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BMS 250 Lab
Lab 3
| Term | Definition |
|---|---|
| Tissue | A group of similar cells working together for a common function |
| Epithelial tissue function | lines surfaces |
| Connective tissue function | connects different tissues |
| Muscle tissue function | produces movement |
| Nervous tissue function | communication |
| Simple | one layer of epithelial cells |
| Stratified | more than one layer of epithelial cells |
| Apical (free) surface | part of cell not attached to any fibers or other cells, lines lumen, in contact with outside environment |
| Basement membrane (basal lamina) | bottom of epithelial liner that anchors cells to connective tissue |
| Simple squamous epithelium | functions: diffusion and filtration; found in the alveoli, lining blood vessels, lining lymph vessels, an lining cavities |
| Keratinized stratified squamous epithelium | function: protection; found in the epidermis |
| Non-keratinized stratified squamous epithelium | function: protection; found lining the oral cavity, lining the esophagus, lining the vagina, and lining the anal canal |
| Simple cuboidal epithelium | functions: absorption and secretion; found lining the kidney tubules, ducts of pancreas and liver, and the ovary covering |
| Simple columnar epithelium | functions: absorption and secretion; found lining the stomach, lining the intestines, lining the fallopian tubes, and lining the uterine wall |
| Ciliated pseudostratified columnar epithelium | function: movement, goblet cells produces mucus, and provides some protection; found lining the respiratory pathway |
| Non-ciliated pseudostratified columnar epithelium | function: movement, goblet cells produces mucus, and provides some protection; found lining the male urethra and epididymis |
| Transitional epithelium | function: accommodate urine change; found lining the urinary bladder, lining the ureters, and the beginning of the urethra |
| Cell that synthesizes the collagen fibers | fibroblasts |
| Dense regular connective tissue | function: attaches bone to bone as well as muscle to bone; found in tendons and ligaments |
| Dense irregular connective tissue | function: protection; found in the dermis and periosteum (bone covering) |
| Components of connective tissue | cells, protein fibers, and ground substance |
| Lacuna | small spaces where chondrocytes occupy |
| Hyaline cartilage | functions: provides support and forms most of the fetal skeleton; found in the adult human body in the capping bone, nasal septum, and tracheal rings and is found in the human embryo in the fetal skeleton |
| What cell makes elastic fibers? | fibroblasts |
| Elastic cartilage | function: maintains shape while permitting extensive flexibility; found in the pinna (ear) and the epiglottis |
| Fibrocartilage | functions: weight-bearing cartilage that resists compression and acts as a shock absorber in some joints; found in the intervertebral discs and the pubic symphysis |
| What cells makes collagen? | fibroblasts |
| Osseous tissue | contains osteons, central canals, osteocytes in lacunae, concentric lamellae, and canaliculi; found in bones of skeleton |
| What type of cell creates osseous tissue? | osteoblasts |
| What type of cell breaks down osseous tissue? | osteooclasts |
| What is the process of bone hardening known as? | osteogenesis |
| Skeletal muscle | multinucleated, striated, attached to bone, guarding entrances and exits |
| Why is skeletal muscle multinucleated? | to allow bones to move efficiently through more production of energy |
| What are the contractile proteins found in skeletal, cardiac, and smooth muscle? | myosin (thick filaments) and actin (thin filaments) |
| Cardiac muscle | found in the myocardium, striated |
| What are the two purposes of intercalated disks? | strengthen connection between cells and promote rapid conduction of electrical activity |
| Smooth muscle | no striations, found in the vessel walls, internal sphincters, and arrector pili |
| Neuron | found in the brain, spinal cord, and nerves |
| How does the neuron transmit information? | dendrites bring in information and transmit it to the soma, axons carry outgoing signals to other cells |
Created by:
kkade
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