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Homeostasis
State of balance within the body.
Structural organization of the body
Hierarchy includes cells, tissues, organs, body systems, and the human body as a whole.
Epithelial tissue
Covers internal and external surfaces of the body.
Connective tissue
Supports and holds together different parts of the body.
Midsagittal plane
Divides the body into equal left and right halves.
Thoracic cavity
Contains organs such as the heart and lungs.
Pelvic cavity
Contains organs like the bladder and reproductive organs.
Epigastric region
Top center region of the abdomen.
Umbilical region
Middle center region of the abdomen.
Axial skeleton
Comprises the skull, vertebrae, and rib cage, totaling 80 bones.
Appendicular skeleton
Comprises limbs and girdles, totaling 126 bones.
Synovial fluid
Lubricates joints and allows for free movement.
Tendons
Connect muscles to bones.
Ligaments
Connect bones to other bones.
Muscle contractibility
Ability of muscle to tighten and shorten.
Contracture
Shortened muscle that holds a joint in a flexed position.
Integumentary system
Largest organ system of the body, comprising skin and its appendages.
Psoriasis
A skin disorder characterized by overproduction of skin cells.
Osteoporosis
Condition where bones become weak and brittle.
Chronic muscle spasm
Involuntary muscle contractions that may lead to pain.
