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Unit 19: Biology Part 2 Page 8 of 137

Cartilage- Smooth covering found at the end of bones; made of tough
collagen protein fibers; creates smooth surfaces for the easy movement of
bones against each other.

Cell Body – Part of the neuron that contains the nucleus and organelles

Central Nervous System (CNS) – Part of the nervous system consisting of
the brain and spinal cord

Cerebellum – Part of the brain that controls body position, coordination, and
balance

Cerebrum – Part of the brain that controls voluntary motion and speech

Chemical digestion - Digestion in which large food molecules are broken
down into small nutrient molecules.

Cilia – Small hairs that push mucus and pathogens out of your body

Circulation – The movement of blood around the body

Cochlea – Liquid-filled cavity in the ear

Collagen-

Compact bone- The dense, hard outer layer of a bone.

Connective tissue- Tissue that is made up of different types of cells that are
involved in structure and support of the body; includes blood, bone,

tendons, ligaments, and cartilage.

Constipation - Having three or less bowel movements each week.

Contraction - Shortening of muscle fibers.

Cornea – Clear protective layer on the outside of the eye

Coronary Circulation – The process of providing oxygen to the heart muscle

Coronary Heart Disease – Atherosclerosis blocking blood flow to the heart

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