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3 two types of nephrons 4 cortical nephron a loops of

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Unformatted text preview: invaders when the skin cannot 4. Natural immunity 1. When a child is born, they get immunity from their mother 1. Born with some of their mother's antibodies 2. When a woman has a baby, she produces a milk called colostrum, which also contains antibodies 5. Acquired immunity 1. When an invader enters a person's body, your immune system will make particles called antibodies 2. These antibodies attach to the antigen (the invader) and mark it for destruction 3. White blood cells destroy them 4. After the attack has been suppressed, the antibodies continue to circulate in the system 5. If the invader resurfaces, the body can quickly mount another defense. 2. Nervous System 1. Is the body's communication system 2. Functions by passing chemical and electrical signals through neurons 1. Neurons are the functional unit of the nervous system 2. shield increases speed 3. Organized into two parts 4. Central nervous system 1. AKA, CNS, contains the brain and spinal chord 2. Brain 1. Is important 2. Is control center of the body 3. Where you reason, feel, and store memories 4. Brain Is who you are 5. Also keeps you alive 6. Composed of billions of neurons 3. Spinal chord 1. A bundle of neurons that serves as a connection between the brain and the rest of the body 2. Reflex a. A reaction to dangerous stimuli before the brain can react b. Is a form of protection 5. Peripheral nervous system 1. AkA, PNS 2. Contains all other nerves in the body 3. Have the afferent, sensory nerves 4. Carries nerves to the CNS 5. Efferent nerves are motor nerves 6. Carry away from CNS 1. Endocrine System 1. A series of glands with three functions 2. Controls bottle functions, communicates changes, and maintains stability in the body 3. Accomplishes this with hormones that are secreted by glands directly into the blood stream 4. Hormones 1. Powerful chemical messengers 2. Body makes small amount 3. Considered to be lipids 4. Means that they can flow into a cell 5. Within the cell on which they act will be a special receptor 6. Once inside, they will attach to the receptor, then together, enter the nucleus where they become a transition factor. 7. This is how steroid hormones work 5. Glands 1. Glans of the endocrine system are the pituitary gland (growth) 2. Thyroid gland 3. Thymus gland (immune) 4. Pancreas (insulin and glucagon 5. Adrenal Glands 6. MAKE...
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