Basic Trivia
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Each hand contains _ bones. | 27
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| Bones are made up of two main types of tissue: _ bone and _ bone. | spongy/ compact
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| _ bone is dense and heavy, and gives a bone its strength. | Compact
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| Compact bone is constructed from microscopic cylinders called _. | osteons
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| At the center of each _ is a cavity containing tiny _ _ that supply bone cells with nutrients. | osteon/ blood vessels
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| _ bone is filled with spaces to make bones lighter. | Spongy
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| A lattice of struts, or _, run through spongy bone. | trabeculae
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| Embedded throughout them are _ that lay down minerals to strengthen the bone. | cells
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| In some bones, the spaces between the struts are filled with _ _, a type of tissue that makes blood cells. | bone marrow
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| An osteoclast's job is to _ bone to release minerals into the blood or to turn _ into bone. | dissolve/ minerals
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| The control center of a cell is its nucleus, with _ pairs of chromosomes- one of each pair from your mother and one from your father. | 23
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| A _ is made up of tightly coiled DNA. | chromosome
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| Layer of skin and outer tissue of head including fat and muscle. | scalp
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| 8 curved bones fixed together enclose the brain. | cranium
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| Fixed joint between bones of the skull. | suture
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| 3 layered protective membranes surround the brain. | meninges
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| Mostly nerve fibers (axons) that carry information. | white matter
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| Very closely packed nerve cells. | gray matter
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| Folds and creases allow for maximum surface area. | gyri and sulci
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| Large vein that runs over the top of the brain. | cavernus sinus
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| Space within the brain filled with protective fluid. | ventricle
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| Carries visual information from the eye to the brain. | optic nerve
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| Wall of the orbital cavity, made of bone to protect the eye. | bony orbit
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| Sits within bony orbit and is attached to the optic nerve. | eyeball
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| The eight different bones of the cranium don't join together until about _ months of age. | 18
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| Before fusing, the bones are separated by membrane-filled gaps called _. | fontanelles
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| These enable the skull to be squeezed during _, and allow for rapid _ _. | birth/ brain growth
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| The brain's basic component is the _, a spindly, wirelike cell that works by sending electrical signals to other _. | neuron/ neurons
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| There are more than _ billion neurons in the brain, and each has up to _ connections. | 100/ 100,000
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| Every second, trillions of electrical signals dart among our neurons at speeds of up to _ mph. | 250
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| The scalp is dotted with about _ tiny openings called _; a hair grows from each one. | 10,000/ follicles
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| The main part of the brain, the _, is divided into 2 hemispheres. | cerebrum
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| The _ side is usually the best at math and language. | left
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| The _ side is better at visual skills. | right
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| The cerebrum is where thought process, _, and concious movement are processed. | memory
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| The _ _ is the bridge between the two sides of the brain. | corpus callosum
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| The _ coordinates movement and balance. | cerebellum
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| The _ _ regulates vital functions such as breathing. | brain stem
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| The _ _ connects the brain with the rest of the body. | spinal cord
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| The _ _ supplies blood to the head. | carotid artery
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| Each neuron has one _ that carries away outgoing signals, and up to 100,000 branching _ that carry incoming signals to the cell body. | axon/ dendrites
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| The brain takes a _ of the blood pumped by the heart. | fifth
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Created by:
mercyme0011undone
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