and view all the answers
How many regions can be marked using two horizontal and two vertical dividing lines in the abdomen?
How many regions can be marked using two horizontal and two vertical dividing lines in the abdomen?
Signup and view all the answers
Study Notes
Body Cavities
- The human body has two largest cavities: dorsal body cavity and ventral body cavity.
Dorsal Cavities
- Cranial Cavity: holds and protects the brain.
- Vertebral cavity (Spinal Cavity column): runs through vertebra and protects spinal cord.
Ventral Cavities
- Divided into two subdivisions: Thoracic cavity and Abdominopelvic cavity.
Thoracic Cavity
- Divided into three subdivisions:
- Pleural cavity: houses lungs.
- Mediastinum: contains pericardial cavity and surrounds remaining thoracic organs.
- Pericardial cavity: encloses the heart.
Abdominopelvic Cavity
- Fills the lower half of the trunk and is subdivided into abdominal cavity and pelvic cavity.
- Abdominal cavity: holds digestive organs and kidneys.
- Pelvic cavity: holds reproductive organs and organs of excretion.
Abdominal Quadrants and Regions
- Divided into four quadrants: left lower quadrant (LLQ), left upper quadrant (LUQ), right upper quadrant (RUQ), and right lower quadrant (RLQ).
- Each quadrant contains specific organs.
Abdominal Quadrants
- LLQ: contains descending colon, sigmoid colon, left ovary, fallopian tube, and left ureter.
- LUQ: contains stomach, spleen, left lobe of liver, pancreas, left kidney, and adrenal gland.
- RUQ: contains liver, gallbladder, duodenum, head of pancreas, right kidney, and adrenal gland.
- RLQ: contains cecum, appendix, ascending colon, right ureter, right ovary, and fallopian tube.
Anatomical Positions and Movement
- Anatomical position: standing upright with upper limbs hanging by the sides and palms facing anteriorly.
- Classifications based on points:
- Anterior: nearer to the front.
- Posterior: nearer to the back.
- Superior (Cephalic): nearer to the head.
- Inferior (Caudal): nearer to the foot.
- Proximal: nearer to the root of the limb.
- Distal: farther from the root of the limb.
- Midline: imaginary vertical line dividing the body equally.
- Lateral: farther from midline.
- Medial: nearer to midline.
- Superficial: close to the surface of the body.
- Deep: away from the surface of the body.
Anatomical Planes
- Axial plane (horizontal, transverse or transaxial plane): horizontal plane perpendicular to the long axis of the body.
- Sagittal plane: any imaginary plane passing through the body parallel to the median plane.
- Coronal plane: plane perpendicular to the median or sagittal planes.
Movement
- Circumduction: circular movement of a joint using a combination of flexion, abduction, extension, and adduction.
- Medial rotation: brings the anterior surface of a limb closer to the median plane.
- Lateral rotation: takes the anterior surface away from the median plane.
- Lateral flexion: moving the trunk in the coronal plane.
- Trendelenburg position: patient is supine on an inclined radiographic table with the head lower than the feet.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on the anatomy of the abdominal and pelvic cavities. Learn about the organs found in each cavity and the anatomical divisions used for study and diagnosis.
