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8th Grade Anatomy, Joints & Nervous System

Across
Joints found between skull bones
Two words, fatty layer that insulates a nerve axon to make electrical signals move faster and more efficiently
Colored part of the eye that controls the size of the pupil
Clear, domed surface layer over the front of the eye
Extensions of the nerve cell body that receive information from other nerve cells
Joints that allow bones to twist around other bones
Chemical substance released by a nerve cell
Physical point of connection between two bones
White outer layer of the eyeball
Family of joints comprised only of cartilage, like those between the ribs and sternum
Family of joints that allow no movement
Layer of light sensitive cells at the back of the eye that send nerve impulses to the brain
"Hammer" bone in the middle ear
Down
"Stirrup" bone in the middle ear
Junction between two nerve cells
Two words, transparent gelatinous tissue that fills the eye ball
Joints that allow range of motion similar to a joystick, found in jaw
This type of stem cells are found in red marrow and produce blood cells
Three words, joint that allows greatest motion, including rotation
Layer of blood vessel infused tissue that covers bones
A nerve cell
Type of marrow in the center of adult long bones with high fat content
Joint allows side to side and back and forth motion without complete rotation, found in thumb
"Anvil" bone in the middle ear
Family of joint types that have a fibrous, fluid filled joint capsule
Long threadlike part of a nerve that transmits information from the cell body to other cells
Joints where bones slide past each other; in spine ankle and wrist
Type of marrow in spongy bone