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understand the body

understanding the human body

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



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