Tissues

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Muscle Tissue

Skeletal: Under voluntary control responsible for movement of bones of the skeleton has a striped appearance under the microscope

Smooth: Under involuntary control and is found throughout the body, lining the intestines, bladder, blood vessels, uterus ect. Spindle shaped cells, smooth appearance under microscope.

Cardiac: Found only in the heart and is under involuntary control. Cells are short, cylindrical and muscle fibres are branched. 

Nervous: Made up of neurones - recieves and interprets them and generates activity. 

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Epithelial tissue

  • Separates, covers and lines tissues
  • protective
  • absorptive
  • sensory input
  • secretion - produced and remains in the body 
  • excretion - produced and leaves the body 

epithelia

  • lining 
  • glandular

Characteristics

  • Apical (top) and basal (bottom)
  • Connects to neighbouring cells by junctional complexes
  • Avascular (no blood vessels) nutrients provided by underlying tissues
  • Innervated (supplied by nerves)
  • Basement membrane - nutrients and oxygen diffuse through
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Epithelium

Squamous: Single cell thick where diffusion occurs

Simple Columnar: Tall, elongated, found on intestine lining for absorption of food

Simple Cuboidable: Cube shape lines ducts and glands and kidney tubules

Ciliated: Have hair like appendices, move in a wafting motion found in the respiratory tract and oviduct.

Stratified: Series of layers, tough and resistant to frictional forces found in oral cavity, oesophagus and rectum 

Transition: Found in areas that need stretching bladder and urethra.

Connective: Responsible for supporting and binding organs and tissues. For transport and nutrients and removing waste.

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Glands and their location

Simple tubular: Stomach and intestine 

Simple coiled tubular: Sweat glands

Simple branched tubular: Stomach, mouth, tongue, oesophagus

Simple alveolar: Sebaceous glands

Branches alveolar: Sebaceous glands

Compound tubular: Bulbourethal glands, mammary glands, kidney tubules, testes, mucous glands of mouth.

Compound alveolar: Mammary glands

Compound tubuloalveolar: salivary glands, pancreas, respiratory passages

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