Overview
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each of the black spaces below before clicking
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| Atom | Invisible particle thzt combines other atoms to compose a molecule.
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| Molecule | Invisible particle that combines with other molecules to combine a cell.
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| Cell | Microscopic unit composed of molecules in structural and dissolved forms, combines with other cells to compose tissues.
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| Tissue | microscopic unit composed of cells that perform a common function; combines with ither tissues to form an organ.
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| Dorsal Cavity | Back portion of the body, smaller of the two major cavities.
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| Cranial Cavity | Houses the brain, surrounded by the skull
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| Spinal Cavity | Houses the spinal cord, surrounded by sections of the vertebrae
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| Ventral Cavity | Located at the front of the body, larger of the two cavities.
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| Thoracic Cavity | Encloses the lungs and a region between the lungs called the mediastinum.
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| Abdominal Cavity | Has three suddivisions, the upper and lower abdominal regions, and the pelvic region.
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| Oral Cavity | Contains teeth and tongue
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| Nasal Cavity | Within the nose
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| Orbital Cavities | Contain the eye and associated nerves and muscles.
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| Middle Ear Cavities | Contain middle ear bones.
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| Body Sections | (blank)
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| Saggital Section | Lengthwise cut that divides the body into left and right sections.
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| Transverse Section | Crosscut dividing the body into upper and lower parts.
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| Frontal Section | Lenghtwise cut that divides the body into front and back sections.
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| Body Systems | (blank)
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| Integumentary System | Skin and accessory organs of hair, nails, and various glands: functions to protect underlying tissues; helps regulate temperature.
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| Skeletal System | Bones, ligaments, cartilages; functions to protect tissues; permits muscle attachment, synthesizes blood components.
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| Muscular System | muscles; functions to permit muscle movement.
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| Nervous System | Brain, spinal cord and nerves;
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| Body Systems | (blank)
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| Integumentary system | skin and accessory organs of hair,nails, and various glands; function is to protect underlying tissues, helps regulate temperature.
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| Skeletal system | bones, ligaments, catilages; functions is to protect tissues, permits muscle attachment, synthesizes blood components.
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| Muscular system | muscles; function is to permit movement.
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| Nervous system | brain, spinal cord, and nerves; function is to communicate and coordinate.
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| Endocrine system | hormone secreting glands; functions is to communicate coordinate.
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| Digestive system | mouth, pharynx, esophagus, stomach, intestines, liver, and others; functions is to receive foods and convert them to useable forms.
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| Respiratory system | nasal cavity, trachea, lungs, and others; function is in gas exchange.
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| Circulatory system | heart, arteries, veins, blood; functions in transport of gasas, foods, hormones, waste, and other materials.
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| Lymphatic system | lymph nodes, lymphatic vessels, lymph, and others; function in food transport and body defense against disease.
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| Urinary system | kidneys, ureters, bladder, and others; functions in waste removal and fluid electrolyte balance.
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| Reproductive system | male and female reproductive organs; functions in the production of the next generation.
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| Cell Structure | (blank)
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| Cell structure | the cell consists of a mass of cytoplasm surrounded by a cell membrane; the cytoplasm contains a fluid called the cytosol and a number of microscopic structures called organelles.
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| Membranous Organelles: | (blank)
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| Nucleus | large chromosome-containing organelle where the genes reside and where the genetic information for protein synthesis is found; surrounded by a two-layer nuclear membrane; composed of DNA and histone protein.
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| Mitochondrion | sausage-shaped organelle where the chemical reactions of energy metabolism takes place.
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| Endoplasmic reticulum (E R) | a network of intracellular membranes where proteins are synthesized; rough ER has ribosomes, smooth ER has no ribosomes.
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| Golgi complex | a series of saclike membranes where the body secretions are packaged and stored.
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| Lysosomes | vesicles filled with digestive enzymes.
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| Peroxisomes | vesicles filled with various enzymes.
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| Nonmembranous Organelles: | (blank)
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| Cytoskeleton | the scaffold-like framework of the cell; composed of threadlike microfilaments; microtubules, and thick and thin filaments.
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| Centrioles | dotlike bodies that direct the movement of DNA during cell division; contained in the structure called centrosome.
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| Cilia | short hair-like structures that wave about and create currents to move fluids past a cell.
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| Flagella | long, hairlike structures that move a cell through a fluid.
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| Ribosomes | dotlike ultramicroscopic bodies where ammino acids are assembled to form proteins during protein synthesis.
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| Cell membrane | a double layer of phospholipids in which protein globules float; conforms to the fluid mosiac model.
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| Molecular Movement: | (blank)
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| Diffusion | the movement of molecules from a region of high concentration to a region of low concentration; usually takes place with small, inorganic ions and lipid-soluble materials.
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| Facilitated-diffusion | the movement of molecules from a region of high concentration to a region of low concentration assisted by carrier molecules; takes place with gluclose and ammino acids during flow accross the cell membrane.
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| Osmosis | the diffusion of water molecules accross a semipermiable membrane from a region of high concentration to a region of low concentration; occurs only with water.
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| Active transport | the movement of molecules accross a cell membrane assisted by carrier molecules and dependent upon the expenditure of energy; works regardless of any concentration gradient; operates for sodium, potassium, calcium, magnesium, and other ions.
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| Filtration | the movement of water accross a cell membrane by hydrostatic pressure; usually involves a solute dissolved in the water; requires membrane, operates with water and small ions.
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| Endocytosis | the movement of molecules accross a membrane by the creation of vesicles containing fluid or solid material; movements of fluids are called pinocytosis; movements of solids are called phagocytosis, requires expenditure of energy.
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| Cellular Attachments: | (blank)
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| Gap junction | one in which two cells are held together by interlocking membrane proteins; occurs in cardiac muscle and smooth muscle tissues.
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| Tight junction | one in which there is a partial fusion of the lipoproteins of two cell membranes; the strongest intracellular connections; occurs near the exposed surfaces of cells lining the digestive tract.
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| Desmosome | a junction where a very thin proteoglycan layer exists between the opposing cell membranes and is reinforced by a network of intermediate filaments that lock the two cells together; very strong junction that resists stretching and twisting; exists between
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Created by:
ron snyder
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