- Created by: ShannThomson
- Created on: 04-11-12 04:56
-Cube shaped, as long as they are wide
-Have nuclei and occur in the centre of the cell
-Secretion and absorbtion
Location: - lines alimentary canal especially the stomach and small intestine.Perfom sensory function n nose, ears and taste buds.
-Elongated and colum-shaped
-Have nuclei that occor at the base of the cells
-Goblet cells (which secret mucus) occur between these cells
-Absorbtion, secretion and sensation (sensory nfunction)
Location: - lines the nasal cavitis, trachea and bronchi in the lungs. It also accors in the sensory organs eg: the ear aswell as in the fallopian tubes and uterus.
-Have goblet cells
-Look similar to the Columanar Epithelelium
-Traps dust in mucus, insures that it is expelled.
-Helps detect stimuloi in sensory organs.
Areoler Connective Tissue
Location: Forms a continous layer beneath the skin and lossely connects the skin to the underllying muscles. Fills spaces between organs, blood vessels, nerves and muscles.
-Matrix is Jelly-like
-Yellow elastic fibres (branched)
-White inelastic collogen fibres (parralel)
-Protects organs by serving as a packing tissue ie: around kidneys
Dense Connective Tissue
Tendons: muscle to bone -inelastic cannot strecth
Ligaments: bone to bonen -elastic and can strech
- Forms part of the endoskeleton in verabrates 1. Hyaline 2. Finoubourus 3. Elastic
-Between bones, lines joints forms permanent structures (pinna of the nose and C-shape rings in trache)
-Tough rubbery matrix that mainly consits of the protein chondrin. Has chrondrocytes responsinble for the secretion of the matrix.
-Connects bones to eachother ie: ribs to breastbone, shock absorber between vertabrae
-Makes Joint cavities, prevents friction in joints, keeps ctubes open (ie. trachea)
Location: Occurs in various bones of the endoskeleton
-Hard matrix of calcium phosphate and cacium carbonate, Has haversian canals that contain blood vessels, nerves and lymphatic vessels.
-On the outside bone is enclosed by a fiborus membrane, the periosteum.
-Shape and rigidty of the body
-Serves as a place for attachement of muscle development to make movement possible
-Minerals are stored here
Location: Circulates in blood vessels of the blood system
-Matrix is know as the blood plasma: Transports nurtients, hormones and waste products, regulates blood tempreture.
-1. Ererocytes: No nuclei, biconcave cantain heomoglobin which binds and transports O2 and C02, gives blood its red colour, high atmospheric pressure (ses) means less redbloodcells 2. Leucocytes: larger with no fixed shape, have a nucleus, Protecf body from diseases and infections, produces antibodies 3. Throbocytes: have no nuclei, blood-clotting
Striated Muscle Tissue
Location: attached to bone and results in the movemet of the skeleton. (skeletal muscle)
-Made up of large muscle finres-a long cylindircal cell, the contain light aqnd dark bands, consists of sarcoplasm, oval nuclei and mitrochondria, each fibre counstists of thousands of myofibrils.
-Works in pairs contracting and relaxing voluntarily and resluts in coordinated movemenent of specific body parts.
Smooth Muscle Tissue
Location: in the walls of the alimentary canal, bladder, blood vessels and uterus. it is NOT attavhed to bone.
Structure: spindle shaped fibres, wit one large nuclues per fibre. consits of sarcoplasm and surrounded by sarcolemma.
-involuntary conraction and relaxtation in slow, rythmetic movements. Peristalsis. and regulates blood flow.
Location: only occurs in the walls of the heart.
Structure: Consits of branched muscle fibres that are connected to eachother by muscular bridges.
-fibres are cross-striated but only have a single nuclues in each fibre.
-Displays automatism: involuntary contraction and relaxtion of the heart.
Location: Forms the brain and spinal chord and is know as the central and peripheral nervous system.
-Cell body, Dendrites (nerve impulse to the cell body) and axon (away from the cell body) -iclosed in myelin sheath 9insulates and increases speed of nerve impulses)
1. Sensrory -coduct nerrve impulses from receptors to CNS, 2. Motor -from CNS to effectors (muscles and glands) 3. Interneurons -betwen sensory and motor neurons.
Function: allows anorganism to percieve stimuli and respond to transmitting impulses