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Physiology- The study of the organs functions
1. Regulation of the bodys internal environment around set points (desired state)
2. Goal: Provide chemical reactions in a stable environment
a. Oxygen, pH, temperature, hydration
1. Provide information about the body (vs. the environment): stimuli on the skin surface and
the surface of the digestive tract, limb position (proprioception)
a. Modalities of touch, proprioception, temperature, nociception (pain)
b. Map o
Packet 1 (Synapse)
1. The junction between a neuron and another cell (including pre and post synaptic cell, and
2. When an action potential reaches axon terminal of presynaptic cell, neurotransmitters are
released, cross synaptic cle
1. What is the role of calcium in the synaptic terminal?
a. Ca is required to depolarize the axon
b. Ca is released into the synaptic cleft, it is a neurotransmitter
c. Ca initiates exocytosis of neurotransmitter
2. What would happen if potassiu
Exam 3 Clickers
1. Where in the gastrointestinal tract will you find peristalsis?
a. Esophagus, intestines, stomach
b. Large intestine only
c. Stomach only
2. What is the function of plicae in the small intestine?
a. Secretion of water and most
Carbon monoxide is lethal because it
Binds hemoglobin preventing oxygen binding.
The _ conducts impulses from the AV node to branches which lead to the Purkinje
The action potential of nonpacemaker cells is due to the
Inward diffusion of
Exam 4 Notes
Cardiovascular System: Functions
1. Heart, blood vessels, blood
a. Heart 4 chambers
b. 2 Atria (atrium)
c. 2 Ventricles
d. Blood of RV pulmonary artery, distributes used or deoxygenated blood,
blood that has passed through working tissues and
Exam 4 Clicker Questions
1. In most illustrations of the circulatory system, some blood is depicted as BLUE, while
some is RED. What does the BLUE represent?
A. Oxygenated blood in systemic arteries
B. Deoxygenated blood
C. Deoxygenated blood in the pulmo