axial head neck trunk/torso › thorax :upper portion (superior) › abdomen: midportion ›...
TRANSCRIPT
Organization of the Human Body
Chapter 1Pgs 19-20
Body Regions
Axial Head Neck Trunk/Torso
› Thorax :upper portion (superior)
› Abdomen: midportion› Pelvis: lower portion
(inferior)
Appendicular Pectoral girdle &
upper limbs Pelvic girdle & lower
limbs
Body Cavities
Spaces within the body which house the internal organs (viscera).
Consists of two main cavities:1. Dorsal cavity-the cavity along the back,
posterior side of the body2. Ventral cavity-the cavity along the front,
anterior side of the body
Subdivisions of Body Cavities
Dorsal Cavity Towards Back
Cranial cavity (head) Spinal/vertebral
cavity (neck, thorax, abdomen)
Ventral CavityTowards Front
Orbital cavities (head) Nasal cavities (head) Oral cavities (head) Otic Cavities (head) Thoracic cavity (thorax)
› Pericardial cavity› Pleural cavities
Abdominopelvic cavity (abdomen & pelvis)› Abdominal cavity› Pelvic cavity
Two major cavities within the axial portion:
Body MembranesSheets of tissue that serve to protect body
structures.Serous Membranes
› Double layered sheets of connective tissue separated by a small amount of fluid1. Parietal layer-outer layer, forms the outer
boundary of the cavity2. Visceral layer-inner layer, sits directly on the organ
it covers› Serous fluid-secreted from the membrane to
separate the parietal & visceral layers.
Body Membranes cont.
Peritoneal Membranes Covers the stomach, liver, spleen,
gallbladder, small & large intestine in the abdominal cavity.
Covers the distal end of the large intestine, bladder & internal reproductive organs in the pelvic cavity.
Body Systems
Body Systems consist of a collection of organs that work together to perform a specific task or function.
Cardiovascular Digestive Endocrine Integumentary Lymphatic Muscular Nervous Reproductive Respiratory Skeletal Urinary