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chapt.#4
Tissues and Membranes
| Question | Answer |
|---|---|
| What is tissue? | group of cells with similar structure and function. |
| what are the 4 major tissue groups? | epithelial, connective, muscle, nerve |
| what is epithelial tissue? | covers the outer surface or lines the inside surface. |
| what are the different shapes of tissue? | spuamous, cuboidal, and columnar |
| wht is squamous? | flat |
| what is cuboidal? | cube shaped |
| what is columnar? | tall and narrow |
| how many layers does epithelial tissue have? | one |
| what is simple squamous epithelium? | flat layer, smooth, thin, and flat |
| what is stratified squamous epithelium? | many layers of mostly flat cells |
| where does mitosis occur? | in the lower cells |
| what is transitional epithelium? | stratified epithelium with varied shapes of layers |
| what is simple columnar epithelium? | one layer taller than they are wide |
| what is ciliated epithelium? | columnar cells with cilia |
| what are glands? | cells or organs that secrete something |
| unicellular has how many cells? | one |
| wht is multicellular? | similar or dissimilar cells that combine sectetions |
| what are examples of connective tissue? | blood, areolar, adipose, fibrous, elastic, bone, cartilage |
| what is a matrix? | structral network or solution of non living intercellular material |
| what is the second word for areolar? | loose |
| matrix has what two types of fibers? | caligen and elasten |
| what are IVDs? | discs |
| what are the three types of mucsle tissue? | skeletal, smooth, and cardiac |
| what do involuntary? | work together |
| what do blood vessels do? | dilate to maintain blood pressure |
| what does iris do? | constricts or dilates the pupil |
| what is the myocardium? | the walls of the chambers of the heart. |
| what are intercalated discs? | interlocking finger like projections of the cell membranes |
| what are the two structural divisions of the body? | CNS and PNS |
| what does the CNS consist of? | brain and spinal cord |
| What does the PNS consist of? | peripheral nerves |
| wht does the cell body contain? | organelles |
| what are axons? | the process that carries impulses away from the cell body |
| what are dendrites? | processes that carry impulses toward the cell body |
| what do electro impulses do? | travel along the cell membrane |
| what is periatal pleura? | lines thoracic cavity |
| what is vicseral pluera? | covers lungs |
| what is pericardium? | lines the fibrous pericardium |
| what is the periteniem? | lines abdomial cavity |
| what is meisentary? | covers abdominal organs |
| what is a mucous membrane? | line body tracts taht have openings to the outside |
| what do secreted mucous do? | keeps cells wet, lubricates, traps dust and bacteria |
| what is superficial fascia? | between skin and muscles |
| what is periosteum? | covers bone, anchors tendons and legaments to bone |
| what is perichondrium? | covers cartilage |
| what is synovial? | lines synovial joint cavities, sectetes synovial fluid |
| what is deep fascia? | covers skeletal muscles, anchors tendons to muscle |
| what is meninges? | cover the brain and spinal cord |
| what is fibrous pericardium? | forms a sac around the heart, lined by parietal pericardium |
| what type of gland consists of only 1 cell? | unicellular gland |
| what gland has ducts to take thier secretions to site of action? | exocrine glands |
| what gland has no ducts and secretions enter capillaries? | endocrine glands |
| what glands secretions are called hormones? | endocrine glands |
| what is simple squamous epithelium? | one layer of flat cells |
| what is stratified squamous epithelium? | many layers of cells and surface cells are flat |
| what is transitional epithelium? | many layers of cells with surface cells alternately rounded or flat |
| what is cuboidal epithelium? | one layer of cube shaped cells |
| what is columnar epithelium? | one layer of cells that are taller rthan they are wide |
| what is ciliated epithelium? | one layer of cells that are taller than they are wide |
| what is made of cells in fluid matrix called plasma? | blood |
| what are made of fibroblasts in a matrix of tissue fluid, collegen, and elastin fibers? | areolar connective tissue |
| what is made of cells specialized to store fat? | adipose tissue |
| what is made of primary collogen fibers? | fibrous conne4ctive tissue |
| what is made of primarily elastin fibers? | elastic connective tissue |
| whats made of osteocytes in a matrix of calcium salts and calcium? | bone |
| whats made of chondrocytes in a matrix thats smooth and flexible? | cartilage |
| what does the axon of a neuron do? | carries impulses away from the cell body |
| what do dendrites of a neuron do? | carry impulses toward cell body |
| what is the specialized cell that forms the myelin sheath? | schwan cells |
| what are the specialized cells in the central nervous system? | aligodendrocytes |
| what is the synapse? | space between the axon of a neuron and the dendrite or cell body of next neuron |
| what are two organs made of nerve tissue? | brain and spinal cord |
| what are two general functions of nerve tissue? | sensation and movement |
| what does the parietal pluera do? | lines the chest cavity |
| what does the visceral pluera do? | covers the lungs |
| what is the peritoneum? | lines the abdominal cavity |
| what is mesentary? | covers the abdominal organs |
| what is the parietal pericardium? | lines the fibrous pericardium |
| what is visceral pericardium? | covers the heart mucsles |
| what is superficial fascia? | between the skin and the muscles and contains adipose tissue |
| what is deep fascia? | covers each skeletal muscle and anchors tendons |
| what is synovial membrane? | lines joint cavities and secretes fluid to prevent friction when joints move |
| what is fibrous pericardium? | forms a sac around the heart |
| what is perichondrium? | covers cartialage and contains capillaries |
| what is periosteum? | covers vbone and contains blood vessels that enter the bone |
| whats meninges? | covers the brain and spinal cord and contains cerebrospinal fluid |
| what are chemicals that transmit impulses at synapse? | neurotransmitter |
| what protein fibers are very strong? | collagen |
| what is a nerve cell called? | a neuron |
| what is the cardiac muscle | myocardium |
| how many ducts do an endocrine gland have? | none |
| axon dendrite and cell body are three parts of what? | neuron |
| what tissue is made of calcium salts? | bone |
| what is the strong tissue that forms tendons and ligaments? | fibrous connective tissue |
| where is the cardiac mucsle found? | the heart |
| what are chondrocytes? | cartilage cells |
| what is plasma? | matrix of blood |
| what is elastin? | protein febers that are elastic |
| what is endocrine? | ductless glands |
Created by:
jessfowler08
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