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17 Cards in this Set

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what are the six levels of structure?

1.chemical


2. cellular


3.tissue


4.organ


5.system


6. Organismal

what are the 11 body systems?

1.

what is homeostasis?

the equilibrium or balance of the internal environment

What is ICF?

intracellular fluid: 2/3 of body fluid

What is ECF?

Extracellular Fluid: 1/3 of body fluid

what is ECF comprised of ?

80% Interstitial


20% plasma

what are the two forms of feedback?

Negative and positive feedback



Whats an example of negative feedback?

blood pressure regulation

what is an example of positive feedback?

child birth

What are the divisions of the nervous system?

CNS & PNS

What is CNS?

Central Nervous system:




-Brain and spinal Cord


-Integration and Command Centre





What is PNS?

Peripheral Nervous System:




-Paired Spinal and Cranial nerves carrying messages to and from CNS

Two functional divisions of PNS

Sensory (Afferent)


-impulses from skin, skeletal muscles, joints and visceral organs


Motor (Efferent)


-impulses from CNS to effector organs

Motor (Efferent) Divisions

Somatic and Autonomic

Describe Somatic Nervous System

Voluntary- conscious control of skeletal muscles

Describe Autonomic Nervous System

Involuntary- Regulates smooth muscle, cardiac muscle and glands


has two subdivisions: sympathetic and parasympathetic

Three functions of the nervous system

Sensory


Motor


Integrative