rst Flashcards
Anterior (ventral)
front
Posterior (dorsal)
back
Superior (cranial)
upper
Inferior (caudal)
lower
Medial
midline
Lateral
Away from midline
Proximal
Point of origin
Distal
away from point of origin
Superficial
external/surface
Deep
internal/beneath surface
Body cavities (There are 4!)
Dorsal - cranial, spinal
Ventral - thoracic, abdominal, pelvic
(Diaphragm separates thoracic from abdominopelvic)

Homeostasis
maintenance of a constant environment in the
How to heat up?
Vasoconstriction
Piloerection

How would we control body temp by cooling?
Sweating
Vasodilation

How to control glucose levels
Excess glucose turns into glycogen in liver.
2 Hormones: insulin - delivers glucose to liver
glucagon - converts glycogen into glucose in blood

Control water levels
Via Kidneys
- Urea is waste made when liver breaks down proteins
1) filter
2) Reabsorb sugar
3) Reabsorb water
4) excrete waste
Terms of human body
(physiology, anatomy)
Physiology - study of body anatomy
Anatomy - study of structure
Tissues
Epithelial - Covers surface, forms lining
Connective - Supports and binds
Muscle - skeletal, smooth, cardiac
Nerve - carries messages via body

Cancer
Causes
Normal vs Cancerous
Prevention
Uncontrolled cell division - groth/lump damaging tissues and organs
carcinogens, heredity
oncogenes dont carry out normal functions
avoid sun exposure, tanning, etc

Infection control
Some infectious biological agents
3 Types
Bacteria, - multiply quickly + remain non-active surrounded by spore coat
viruses, smallest; difficult to destroy, can grow inside cells, spread by blood/body fluid, few anti-virals
and fungi - (Yeasts + Molds) lives off dead matter

Chain of infection
(6 Factors)
- Pathogen (causes disease)
- Reservoir (environment like people, insects, formite)
- Portal of Exit (body opening, nucous membbrane, breaksin skin)
- Mode of transmission (direct, indirect, droplet/airborne, etc)
- Portal of Entry (respiration, GI tract, etc)
- Susceptible host (person with immunocompromised)
Sterilization AND Disinfection
Sterilization - BESt way to kill microbes, autoclave uses steam under pressure
Disinfection - Strong chemicals to kill; used on objects,
Proper body mechanics
To reduce strain on lumbar muscle,
Position - weight close as possible
Height - Slightly above level of middle finger
Body position - multiple muscles
Max weight - less than 35%
careful when lifting things above, big base of support, maintain alignment with head/vertabrae
Integumentary system
Function??
Protects body from -injury AND harmful microbes AND UV rays
Maintain body temp
Excretion of waste via perspiring
Sensory organ









