• divided by a horizontal muscle, the diaphragm, into the thoracic cavity and the abdominopelvic cavity
• contains the heart, lungs, and large vessels

• Cranial cavity (containing the brain)
• Spinal cavity (containing the spinal cord)

• lies above the diaphragm
• divided by an imaginary line along the top of the pelvis into the abdominal cavity and the pelvic cavity

Abdominal Cavity

• contains most of the digestive organs and abdominal glands, such as the stomach, liver, gallbladder, pancreas, and most of the intenstines

• contains part of the large intestine as well as the reproductive organs

• the lipid that forms the cell membrane
• they are arranged in two layers oriented in two directions
• hydrophilic heads at either edge that face the watery cytoplasm
• hydrophobic tails form an internal oily layer that keeps the intracellular and extracellular fluids from mixing with each other

• water is released
• hydrogen bonds connect to atoms (amino acids usually)

• RO- religious orientation- whose am i- God's.. in his image
• CS- creational structure- what is the world like- boy
• CD- creational development- how did it get that way- sin
• CR- contemporary response- what do i do about it- care for bodies, treat disease

• microfilaments- maintain cell shape, assist muscle contraction, form cilia/microvili
• Intermediate filaments- maintain cell shape; strengthen nuclear envelope
• Microtubules- organize organelles, move chromosomes and organelles, move vesicles, move cilia and flagells, assist muscle contraction

• classified according to the number of cell layers and the shape of the cells making up those layers

• flat cells
• allow things to difuse through

• secretion and absorption
• boxy cells

• absorption
• long thin cells

• multiple layers of flat cells
• only surface cells are squamous
• protect against physical and chemical trauma

• stretchy
• boxy
• allows distention

• type of gland
• secrete their product into ducts

• no ducts
• secrete their products into tiny blood vessels

• 3 components= sensor, integrating center, effector
• EX. When blood loss has occured, baroreceptors signal to the integrating center that the blood pressure is low. The integrating center signals to breathe faster, increasing the blood pressure

• the cell uses atp to pump 3 sodiums out and 2 potassiums in
• forms 2 gradients- potassium gradient, sodium gradient, and charge gradient
• this is used for signaling