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Nervous, Endocrine,
Human Body Systems: part 3
Question | Answer |
---|---|
1. What is the function of the nervous system? | To coordinate all actions of the body. |
2. The function of a neuron allows electrical energy in the body to be transformed into________ energy to send nerve impulses from one neuron to another. | chemical |
3. List the 2 types of stimuli and give an example of each. 1) ________ example: _________ 2) ________ example: _________ | 1) external example: a loud noise 2) internal example: a virus that makes you sick |
4. List the 3 major divisions of the brain and what they control. 1) _____ 2) _____ 3) _____ | 1) cerebrum – logical thinking and creativity 2) cerebellum – voluntary tasks, balance and muscle coordination 3) __brain stem – involuntary tasks |
5. Using your brain fold-able, label the diagram. a. _______ b. ________ c. _______ d. ________ | a. cerebrum b. cerebellum c. Spinal cord d. brain stem |
6. A ________________ is the space between the axon tips of one neuron and the dendrite of another neuron and allows a nerve impulse to travel to the next neuron. | synapse |
7. The nervous system has two major divisions. List the 2 divisions and their structures. 1) _____ 2) _____ | 1) Central Nervous System – brain and spinal cord 2) Peripheral Nervous System – All other nerves outside the CNS |
8. Sense organs, such as the _______, ears, touch, nose, and tongue, belong to the ____________ system. Their primary function is to provide ___________ to the body about the outside world. | eyes, nervous, information |
9. _______________ is the term used to describe the constant state of the internal environment. The body strives to maintain a level state and is constantly adjusting. The regulation is controlled through both the ___________ and ___________ systems. | homeostasis, nervous, endocrine |
10. The function of the __________________ system is to produce chemicals called _______________ that control both daily activities, long-term changes and mood. | endocrine, hormones |
11. What is negative feedback? What is an everyday example of this process.?_________________________ | a process that when the amount of a hormone reaches a certain level, the endocrine system stops producing it. Example: heating system or toilet filling with water |
12. ____________ are specialized organs of the endocrine system, which collect and process substances from the blood. The concentrated substances are chemicals called _________________ and are secreted to regulate daily body activities. | glands, hormones |
13. A hormone interacts only with a __________________ cell, which fits together with that hormone. | target |
14. The __________________________ is part of the brain that is the link between the endocrine system and the nervous system. | hypothalamus |
15. The _____________ endocrine gland is sometimes called the master gland although is only the size of a pea. | pituitary |
16. What is the main function of the reproductive system? ________ | to allow offspring to be born |
17. The ______________ produce and secrete hormones in addition to releasing eggs in a female. This function makes them part of both the __________________ and _______________________ systems. | ovaries, endocrine, reproductive |
18. The main function of the testes and ovaries are the produce _______ cells, which join to from a ______________. | sex, zygote |
19. Human eggs are usually fertilized in the female’s oviduct or ______________________. | Fallopian tube |
20. What happens during fertilization? _________ | a sperm and an egg join together |
21. The structure formed during fertilization is call a ____________________. | zygote |
22. The main event that occurs in puberty is that an individual is able to __________________. | reproduce |
23. List the 3 stages of birth. 1) _______2) ________3) ________ | 1) labor 2) delivery 3) afterbirth |
24. The stages of development that occur after fertilization in order are:_____________, ________________, ______________ | zygote, embryo, fetus |
25. The _______________ and ________________ systems work together to produce offspring because hormones play a vital role in the production of sex cells. | endocrine, reproductive |