understanding the human body
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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| cells | made up of chemicals that combine to form tissue
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| nerve cells | usually have long, thin extensions that can transmit nerve impulses over a distance
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| epithelial cells | thin, flat, and tightly packed so that they form a protective layer over underlying cells
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| muscle cells | slender rods that attach at the ends of the structures they move
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| cell membrane | outer covering of the cell
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| nucleus | central portion of the cell
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| cytoplasm | surrounds the nucleus, the substance that performs the work of the cell
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| chromosomes | bearers of genes, made of deoxyribonucleic acid
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| tissues | groups of cells that work together to perform the same task
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| connective tissue | holds body parts together and connects them
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| epithelial tissue | covers the internal and external body surfaces
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| muscle tissue | expands and contracts, allowing the body to move
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| nervous tissue | carries messages from all parts of the body to and from the brain and spinal cord
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| organs | groups of tissue that work together to perform a specific function
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| systems | groups of organs working together to perform one of the body's major functions
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| dorsal cavity | on the back side of the body, is divided into the cranial cavity and the spinal cavity
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| ventral cavity | on the front side of the body, is separated into two parts by the diaphragm.
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| anterior (ventral) | front side of the body
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| posterior (dorsal) | back side of the body
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| inferior | below another structure
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| superior | above another structure
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| lateral | to the side
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| medial | middle or near the medial plane of the body
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| deep | through the surface
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| superficial | on or near the surface
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| proximal | near the point of attachment to the trunk
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| distal | away from the point of attachment to the trunk
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| supine | lying on one's spine facing upward
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| prone | lying on one's stomach facing downward
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| sagittal plane | divides the body into two parts, right and left
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| frontal (coronal) plane | divides the body into anterior and posterior sections
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| transverse plane | divides the body horizontally into a top and bottom
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| epigastric region | area above the stomach
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| hypochondriac regions (left and right) | regions just below the ribs
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| umbilical region | region surrounding the umbilicus (navel)
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| lumbar regions (left and right) | regions near the waist
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| hypogastric region | area just below the umbilical region
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| iliac, or inguinal, regions (left and right) | two regions near the upper portion of the hip bone
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| right upper quadrant (RUQ) | on the right anterior side, contains part of the liver, the gallbladder and parts of the pancreas and intestinal tract
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| left upper quadrant (LUQ) | on the left anterior side, contains the stomach, spleen, and parts of the liver, pancreas, and intestines
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| right lower quadrant (RLQ) | on the right anterior side, contains the appendix, parts of the intestines, reproductive organs in the female, and urinary tract
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| left lower quadrant (LLQ) | on the left anterior side, contains parts of the intestines, reproductive organs in the female, and the urinary tract
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Created by:
schoojl
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