Planes and Sections
Used in dissections and also as adjectives to indicate just how you are looking at a body or structure
Sagittal (median, medial)
Transverse (horizontal, cross section, x-section)
Dorsal body cavity
Ventral body cavity
Abdominal cavity (abdominopelvic)
Serosa is doubled membrane lining cavities
Peritoneum lines visceral and pelvic cavities
Parietal serosa lines cavity
Visceral serosa attached to organs within cavity
Pericardium lines pericardial cavity
Pleural serosa lines pleural cavity
Biol1161—Pres2 Simple Chemistry
*Energy is the capability to do work*, usually meaning to move something.
Energy exists in forms that can be changed from one to the other, including:
Matter exists in states including solid, liquid, gaseous. Matter can be converted to energy and energy to matter under special circumstances.
Atoms are the basic material of matter.
All matter is made from atoms.
An element is matter consisting on one distinctive type of atom.
There are 92 natural elements on earth (hydrogen to uranium), plus 10 or more artificially produced trans-uranium elements.
59 elements typically form part of the human body.
The four major elements of the body are:
*Water (H2*O) forms about 70-75% of body weight: WATER IS NOT AN ELEMENT—it is a compound!
*An atom is made of smaller particles, subatomic particles*, but when broken down to these particles it cannot be put back together.
*Protons have a positive charge
*Electrons have a negative charge
*Neutrons have a neutral charge
THE NUMBER OF PROTONS AND ELECTRONS IN AN ATOM ARE ALWAYS...