Name: __________________________________________________ Date: _______________________ Period:___________ Human Body Review Part I | Homeostasis, Senses, Nervous & Endocrine System Senses 8. Label the parts of the eye: a.____________
Levels of organization & Homeostasis 1. Place the levels of organization in order, from largest to smallest, using the respiratory system as an example. e.____________
d.______________ _________________>___________________>__________________>___________________>_____________________ 2. In what process do stem cells commit to becoming a certain cell type? _________________________ a. What process do they obtain their specialized structures? ______________________________ f.________________
3. Put the following mixed up steps of a control system in the correct order (from 1 to 5). ________ Target cells react, or change. ________ The nervous system (communication system) sends the message from the control center to the target cells. ________ Sensory organs/Receptors detect stimuli and gather data. ________ The control center (brain) receives the impulse/message. ________ The nervous system (communication system) sends the impulse/message to the control center. 4. Draw and or explain an example of each: ‐‐ ‐‐
+
+
Negative Feedback Positive Feedback 5. Feedback loops are important in maintaining _______________________________________. b.____________
c.___________
9. Which part of the eye contains photoreceptors? ___________________________________________ a. Which photoreceptors detect color? ____________ b. Absence of light?___________________ 10. What part of the eye controls the amount of light that enters the eye? _________________________ 6. Define thermoregulation: _____________________________________________________________ 11. Label the parts of the ear: d.____________
c.____________
b.________________ (3 bones included) : _____________________
a.____________
_____________________
_____________________ 12. What structure carries the impulse to the brain for interpretation (sound)? _____________________ __________________________________________________________________________________. 13. Which part amplifies the sound waves? __________________________________________________ 7. Why is homeostasis important? ________________________________________________________ 14. Where are hair cells located? What do they do? ___________________________________________ ___________________________________________________________________________________
__________________________________________________________________________________. ___________________________________________________________________________________ 15. What do chemoreceptors detect? Where can they be found? ________________________________ ___________________________________________________________________________________ 16. What structure carries impulses generated in the nose to the brain for interpretation? ___________________________________________________________________________________ The Nervous System 17. Label the parts of a neuron: a.____________
27. Label the organs of the endocrine system: b.____________
c.____________
d.____________
18. What are the two parts of the Nervous System; what do they consist of? _____________________________________ & _______________________________________ 19. When a neuron is at rest, it is called the ______________________ ________________________. 20. When a neuron is at rest, what is the overall charge inside the cell? ____________________________ a. What is the overall charge outside the cell? _______________________ 21. When a neuron as a moving electrical impulse, it is called the _______________ _______________. 22. (Fill in the blanks) During an action potential, ________________(element) rushes in, and 28. How do hormones travel? ____________________________________________________________ 29. Match the gland with the proper hormone/function: ______ Ovaries _______________ (element) leaves the cell via sodium/potassium pumps. This changes the charge ______ Testes from _______________ to _________________ inside the neuron. ______ Pituitary 23. What is the gap between neurons called? ________________________________________________ 24. What happens when an electrical impulse reaches the terminal? What crosses the “gap”? _________ ___________________________________________________________________________________ Endocrine System ______ Thymus ______ Pancreas ______ Thyroid 25. True/False (circle one): The endocrine is a physically connected network of organs. ______ Hypothalamus 26. Compare and contrast steroid vs. non steroid hormones. Steroid Non‐steroid ______ Adrenal Glands a. Controls glucose levels in blood. Releases insulin and/or glucagon (sugars). b. Stimulates the pituitary glands and controls growth, reproduction, and body temp. c. Controls [H2O] in the blood and controls cell growth. d. Regulates metabolism. e. Allows WBC’s to mature. f. Primarily releases testosterone and is responsible for male sexual maturity. g. Releases epinephrine and increases breathing, alertness, and blood pressure. h. Primarily releases estrogen and progesterone; also, regulates female sexual maturity. 30. You are a Doctor and have a 54 yr. old female patient whose blood glucose levels are not normal. She is beginning to lose sensation in her feet and toes. She is experiencing a ___________________‐term disruption in homeostasis, where her ________________________(gland) is not functioning properly. It is likely that this patient has _________________________________(disease).