Human Structure and Function Chapter 1.6

Dorsal Body Cavity

One of two major body cavities, protects fragile nervous system

Dorsal Cavity Subdivisions

Cranial cavity, vertebral cavity

Cranial cavity

subdivision of dorsal cavity, in the skull, encases brain

Vertebral cavity

Subdivision of dorsal cavity, vertebral column enclosing spinal cord, countinuation of cranial

Ventral body cavity

One of two major body cavities, larger and anterior to dorsal, two major subdivisions

Subdivisions of ventral body cavity

Thoracic cavity, Abdominopelvic cavity

Thoracic cavity

Superior ventral body cavity subdivision, by ribs and muscles of chest, further subdivided

Subdivisions of thoracic cavity

Lateral pleural cavities, mediastinum cavity, pericardial cavity

Lateral pleural cavities

Subdivision of thoracic cavity in ventral body cavity, each protect a lung

Mediastinum cavity

Subdivision of thoracic cavity in ventral body cavity, medial, contains pericardial cavity

Pericardial cavity

In ventral body cavity, Subdivision of thoracic cavity inside mediastinum cavity, encloses heart and other organs

Abdominopelvic cavity

Inferior subdivision of ventral body cavity, two subdivisions

Subdivisions of abdominopelvic cavity

abdominal cavity, pelvic cavity

Abdominal cavity

Superior subdivision in abdominopelvic cavity, in ventral body cavity, contains stomach, intestines, spleen, liver, other organs

Pelvic cavity

In ventral body cavity, inferior subdivision of abdominopelvic cavity, contains urinary bladder, reproductive organs, and rectum

Abdominopelvic 9 regions, left to right, up to down

Rights hypochondriac, Epigastric, Left hypochondriac, Right lumbar, umbilical, Left lumbar, Right inguinal, pubic(hypogastric), Left inguinal

Umbilical Reigon

Centermost region of abdominopelvic cavity, contains small intestine and transverse colon of large intestine

Epigastric region

Superior middle region of abdominopelvic cavity, contains stomach,

pubic/ hypogastric cavity

Inferior middle region of abdominopelvic cavity, contains urinary bladder

Right inguinal/ iliac region

Right inferior region of abdominopelvic cavity, contains cecum and appendix

Left inguinal/ iliac region

Left inferior region of abdominopelvic cavity, contains initial part of sigmoid colon

Right lateral/ lumbar region

Left middle region of abdominopelvic cavity, contains ascending colon of large intestine

Left Lateral/ lumbar region

Left middle region of abdominopelvic cavity, contains descending colon of large intestine

Right hypochondriac region

Right superior region of abdominopelvic region, contains liver and gallbladder

Left hypochondriac region

Left superior region of abdominopelvic region, contains diaphragm and spleen

Oral and digestive body cavity

Oral cavity(mouth) protects teeth and tongue, continuous with cavity of digestive organs

Nasal cavity

Within and posterior to the nose, protects respiratory system passageways

Orbital cavities

Orbits as their known, protect eyes and present them in anterior position

Middle ear cavities

in the skull medial to eardrums, contain tiny bones that transmit sound vibrations

Synovial cavities

Joint cavities, surround freely movable joints of body like knee and elbow