NTA NTC Mid-term

Anatomy: The study of the body's parts or the body's structure. 

Physiology: The study of how the body works or how the body functions.

• 1) Chemical: atoms and molecules
• 2) Cellular: atoms and molecules join to form cells
• 3) Tissue: Cells joined together to perform a function.
• 4) Organ: Heart, stomach, etc
• 5) System: Organs joined together to perform a common function
• 6) Organism: all systems joined together to form a human being.

pH: Numerical value that represents the acidity or alkalinity of a substance. The lower the number the more acid (H+). The higher the number, more alkaline (OH-). The scale for pH runs 0-14. 0=pure acid. 14=pure alkaline. Each pH unit is a tenfold difference, meaning each whole pH value below 7 is ten times more acidic than the next higher value. For example, pH 4 is ten times more acidic than pH 5 and 100 times (10 times 10) more acidic than pH 6.

• Face forward
• Looking forward
• arms at the sides
• palms forward

• Superior: towards the head
• Inferior: towards the feet
• Proximal: toward the middle
• Distal: away from the middle
• Medial: Toward the midline of the body
• Lateral: to the side
• Anterior: front
• Posterior: back

• Ipsilateral: 2 things on the same side of the body
• Contralateral: on opposite sides of the body
• Superficial: toward or on the surface of the body
• Deep: away from the surface of the body
• Bilateral: both sides of the body
• Unilateral: one side of the body