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Human Bio Chapter 1

STUDY
PLAY
Anatomy
the study of the structure
Physiology
the study of the functions
Levels of Organization
1. Atoms
2. Molecules
3. Cells
4. Tissues
5. Organs
6. Organ Systems
Characteristics of Life
1. Organization (levels)
2. Metabolism (all the chemical reactions in the body)
3. Responsiveness
4. Growth
5. Development
6. Reproduction
Homeostasis
body desiring to the stay the same, steady trait
Negative Feedback
Counteract, Opposite to maintain homeostasis (if you're hot, you sweat)
Positive Feedback
Hit setpoint and keep going higher (no regulations). (heart beats faster when you're cut, bleed faster, contractions to push a baby out)
Anatomical Position
feet forward, palms out
Superficial
on the surface, what you see
Deep
inside
Supine
Lying on back
Prone
Lying on belly
Anterior
Cephalic, Trunk, Upper Limb, Lower Limb
How many regions in the abdomen?
Nine
Subdivisions of the abdomen
right upper, left upper, right lower, left lower
Splits body vertically
Medial, saggital plane
Splits body horizontally
transverse, frontal, coronal plane
Serous Membranes
1. Visceral
2. Parietal
3. Pericardial
4. Pleural
5. Peritonel
6. Mesenteries
Visceral
organs
Parietal
lines organ cavity
Pericardial
around heart
Pleural
around lungs
Peritonel
area around abdomen cavity
Mesenteries
membrane that holds together