Define and discuss antigen. Antigens are bound to specific receptors called antibodies, antigen receptors. The antigens are recognized as "foreign" and are targeted by antibodies. They are bound to the antibodies and illicit an antigen-antibody reaction. The reaction attempts to destroy the invading antigen. Many antigens are classed as allergens, which will illicit and allergic response. This includes severe inflammation, nasal secretion, swelling, wheezing, increased heart rate, urticaria, pruritus, and angio edema. A sever allergic response may occur, called anaphylactic shock, accompanied by vascular collapse, shock, and respiratory distress. Often leading to death.
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
Nina was a few minutes late, but we covered all the material.
Discuss agonists as exogenous messengers. Define agonist and show how they are chemicals which enhance or initiate the same response as the endogenous messenger. Show how and why they bind to the same receptors. The thyroid gland hormone is used to exemplify how the exogenous agonist works. The anatomy and physiology of the gland and the hormone is presented, as well as the effect of hypothyroidism.
How do receptors recognize the receptors? Discuss and explain the terms specificity and affinity as it applies to the messenger receptor complex. Outline some typical responses. These may include muscle contraction, increase blood pressure, production of a hormone, change in heart rate, and production of antibodies.
Explain endogenous messengers using serotonin and dopamine as examples. Discuss their effect in mood modulation, competition, reward anticipation, learning and memory.
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
Nina always seems very interested and her questions arethought provoking.
During today’s session. We have started working on Nervous System Physiology. We have learned that the nervous system has three main functions: sensory, integration, and motor, and we have defined each of them
During today’s Anatomy and Physiology session, we have continued working on the anatomy of the nervous system. Today, we have studied the anatomy and the functions of the meninges and the cerebrospinal fluid, and their vital functions for the central nervous system.
During today’s session, we have continued working on the nervous system. We studied that there are 3 basic classes of neurons: afferent neurons, efferent neurons, and interneurons, and we defined each of them.
