Nervous System Pt 1
What does the nervous system consist of?
neurons
What are neurons?
cells that transmit "messages" or impulse throughout the nervous system
where is the rectus abdominis located?
center of stomach
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what does the suffix -cyte mean?
cell
What does the CNS consist of?
the Brain and Spinal cord
what does the axon do?
conducts impulses over large distances to other nerve, muscle, or gland cells.
WHat does Adductor mean?
Bringing the legs to the center of the body
What is a greenstick fracture?
Bone breaks incompletely, similar to the way a green twig breaks.
What 2 cell types is the nervous tissue made up of?
Neurons and supporting cells
What do nerves do?
what does it mean for the plasma membrane to be polarized?
There are less positive ions in internal face of neurons p.m than in external face
What does Abductor mean?
Bringing the legs away from the center of the body
As the human's grow, the number of Bones ______ because Bones ____ ________.
decreases; fuse together.
What muscles tissue type has voluntary contractions?
Skeletal muscle tissue
What does the sympathetic nervous system do?
stimulates fight or flight response
what does the parasympathetic nervous system do?
inhibits rest and digest
What are the main reasons anabolic steroids are widely abused?
1 influence by popular athletes
2 peer pressure
3 lure of landing athletic scholarships
1. Can live for a long time
2. Do not divide like other cells
What muscle tissue has multinucleate cells?
Skeletal muscle tissue
What is Depolarization?
The process where sodium rushes across plasma membrane (P.M) into neuron
what does the somatic nervous system allow?
Allows us to consciously control our skeletal muscles.
What is superior to the soleus?
Gastrocnemius
Compare the Axial Skeleton and the Appendicular Skeleton
Axial - bones are located on the center top part of your body
Appendicular -bones are located on your limbs, pelvis, and the rest of your body
what does the prefix Sarco- mean?
flesh