Tuesday, April 12, 2011

Grade 10: PORTFOLIO

Research the following:
1. Give the functions of the nervous system
2. What is a neuron?
3. Identify the structures concerned with the following:
a. screening the stimuli that reach the cerebrum
b. body controls of the autonomic nervous system
c. controlling heartbeat rate and breathing
4. Identify and give the functions of the following:
a. cranial nerves i. dendrites
b. sensory nerve fibers j. cerebellum
c. motor nerve fibers k. axon
d. spinal cord l. synapse
e. cerebral cortex m. olfactory nerve
f. medulla oblangata n. optic nerve
g. pons o. retina
h. pupil p. myelin sheath
5. Why is the rapid removal of acetylcholine important in controlling impulse transmission?
6. Explain how the following processes take place through your nervous system:
a. muscle contraction
b. heartbeat
c. expanding of blood vessels
d. vision during daytime and night time
e. hearing
7. Discuss the structure of the eye with its parts and functions
8. Discuss the structure of the ear with its parts and functions

Grade 9: TRANSPORT IN HUMANS

RESEARCH ON THE FOLLOWING:
1. What materials are transported during blood circulation?
2. Give the constituents of the blood.
3. What are the major functions of blood in our body?
4. State the roles performed by the following:
A. red blood cells
B. white blood cells
C. platelets
D. Veins
E. Capillaries
F. arteries
G. tricuspid valve
H. lymph
I. heart
J. pulmonary vein
K. spleen
5. How is blood clotting brought about?
6. Describe the function of the heart in transporting blood.
7. Describe the structure of the heart including its parts.
8. What is the role of the lungs in circulation?
9. What is a lymph? What is it made of? How is it transported in the body?
10. What is a complete blood count?
11. Discuss diseases of the blood and how they are brought about.
12 Do research on the work of William Harvey, and summarize his report on blood circulation.
13. Heart transplant and artificial heart.
14. What is a pacemaker?