Body Orientation: Body Cavities

Question 1

Abdominal Cavity

Answer 1

bounded by abdominal walls, thoracic diaphragm (superior) and pelvic brim (infeior).

Question 2

stomach, intestines, liver, gallbladder, spleen, pancreas, kidneys and ureters, suprarenal glands, aorta, inferior vena cava, and lumbar nerve plexus.

Answer 2

Organs in the abdominal region

Question 3

Abdominopelvic cavity

Answer 3

Located: trunk between thoracic and pelvic diaphragms

Question 4

Major abdominal organs include: stomach, intestines, liver, gallbladder, spleen, pancreas, kidneys and ureters, suprarenal glands, aorta, inferior vena cava, and lumbar nerve plexus
Major pelvic organs include: urinary bladder, loops of small intestine, inferior part of sigmoid colon, rectum, and reproductive organs (ovaries, uterus, vagina in female; prostate and seminal glands in male)

Answer 4

Abdominopelvic Cavity

Question 5

Cranial Cavity

Answer 5

• Skull
• space in skull that contains brain, meninges, and cerebrospinal fluid (CSF)
• formed by frontal, occipital, sphenoid, ethmoid bones, parietal, and temporal bones.

Question 6

diaphragm

Answer 6

action: Dome of diaphragm flattens during inspiration. contractions increases vertical dimensions of thoracic cavity

Question 7

what nerves are involved in the diaphragm

Answer 7

phrenic nerve

Question 8

Mediastinum

Answer 8

Location: thoracic cavity

Question 9

Description of Mediastinum (5 things)

Answer 9

• middle region of thorax
• lies between sternum and thoracic vertebral bodies
• separates right and left pulmonary cavities
• divided into superior and inferior parts.
• inferior mediastinum subdivided into middle, posterior and anterior parts.

Question 10

pelvic cavity description (3 things)

Answer 10

• bound by pelvic inlet (superiorly) and pelvic outlet (inferiorly)
• major organs: urinary bladder, loops of small intestine, inferior part of sigmoid colon, rectum, and reproductive organs (ovaries, uterus, vagina in female; prostate and seminal glands in male)
• continuous superiorly with abdominal cavity

Question 11

which cavities are located in the thorax

Answer 11

pulmonary cavity and thorax cavity

Question 12

Description of pulmonary cavity

Answer 12

• bilateral subdivision of thoracic cavity (separated by mediastinum)
• contains lungs and plurae
• lined by parietal pleura

Question 13

how many subdivision does the thoracic cavity have? what are they?

Answer 13

three subdivisions: a central mediastinum (contains heart and thoracic parts of great vessels, trachea, esophagus, and thymus) and bilateral pulmonary cavities (contains lungs and pleurae)

Question 14

Thoracic cavity description (3 things)

Answer 14

• Cavity of the chest
• Bounded by sternum, ribs and costal cartilages, intercostal muscles, thoracic vertebrae, and diaphragm
• Three subdivisions

Question 15

Vertebral Canal location?

Answer 15

vertebral column

Question 16

a canal formed by combined vertebral foramina

Answer 16

vertebral canal

Question 17

contains spinal cord, meninges, spinal nerve roots, blood vessels and fat

Answer 17

vertebral canal