Answer:
Our ear consists of
1 Outer ear (pinna) which passes through auditory canal leading to the ear drum (tympanum)
2 The middle ear consists of three tiny bones malleus, incus and stapes. the three bones are collectively called ear ossicals.
3 Inner ear or membranous labyrinth has two main parts-- cochlea and spiral-shaped, and semicircular canals.
The pinna collects the sound waves and conducts them through the external auditory canal. They finally strike on the ear drum which is set into vibration.
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Explanation:
the digestive and circulatory are the two systems that get nutrients to the bone cells
Hippocratic Oath: One of the oldest binding documents in history, the Oath written by Hippocrates is still held sacred by physicians: to treat the ill to the best of one's ability, to preserve a patient's privacy, to teach the secrets of medicine to the next generation, and so on.
Answer:
1. dendrite = directs impulses toward the soma.
2. axon = conducts impulses toward the synaptic terminal.
3. perikaryon = region surrounding nucleus.
4. collateral branches = main branches of an axon.
5. synaptic terminal = enlarged end of an axon.
6. synaptic vesicles = contains neurotransmitters.
7. axon hillock = connects the cell body and axon.
8. Nissl bodies = clusters of RER and free ribosomes.
9. telodendria = fine branches of an axon.
10. myelinated internode = part of axon covered by Schwann cell.
11. neurilemma = Schwann cell's plasma membrane.
12. axolemma = membrane of the axon.
13. astrocyte = Forms the blood-brain barrier.
14. cell body = soma.
