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- SMOOTH MUSCLE
- Nonstriated, one central nucleus
- Viscera, follicles, urethra anus
- Swallowing, blood flow, feces, urine, pupils, labor
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- CARDIAC MUSCLE
- Short cells, branched, intercalated disc, one central nucleus
- Heart
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- SKELETAL MUSCLE
- Long, threadlike, unbranched, parallel striations, multiple nuclei per cell
- Attached to bones, tongue, esophagus, lips, eyes, urethra anus, movement
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- NERVOUS TISSUE
- Large neurons, neurosoma, with axon, dendrite, and small glial cells
- Brain, spinal cord, nerves, ganglia
- Communication
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- BLOOD
- RBC are pale with no nucleus, WBC are dark with nucleus and are sparse, platelets are fragments
- Transports gases, nutrients, waste, heat
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- BONE TISSUE
- Concentric lamellae around central canals, Osteocytes in lacunae, interconnected by canaliculi
- Skeleton, bone, support
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- FIBROCARTILAGE
- Parallel collagen, rows of chondrocytes in lacunae
- Pubic symphysis, menisci, knee joint
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- ELASTIC CARTILAGE
- Weblike mesh amid lacunae, perichondrium
- External ear, epiglottis
- Elastic support
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- HYALINE CARTILAGE
- Clear, glassy matrix, chondrocytes in lacunae, small clusters of 3 or 4 cells, perichondrium
- Ends of bones at movable joints, fetal skeleton, trachea
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- ADIPOSE TISSUE
- Adipocytes, thin margins, nucleus at plasma membrane
- Subcutaneous fat, breast, surrounding organs, eyes
- Energy storage, thermal insulation, heat production, protective cushion, fill/shape
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- DENSE IRREGULAR CT
- Densely packed collagen fibers running in random direction, scant open space
- Deep portion of dermis
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- DENSE REGULAR CT
- Densely packed, parallel, fibroblast nuclei between
- Tendons and ligaments
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- RETICULAR TISSUE
- Loose network on reticular fibers and cells, infiltrated with leukocytes, lymphocytes
- Lymph nodes, spleen thymus, bone marrow
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- AREOLAR TISSUE
- Loose arrangement of collagenous and elastic fibers, abundant ground substance, blood vessels
- Under epithelia, surrounds blood vessels, nerves, esophagus, trachea, fascia,
- Loosely binds epithelia to deeper tissues, allowing passage of nerves, and blood vessels
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- TRANSITIONAL EPITHELIUM
- Surface cells are rounded, bulging at surface
- Urinary tract, kidney, ureter, bladder, urethra
- Stretches to allow filling of urinary tract
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- STRATIFIED SQUAMOUS EPITHELIUM nonkeratinized
- Multiple cell layers with cells becoming increasingly flat and scaly toward surface.
- Tongue, oral mucosa, esophagus, anal canal, vagina.
- Resists abrasion and penetration of pathogens
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- KERATINIZED STRATIFIED SQUAMOUS EPITHELIUM
- Multiple cell layers with cells becoming increasingly flat and scaly toward surface. Covered with layer of dead cells.
- Epidermis, palms/soles
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- PSEUDOSTRATIFIED COLUMNAR EPITHELIUM
- Looks multilayered but all cells reach basement membrane. Nuclei at sevearal levels. Goblet cells. Ciliated.
- Respiratory tract, nasal cavity, bronchi, urethra in male.
- Secretes and propels mucus.
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- SIMPLE COLUMNAR EPITHELIUM
- Single layer of tall, narrow cells, nuclei. Basal half of cells. Brush border of microvilli. may posses goblet cells.
- Inner lining of stomach intestines, gallbladder, uterus, and uterine tubes.
- Absorption, secretion, movement
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- SIMPLE CUBOIDAL EPITHELIUM
- Single layer of square/round cells, central nuclei, around central space
- Liver, thyroid, mammary, salivary, glands, kidney tubules, bronchioles.
- Absorption and secretion, movement of mucus.
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- STRATIFIED CUBOIDAL EPITHELIUM
- Two or more layers of cells, surface cells square or round.
- Sweat gland ducts, ovaries, testis.
- Sweat secretion, secretes ovarian hormones, produces sperm.
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- SIMPLE SQUAMOUS EPITHELIUM
- Single layer of thin cells, like fried egg, with bulge at nucleus.
- Air sacs of lungs, kidney, endothelium of heart and blood vessels, stomach, intestines, viscera, pleura.
- Rapid diffusion or transport of substances thru membranes. Serous fluid.
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